Antarctic Plate

Antarctic Plate
Antarctic Plate. Steven Dutch, Natural and Applied Sciences, University of Wisconsin - Green Bay First-time Visitors: Please visit Site Map and Disclaimer. Use "Back" to return here. On these diagrams, pairs of parallel lines show boundaries where plates are spreading apart, lines with ticks show boundaries where plates are colliding, and simple lines show other types of boundary. ... As a result, Antarctica is almost entirely surrounded by divergent plate boundaries.
31 May
Sea Floor Spreading Around The Antarctic Plate
As a result, Antarctica is almost entirely surrounded by divergent plate boundaries. As North America, South America, and Antarctica spread away from Africa, they also pulled away from each other. The gaps were filled by oceanic crust that now forms the tongue-like Caribbean and Scotia Plates.
18 May
Tectonics and landscape evolution of the Antarctic plate...
The development of this landscape since Gondwana breakup was ultimately controlled by the tectonic evolution of the Antarctic plate, beginning with rotation and translation of the West Antarctic microplates and formation of the Weddell Sea. The rifting of continents away from Antarctica, beginning with Africa and proceeding in a clockwise direction around Antarctica, led to the physical isolation of Antarctica.
What Caused the March 25, 1998 Antarctic Plate
The black focal mechanisms indicate the 1998 Antarctic plate event with (some of) its aftershocks. Bathymetry is from Smith and Sandwell [1994]. Transform locations are de-rived from satellite altimetry by Spitzak and DeMets [1996]. MRC is the Macquarie Ridge Complex and TJ is the Australia-Pacic-Antarctica triple junction.
You might be curious about how we book
There's good reason for this, as we d iscovered. The particular k nowledge gap that we were trying to close in our own. surveys concerns the development of the Antarctic plate. It was part of a. larger group of continental blocks called Gondwanaland, which, more than a. ... Antarctica led the researchers to conclude that 71 million years ago. three spreading ridges came together in a triple junction, where the Pacific and Antarctic plates came. up against a third, the Bellingshausen plate.
GPS evidence for a coherent Antarctic plate and for...
There is general agreement that Antarctica was a major participant in the last glacial age within the West Antarctic Ice Sheet (WAIS), perhaps contribut-ing more than 25 m to rising sea level during the last 21,000 years (Clark et al., 2002). ... (2001) estimate an uplift rate of 10 mm/year at MBL1. Fig. 5. Horizontal velocities after removal of clockwise rotation of the Antarctic plate. Errors are 1r, scaled by the square root of the chi-squared per degree of freedom of the solution.
On Seismic Strain-Release within the Antarctic Plate
Seismic strain release on the Antarctic continent takes place at a much lower rate than in other continental, intraplate areas. Tectonic and glaciogenic forces controlling this observed distribution have previously been discussed in terms of the Antarctic continent only. Improved locations of large earthquakes in the surrounding, oceanic, Antarctic Plate show that a number of these events, including the great 25 March 1998 earthquake occurring between New Zealand and Antarctica, have intraplate settings.
20 January
Plate tectonics indicate that Antarctica was joined to Australia...
Science related, hands-on lesson plans (geared to the state standards) deal with major issues about Antarctica. Lessons topics include glaciers, Arctic vs. Antarctic, food webs, insulation, penguins, core sampling, wind chill, the ozone layers and plate tectonics.
What Caused the March 25, 1998 Antarctic Plate Earthquake?
The black focal mechanisms indicate the 1998 Antarctic plate event with (some of) its aftershocks. Bathymetry is from Smith and Sandwell [1994]. Transform locations are derived from satellite altimetry by Spitzak and DeMets [1996]. MRC is the Macquarie Ridge Complex and TJ is the Australia-Pacific-Antarctica triple junction.
21 December
What is the neotectonic framework of the Antarctic plate?
Antarctic Seismology - where do we go from here? Structure and Evolution of the Antarctic Plate (SEAP) Workshop. ... Proposed Antarctic Backbone stations and Moving Array (Pinwheel). Recommendations: •International Program •Establishment of permanent. seismic stations on the interior •Systematic coverage of. Antarctica with a moving array •Focused experiments in key.
Jean-Yves Royer 2 and Millard F. Coffin 3
Between the Jurassic and the Late Cretaceous, time controls on the plate tectonic evolution of the region are few. Mesozoic marine magnetic anomalies off the shore of East Africa, Antarctica, and Western Australia document plate motions during the interval ... At the same time, the northern sector of the Kerguelen Plateau was transferred from the Indo-Australian Plate to the Antarctic Plate as Broken Ridge and the Ker-guelen Plateau were separated by the westward-propagating Southeast Indian Ridge in Eocene time.
Intraplate termination of transform faulting within the Antarctic...
Keywords: Antarctica; transform fault; fracture zone; plate tectonics; intraplate deformation 1. Introduction morphotectonic lineaments on the Antarctic continent in the Ross Sea region (namely Victoria Land and Ross Sea; An outstanding feature of the Antarctica–Australia plate Fig.
19 October
Relative Plate Velocities
Antarctic plate: very confusing, but seems to be moving generally away from the eastern hemisphere (Indian-Australian and Pacific plates) at 5 to 9 cm/year, with additional spreading from South America and the south Atlantic at 1.5 to 2 cm/year. African plate: a real mess! The continent is bounded by spreading on three sides (compression to the north in the Mediterranean Sea), with additional rifting taking place within the plate itself.
25 November
The Significance of Antarctica for Studies of Global...
120 ANTARCTICA: A KEYSTONE IN A CHANGING WORLD DISCUSSION OF THE ANTARCTIC PLATE-MOTION MODEL The kinematic model (Table 1) results in a much improved ?t to global observations of hotspots and it adequately closes the South Paci?c plate-motion circuit. I believe the model to lie within the constraints of local observations from Ant- arctica, but I accept that ?ne-tuning will be required as the hypothesis is tested in detail.
9 October
AGAP Antarctic Research Project
Build It – Print the Antarctic map that is attached. Using modeling clay build your model. ... More volcanoes form as the plate continues to move creating a mountain range. Many hot spots are located in the interior of plates…like the center of East Antarctica where the Gamburtsevs are. The hot spot theory suggests that ~65 Ma, as proto-Antarctica moved over a developed hotspot, volcanic mountains formed which we know today as the Gamburtsevs.
Global Volcanism Program | Regional Volcanoes
The Antarctic plate, largely aseismic and immobile, is broken internally by large rift structures which have produced one of the world's largest alkalic volcanic provinces. ... Antarctica contains one of the few volcanoes with long-term lava lake activity, which has attracted researchers to this 3794-m-high volcano overlooking the McMurdo Antarctic research station.
20 October
Antarctica plates into closest agreement. However, large uncertainties in the reconstructions and lack of geologic constraints on the tectonic history of Antarctica do not allow any of the alternative plate histories to be eliminated conclusively. Finally, a comparison of Lord Howe Rise-Australia and Pacific-West Antarctica stage poles for the interval 68 my to 59 my (anomalies 31 to 25) shows that at least three plate boundaries existed in the region during this interval: the Pacific-Antarctic ridge...
Pacific plate
I use the letter and number labels on this page if I don't want the students to know what they will get (the letters and numbers correspond to the plate groups and specialties on the student handout page). I find that I get a more random mix of groups this way. ... Australian plate Geochronology. Antarctic plate Seismology.
Antarctic landscapes
Antarctic landscapes in the souvenir and jewellery. Experience of Antarctica is unique and overwhelming and the phenomenon of the landscape and knowledge of its history continues to inspire artists and writers. ... Antarctica was part of the super-continent Gondwana, which was made up of South America, Africa, Madagascar, India, Australia and New Zealand. As the Earth’s tectonic plates shifted Antarctica was formed. Antarctica has never had an indigenous population and the first European perception of a southern...
Potential Mineral Resources
nents, Antarctica’s relationship to the surrounding continents can be explained by the process of plate tectonics. According to the theory of plate tectonics, the Earth’s rigid outer layer, called the lithosphere, is a mosaic of slablike plates that move with respect to one another at rates averaging a few centimeters per year. ... Subduction of the oceanic plate is still active to the north but has slowed or stopped to the south where the Antarctic plate has moved at an acute angle to South America.
A232 Goldschmidt Conference Abstracts 2008
The source volcanoes for these tephra layers are largely found within the Antarctic plate, although some South American and possibly a New Zealand volcano are also represented. ... The WAIS Divide ice core is located in central West Antarctica, in reasonably close proximity two the two main West Antarctic tephra-producing volcanoes, Mt.
Two Kainozoic meteorite structures were discovered during the study of coastal seas of Antarctica. The first structure, the Ross Crater, is giant "saucer", a hollow in crystalline basement of Antarctic plate, more 600 km in diameter and some 4 km deep - Challenger basin [1]. We had found allogenous and autigenous breccias on core photos of DSDP, site 270 [2], and later founded signs of shock metamorphism in thin sections.
About Antarctica
About Antarctica is a learner-centered instructional guide to the beauty and wonder of the world's last continent. Through the use of animation, video and photographic images, text from Antarctic experts, and activities providing immediate learner feedback, About Antarctica takes a truly multimedia, interactive approach to Web-based instruction. ... It includes sections on: Plate Tectonics, Topography, Weather Patterns, Ice Coverage and Movement, Global Warming and Ozone Depletion, and Antarctic Research.
4 August
Antarctic/Scotia plate
Antarctic/Scotia plate convergence southernmost Chile. South of the triple junction, the history of Late Ceno-zoic convergence is essentially divided in two phases. The first one took place between Nazca and South America plates, at a rate of about 90 mm/year (Cande and Leslie, 1986; DeMets et al., 1990) and ending with the collision between the Chile-Ridge and the Chile-Trench that occurred between 10 and 14 Ma (Cande and Leslie, 1986).
Antarctic Bestiary - Terrestrial
Here are some of the terrestrial animals we’ve encountered on the Antarctic Peninsula: Belgica antarctica —. ... Ixodes uriae —. A parasitic tick (an Arachnid, in the same class as spiders and mites). It feeds on the blood of Antarctic and Arctic seabirds, including penguins, petrels, and Arctic and Antarctic terns. These ticks are found at high latitudes in both hemispheres.
19 April
PLATES Project
The project is supported by a consortium of industry associates. The primary objectives are: To model past and present plate movement. Construct accurate, high-resolution global, regional or local plate models. To compile comprehensive databases. ... Lawver’s research areas include the tectonics of the Arctic/Antarctic polar regions. Lawver also supervises the work done by PLATES students on the tectonic evolution of East and Southeast Asia. Dalziel focusses on Pre-Cambrian tectonics as well as the tectonics of Antarctica.
11 December
This page has been archived.
Links to the page contain: Collapse of Antarctic Ice Shelf Unprecedented, Hamilton College......
13 September
Plate G-1 victoria land, antarctica. ... Plate G-1 is a NOAA-6 advanced very high resolution radiometer (AVHRR) image of that part of Antarctica, including the primary logistical base (McMurdo Station), which is the center for scientific research by the United States. Only large-scale features can be discerned on this NOAA image, which spans a region about 1000 km wide.
5 January
Motion of Nubia relative to Antarctica since 11 Ma: Implications
The Nubia-Antarctica plate boundary is bounded on the west by the Bouvet triple junction (BTJ), where the Southwest Indian Ridge meets the southern Mid-Atlantic Ridge and the South American–Antarctic Ridge (Fig. 1); it is bounded on the east by the Andrew Bain Fracture Zone (FZ) complex (Fig. 2), composed of a series of large transform offsets that appear to be within or near the Nubia-Somalia-Antarctica triple junction (Chu and Gordon, 1999; Horner-Johnson et al., 2005; Lemaux et al., 2002).
Research in Antarctica
Research in Antarctica. By: Austin Rosas. The most modern Antarctic research base is equipped. with all the latest technology for studying the. continent. ( Climate. With average annual temperatures at just a few degrees above freezing , Antarctica has one of the coldest climates known to man. ... Under the Ice. Antarctica lies on one of the largest tectonic plates on earth, appropriately called the Antarctic Tectonic Plate.
Dive and Discover : Antarctica : Seasons
Antarctic Ecosystem: Seasons. The Seasons Because of the earth's tilt and orbit around the sun, the poles receive less energy and heat from the sun. ... Expedition 10 takes place close to the South Pole, in the ocean around Antarctica during the southern hemisphere summer season. The days will be very long, with the sun below the horizon for only a few hours a day, and the sky will not become completely dark at night.
24 September
Keywords: Drake Passage, Phoenix Ridge, Antarctic plate...
In the Drake Passage, between South America and Antarctica, the last remnant of the once-extensive Phoenix-Antarctic spreading center, the Phoenix Ridge, appears to have become extinct at some time dur-ing the Pliocene (Larter and Barker, 1991). ... 1), has become welded to the Antarctic plate.
Mount Erebus, Antarctica
The Antarctica plate is mostly asesmic and moves little relative to other plates. About 95% of the edge of the plate is a divergent (spreading) plate boundary. Antarctic volcanoes are located along the margins of large rift systems. ... W.E. LeMasurier and J.W. Thomson (eds.), 1990, Volcanoes of the Antarctica Plate and Southern Oceans: American Geophysical Union, Washington, D.C., 487 p.
8 May
Antarctic Animals
Antarctic Animals. Antarctica — home to ice, penguins, and ... what else ? ... Since the waters were warmer back then, the mutation had no inherent advantage. However, when the continental plates shifted and what is now Antarctica broke off from South America, the Antarctic seas became increasingly colder and the fish without the genetic mutation died out.
31 July
Untitled Document
Upon further review of the Antarctic View, I discovered that the same activity seems to continue south towards the continent of Antarctica. ... A border of the Antarctica Plate is included in what is called the East Pacific Rise, an area of sea floor spreading between diverging plates, based on information I discovered from National Geographic.
23 September
Island, continental Antarctic
Warcup's soil plating method was used for fungal cultivation. A total of ten fungal taxa were isolated, consisting of seven ascomycetes, two anamorphic fungi and one yeast. In terms of their thermal classes, a total of four psychrophilic, five psychro-tolerant and 1 mesophilic fungi were isolated. ... Seabird influence on Antarctic terrestrial ecosystems. Antarctica’s terrestrial ecosystems are fragile and easily affected by human or animal activities (Chown et Gaston 2000, Selmi et Boulinier 2001, Frenot et al.
Are the Pacic and Indo–Atlantic hotspots xed?
Seaoor spreading models linking the African and Indian plates to Antarctica and the Antarctic plate to the Pacic are constrained by magnetic anomalies and fracture zone trends. Molnar and Stock [7] and Acton and Gordon [10] estimated errors associated with the seaoor spreading data and concluded that they were not sufcient to account for the hotspot discrepancy.
Antarctic ecology, geology, history
Subject Introduction to Antarctica Antarctic origins, geology and plate tectonics Ice sheet origins and modern climate Sea ice, ice shelves, and polynyas Ice cores, stable isotopes, and paleoclimates No class Antarctic lakes Space Science; Marine ecosystems and ice fish. Exam I Terrestrial ecosystems: soils, plants and inverts Ornithogenic soils Subantarctic islands Marine mammals in the Southern Ocean Exam II Fall Break...
Erebus in Antarctica often occur in rift zones, places where plates split apart and pull away from each other. Photo: NSF. CONTINENTAL DRIFT. ... Fossils found in Antarctic soil indicate that the now frigid continent was once lush with trees and ferns, and home to dinosaurs, amphibians, and later, marsupials. As Antarctica drifted poleward, cooler temperatures prevailed and plant and animal life dwindled as glaciers covered the continent.
Future Antarctic Margin Drilling
Evolution of linear volcanic ranges in Marie Byrd Land, West Antarctica: Journal of Geophysical Research, v. 94, p. 7223–7236. LeMasurier, W.E. and Thompson, J.W., 1990. Volcanoes of the Antarctic Plate and Southern Ocean: Antarctic Research Series, American Geophysical Union, Washington, D.C., v. 48, 489 pp.
science example result
The Antarctic Plate is moving quite slowly but the small changes in station location can now be measured using state-of-the art GPS instruments and processing technology with sufficient accuracy to determine plate motion. This motion is determined relative to a fixed reference frame. An improved reference frame has recently been published so the GPS station locations in Antarctica may be determined more accurately.
8 February
2013 Antarctic Blog
JP plated bacteria from some of the Antarctic samples we took last week. ... On the right is a photograph of an LB/agar plate with an inoculum from the hot spring at Kroner Lake on Deception Island, Antarctica. The temperature where the samples was taken was a "JP-certified" 52.6°C. Grown in a metal-free LB medium and incubated at 50 degrees overnight, the red arrow indicates a colony of a possible Antarctic thermophile (JP has some pretty strange things on his fingers).
3 December
Taken in Duse Bay, Antarctica, January 1999. Plaza Hotel, which is located on the Alameda, a main thoroughfare of the city, and within walking distance from the center of the city. (The street is also called Avenida Bernardo O’Higgins, a name reflecting the European influ-ence. ... The town of Ushuaia itself is growing rapidly, partly because of the increase in tourism to the Antarctic and partly because the Argentinian government wants to have a significant presence in Tierra del Fuego. Nonetheless, it is an isolated, rather desolate...
Seventeen Antarctic seismic events detected by global surface
Antarctic seismic and calving events. B06311. Figure 1. Examples from the GUI display for checking detected events. (a) Grade B event in Antarctica, 2 June 1999; (b) grade C event in Antarctica, 14 May 2007. In both Figures 1a and 1b the upper left panel displays the output of our detector in a 2 day interval, with peaks indicating the times of likely events. ... Antarctic plate earthquake?: Inferences from regional stress and strain rate fields, Geophys.
Neelon Crawford, Antarctic Glaciers #1, 1989, Photogravures, 16 x 20 inches, lent by the artist. his first trip. His photographs were translated into photogravure prints for a portfolio on Antarctica. The images by Klipper were selected from his Iceberg series. ... The primitive device, called a cinematograph, could take short video sequences. Ponting also brought some autochrome plates to Antarctica and took some of the first known color still photographs there.
A Positive Test of East AntarcticaLaurentia
Therefore, the persistent signature of this distinc-tive ~1.4-billion-year-old detritus in autochtho-nous units of Antarctica indicates that the central East Antarctic shield must contain an igneous geologic province of this age. ... Fields for within-plate (WPG), volcanic-arc (VAG), and ocean-ridge (ORG) granites are shown. (C) Zircon U-Pb concordia diagram for sample TNQ (table.
ICE :: Antarctica
Indeed, Norway's 1939 claim to Antarctica territory was carried out with this in mind (Auburn 1982: 3). Thus, the exploration of Antarctica was, at least partially, motivated by resource extraction and can be generally explained by balance-of-power politics. ... In 1972, the first international agreement specifically regarding Antarctic resources, the Convention on the Conservation of Antarctic Seals, was signed to regulate seal harvesting if such an industry were to develop.
11 August
Antarctic Plate. CASSY. Ross. ... (Australian Plate. Previous studies. Pole of гс FOR1/.
29 March
Increasing Antarctic Sea Ice under Warming Atmospheric...
Significant climate changes observed in the Antarctic include the increase in surface air temperature (SAT). SAT over the Antarctic as a whole has increased by 0.5°C in the last 50 yr (Jacka and Budd 1998), which appears to be part of a global SAT warming trend in recent years (e.g., Alley et al. ... The lat-est aircraft and satellite laser-altimeter observations in-dicate an increased thinning of glaciers and accelerated rise of sea level from western Antarctica (Thomas et al.
Lesson 3: Antarctic Oceanography
Lesson 3: Antarctic Oceanography-Animals: Penguins, Seals and Whales. Lesson Objectives: • Students will be introduced to the Marine animals that live on the. ice sheets of Antarctica. • ... 1. How does the increase or decrease of whaling over the centuries affect the food chain? 2. What adaptations enable sea animals to live in such a frigid climate? Whales: Extra layers of fat to protect from cold, Baleen is attached to plates on the whale's gums, and it serves as a filter by which the whale can strain krill, its main food source.
Antarctic Air Photography | Polar Geospatial Center
The application allows users to browse and download Antarctic air photos digitally rather than having to search through rolls of film in the USGS archives. We even have camera calibration information here for those who need it. ... Central Antarctica / South Pole.
9 June
Janusza 64, 01-452 Warsaw, Poland 2)Institute of Geophysics, University of Warsaw, Pasteura 7, 02-093 Warsaw, Poland. During four Polish Geodynamic Expeditions in years 1979 - 1991, a wide geophysical and geological program was performed in the transition zone between the Drake and South Shetland Microplates and the Antarctic Plate in West Antarctica.
25 April
Late Cenozoic Antarctic paleoclimate reconstructed from...
Lawver, L. A., Gahagan, L. M., and Cofn, M. F., 1992, The development of paleoseaways around Antarctica, in Kennett, J. P., and Warnke, D. A., eds., The Antarctic paleoenvironment: A perspective on global change: Antarctic Research Series, v. 56, p. 7–30. LeMasurier, W. E., and Thomson, J. W., 1990, Volcanoes of the Antarctic plate and southern oceans: Antarctic Research Series, v. 48, 488 p.
Antarctic Convergence. 40. and the United States have reserved the right to do so) and they do not recognize the claims of the other nations. ... Bentley Subglacial Trench (lowest point in Antarctica, -2540 m). Marie Byrd Land. Ross Ice Shelf.
ELSEVIER | 3. Circular plate model
Antarctic plates since the late Jurassic using the seafloor age data of Royer et al. [9] and show that the ambient tectonic stress state within continen-tal Africa and Antarctica has become increasingly more extensional as the plate has aged, thus potentially contributing to the stress field respon-sible for the observed continental rifting in these plates. We begin with an assessment of the distri-bution of lithospheric potential energy at the plate scale.
Two-stage rifting of Zealandia-Australia-Antarctica: Evidence
INTRODUCTION Plate reconstructions of Mesozoic Gondwana. place Zealandia (New Zealand and surround-ing continental shelf, e.g., Mortimer, 2004) at the Pacic margin, adjacent to southeast Aus-tralia and West Antarctica (e.g., Sutherland, 1999; Eagles et al., 2004). ... This paper focuses on the outstanding prob-lem of the nature and timing of extension in eastern Zealandia leading to Pacic-Antarctic Ridge formation and separation of the Campbell Plateau from West Antarctica.
Ferns from the Cretaceous of Alexander Island, Antarctica
2817.6 (Plate ID) from the Triton Point Formation at British Antarctic Survey locality KG 2817 on western Titan Nunatak, Alexander Island, Antarctic Peninsula, Antarctica (Fig. 1). Housed in the British Antarctic Survey (Cambridge, United Kingdom) Palaeontological Type and Figured Collection. Etymology: antarctica, referring to the occurrence of this species in Antarctica.
It is well known that Antarctica, the
covered in Antarctica, where plants are not commonly found. The swampy areas most. often associated with the types of plants that turn into coal are not currently found on the. Antarctic continent. Other evidence of past life (fossils) has also been found on Antarc-. tica. Paleontologists do not believe that these animals that were apparently in Antarctica. could have survived in the climate as. it is today. This lead scientists to be-. lieve that in the past Antarctica must.
Triassic seed ferns from Antarctica | PLATE II
PLATE I. Glossouteridales. 1. NAerous Gfossopteris leaves from Skaar Ridge, central Transantarctic Mountains (Buckley Formation, probably Late. Permian). x 0.3. 2. Gangamopteris leaf from eastern side of Aztec Mountain (Beacon Heights area, southern Victoria Land, Antarctica). x 0.8. 3. Transverse section of ovulate organ originally described by Gould and Delevoryas (1977) from the Bowen Basin, Queensland
Part 1 of our Antarctica Experience: Patriot Hills
At least for a short period, she can see along the western side of the Antarctic Peninsula, some pack ice and icebergs and nearby a mountain range. A little later, our camera starts playing up and refuses to take more pictures. ... Further away is the camping area for the self-supported groups, who only use ALE for overall logistics. Most of these are climbers bound for the nearby mountain range that includes Mount Vinson, the “highest” peak on Antarctica, a matter which is currently under dispute.
4 December
Explore Antarctica!
The unit accompanies the exhibit Antarctica – Pioneering American Explorations of the Frozen Continent at the Museum of Texas Tech University open January 30th to December 20th. The exhibition highlights expeditions into the unknown of Antarctica and Texas Tech University’s own Dr. F. Alton Wade. ... Give each student an “Exploring Antarctica” handout. Have students read the timeline to learn about the history of Antarctic exploration and answer the questions.
Hudson Mountains (Fig. 1) are located close to Pine Island Glacier within West Antarctica. Their geology is poorly known, but among the exposed nunataks are three extensively eroded Miocene volcanoes and young, slightly eroded parasitic cones11. ... 11. Rowley, P. D., Laudon, T. S., La Prade, K. E. & LeMasurier, W. E. in Volcanoes of the Antarctic Plate and Southern Oceans (eds LaMasurier, W. E. & Thomson, J. W.) 289–293 (American Geophysical Union, Washington, 1986).
The Antarctic Coastal Current
This annual expansion of sea-ice covers 22 million km2 in winter but only 8 million km2 in summer, and is such a dominat aspect of the waters sorrounding Antarctic that any assesment of processes in the coastal zone must include the entire region anually covered in sea ice. Secondly, the coastal shelf sorrounding Antarctica is relatively narrow and deep.
2 December
The Antarctic is a Hungry Place | Tagging Whales in the...
The whales are down here in the Antarctic to eat, of course. ... Like all baleen whales, humpbacks feed by engulfing vast quantities of water and krill and then straining the prey through their baleen plates. We see this whole process unfold when the whales feed near the surface, as they burst into the air with their throat grooves massively distended and water spills out through their baleen.
16 January
Antarctic Surface Water (AASW) extends with rather uniform properties from the PF to the continental margins of Antarctica, where shelf waters are found at near freezing temperatures. ... Gordon A. L. and E. Molinelli (1982) Southern ocean atlas. Columbia University Press, New York, I1 pp.. 233. plates. Gordon A. L., H. W. Taylor and D. T. Georgi (1977a) Antarctic oceanographic zonation.
Antarctica is Earth's southernmost continent, overlying the South Pole. It is situated in the southern hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. ... Geologists tend to study plate tectonics, meteorites from outer space, and resources from the breakup of the supercontinent Gondwanaland. Glaciologists in Antarctica are concerned with the study of the history and dynamics of floating ice, seasonal snow, glaciers, and ice sheets.
12 October
Plate 3. The seasonal mean paths of the Antarctic Polar...
Plate 2. Our mean path for the Antarctic Polar Front (black line) compared with the mean paths of Gille [1994] (dotted green line), Orsi et al. ... The PF is intensied (increased width and temperature change across the front) at major bathymetric features, includ-ing the Pacic-Antarctic Ridge, Drake Passage, the Kerguelen Plateau, and crossing the Southeast Indian Ridge (Plate 1, Figures 3a, 3b, and 3e).
Current plate motions
An inversion of only South America-Africa, Antarctic-South America, and Africa-Antarctica plate motion data suggests the small misfit is caused by non-closure of this three-plate circuit. The non-closure may be due to deformation within one of these. ... South American-Antarctic plate motion over the past SOMyr, and the evolution of the South American-Antarctic ridge, Geophys. J., 94, 377-386. Belderson, R. H., Jones, E. J. W., Gorini, M. A. & Kenyon, N. H., 1984.
Antarctica. Antarctic Treaty. ... Frank Hurley created an incredible photographic record of the expedition’s demise, despair, and ultimate triumph. The images are absolutely captivating. Paging through this stunning, large-format book makes one wonder what were on the plates that sank with the ship.
Antarctica and Argentina with Lois and Jason
Antarctica and Argentina. February 2 - 20, 2001. As our ship cast off from the dock at Ushuaia in Tierra del Fuego, Argentina to begin our voyage to the Antarctic Peninsula, we hear the dock hands call out "Have a good Drake." As we learned, that also is the common sign off between ships sailing the Antarctic or Southern Ocean. ... But Antarctica is rich in natural resources (it was once part of Africa before the plates moved it south) and a fabulous tourist attraction.
6 December
Upper mantle seismic anisotropy of South Victoria Land
2.1 Regional and tectonic setting The Antarctic continent has undergone a complex tectonic evo-lution that is expected to have left some imprints on the litho-spheric mantle. Antarctica is generally divided into two major provinces: East Antarctica and West Antarctica (Dalziel 1992). ... Teleseismic shear wave splitting observations have also been analysed to study the seismic anisotropy of the Antarctic plate at the very northernmost edge of the study region (Pondrelli et al.
A physical record of the Antarctic Circumpolar Current: Late
Results are consistent with an Antarctic Peninsula provenance. (values for E. Antarctica and Antarctic Peninsula from Joseph et al., 2002). ... Earth and Planetary Science Letters 182, 259–273. Berggren, W.A., Hollister, C.D., 1977. Plate tectonics and paleocirculation—commotion in the ocean. Tectonophysics 38, 11–48. Broecker, W.S., 1991.
Antarctica | Libraries | Colorado State University
This Web page has information on Antarctica."Speculation over the existence of a 'southern land' was not confirmed until the early 1820s when British and American commercial operators and British and Russian national expeditions began exploring the Antarctic Peninsula region and other areas south of the Antarctic Circle" (CIA World Factbook).
19 July
Today’s Antarctic region once as hot as California, Florida
Today the average annual South Pacific sea temperature near Antarctica is about 0 degrees Celsius. These ancient ocean temperatures were not uniformly distributed throughout the Antarctic ocean regions — they were higher on the South Pacific side of Antarctica — and researchers say this finding suggests that ocean currents led to a temperature difference. “By measuring past temperatures in different parts of Antarctica...
22 April
The antarctic treaty
The Antarctic Treaty, the earliest of the post-World War II arms limitation agreements, has significance both in itself and as a precedent. It internationalized and demilitarized the Antarctic Continent and provided for its cooperative exploration and future use. ... By the 1950s seven nations -- Argentina, Australia, Chile, France, New Zealand, Norway, andthe United Kingdom -- claimed sovereignty over areas of Antarctica, on the basis of discovery, exploration, or geographic propinquity.
23 December
Blood Falls, Antarctica - MicrobeWiki
Blood Falls, Antarctica is a subglacier outflow that hosts a habitat of microbes. Blood Falls is able to be seen due to the interactions between Taylor Glacier and Lake Bonney. The subglacier outflow...
9 April
Present Day Antarctica - Interactive System for Ice sheet... An Antarctica "Developmental" Data Set has been created incorporating data described in. Le Brocq, Anne M; Payne, Antony J; Vieli, Andreas (2010): An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1). ... The temperature, geothermal heat flux (Shapiro & Ritzwoller), and bedrock topography fields from Le Brocq et al's data set were extrapolated onto the additional grid points on the SeaRISE standard grid using thin-plate radial basis functions.
9 February
Electromagnetic Research in Antarctica
Electromagnetic Research in Antarctica. During the 1960s and 70s, a group of UW faculty members and graduate students carried out an extensive program of research to study radio wave propagation in the Antarctic ionosphere and terrain. As a part of that effort, electrical engineering professor Irene Peden and colleagues obtained the first quantitative information about the electromagnetic properties of the Antarctic ice sheet, data critical to communications and navigation in the south polar region.
30 December
Antarctic Convergence. 40. the United States have reserved the right to do so) and they do not recognize the claims of the other countries. ... Bentley Subglacial Trench (lowest point in Antarctica, -2540 m). Marie Byrd Land. Ross.
The Antarctic Continent. Click Here for a Satellite Image of Antarctica. Antarctica is not owned by any one country. Click here to view a map of Antarctic regions and general topographical sites. ... Trivia About Antarctica. Antarctic Timeline and Explorers. Tales of Exploration. NOVA Online/Shackelton
6 August
Future Science Opportunities in
What is the role of Antarctica and the Southern Ocean in the global climate system? The ocean currents and air circulation of the Antarctic region are inextricably linked to those on the rest of the planet. ... What role has Antarctica played in changing the planet in the past? The movement, fragmentation, and collision of Earth’s tectonic plates can have dramatic conse­ quences, causing earthquakes and volcanoes, constructing new mountain ranges, opening gate­ ways between oceans, and triggering global climate shifts.
Desiccation protects Antarctic mosses from
Desiccation protects two Antarctic mosses from ultraviolet-B induced DNA damage. Johanna D Turnbull, Simon Leslie and Sharon A. Robinson. Institute for Conservation Biology, University of Wollongong, NSW 2522, Australia. Abstract Living in a frozen desert, Antarctic mosses are characterised by the ability to survive desiccation and can ... 2006; Turnbull and Robinson 2009), the alga Prasiola crispa ssp. antarctica (Kutzing Knebel (Lud et al. 2001) and the Patagonian herb, Gunnera magellanica Lam., (Rousseaux et al.
Antarctic Ice Cores and Environmental Change
Dr. T.H. Jacka, Glaciology Program, Antarctic Cooperative Research Centre and Australian Antarctic Division. For more information, email: Figure 1 Scientists measure ice cores from deep drilling sites on the ice sheet near Casey station Photo by M.Holmes, 1993 © Copyright Australian Antarctic Division. Antarctica is the coldest, windiest, highest and driest continent on Earth.
26 November
In search of the first Antarctic Avian
! • Over 100 million birds breed around the rocky Antarctic coastline and offshore island - Includes birds that conduct trans-hemispheric migrations down to Antarctica. !- Potential to facilitate movement of AIVs into and out of Antarctica. • A small number of studies have previously shown that some penguins and other birds in Antarctica have influenza A antibodies.
Antarctic Pollution Issues
Antarctic pollution issues require research to be conducted on external pollution rates as they affect not only Antarctica, but contemporary global systems. Exposing the pollution in Antarctica will demonstrate how pollution affects not just a domestic area, but the world at large. ... Key Words: Antarctic Treaty, Antarctica, CO2, Lead, Ozone Depletion, Solid Waste.
31 October
Recent extension driven by mantle upwelling beneath the
Fitzgerald, P. G. (2003), Tectonics and landscape evo-lution of the Antarctic plate since Gondwana breakup, with an emphasis on the West Antarctic rift system and the Transantarctic Mountains, in Antarctica at the Close of the Millennium, edited by J. Gamble et al., R. Soc. ... LeMasurier, W. E. (1990), Late Cenozoic volcanism on the Antarctic Plate: An overview, in Volcanoes of the Antarctic Plate and Southern Oceans, Antarct.
ANTARCTIC FUNGI | Connell Lab | University of Maine
Projects - ANTARCTIC FUNGI. Antarctica in the Media. ... Which microbes are the main players in utilizing inorganic carbon and chemical energy and nutrients from rocks and soils that are very poor in organic matter?Antarctica is a very harsh continent with very little life. Food webs have to be very “creative” to adjust to conditions that have been compared to life on other planets or life during the early Earth.
1 December
Schedule | Antarctic Geologic Drilling Workshop
Investigating glacial landscape evolution in Antarctica via low-temperature thermochronometry of very sparse bedrock samples. Balco, Greg. ... Mapping the Contemporary Stress Field in the Antarctic Plate from Borehole Data.
7 August
Pacific plate
I use the letter and number labels on this page if I don't want the students to know what they will get (the letters and numbers correspond to the plate groups and specialties on the student handout page). I find that I get a more random mix of groups this way. ... Australian plate Geochronology. Antarctic plate Seismology.
Iwerks ® Film: Antarctica
v Antarctica’s dry valleys provide scientists with sites suitable for testing planetary probes under conditions approximating those of Mars. v Core samples of Antarctic ice help scientists unravel important clues about past global and climatic conditions and investigate past cooling and warming trends, as well as significant recent changes brought about, perhaps, by human activity on our planet. Sunshine State Standards Addressed: Kindergarten
Tectonics and landscape evolution of the Antarctic plate since Gondwana breakup, with an emphasis on the West Antarctic rift system and the Transantarctic Mountains. ... Geology and regional significance of the Cox Peaks Roof Pendant, Central Scott Glacier Area, Antarctica. In: Ricci C.A. (ed.), The Antarctic Region: Geological Evolution and Processes, Terra Antarctica Publication, Siena, 209-212.
Planning Your Trip
kinds of facts, then Antarctica is the continent for you. When to Go. T. 3 he seasons in the southern hemisphere are the opposite of those in the northern hemisphere. Summertime in Antarctica is November, December, and January. Wintertime is June, July, and August. ... In an Antarctic winter, the sun never rises. 4 For much of the year, Antarctica is surrounded by ice. In the dead of winter, the sea.

Antarctica and Neogene Global Climate Change

Assess the quality and quantity of data on Cenozoic climate history from the Antarctic region; for example, describe the stratigraphic completeness and spatial distribution of sampling sites for the Neogene in and around Antarctica. ... InTeGrate is Pleased to Announce the Publication of a New Teaching Module: Living on the Edge: Building Resilient Societies on Active Plate Margins Geological monitoring can greatly improve our planning for and response to catastrophic events such as earthquakes and volcanoes.
9 September
eric hiatt /Antarctica Links
Australian Antarctic Program. The British Antarctica Survey. Scott Polar Research Institute (SPRI), Cambridge University. National Snow and Ice Data Center. ... NASA's West Antarctic Ice Sheet Initiative. General Information: NASA's Global Change Master Directory. The America Museum of Natural History Antarctica page. Here is a great site about snow crystal formation and snow flakes.
6 September
Some territories in Antarctica are the French Southern Territories, South Georgia, South Sandwich Islands and McDonald Island. Location: Antarctica is the southern most part of the world. ... 98% of the continent is covered by the worlds largest ice sheet, the Antarctic Ice Sheet. Because of this, Antarctica is always changing. Population: There are no residents of Antarctica. However, scientists make long trips to Antarctica to complete studies.
4 April
Antarctica Archives - Blogs from VIMS Antarctic Research
Limacina helicina antarctica. Dr. Steinberg has been using Antarctic Krill, Euphausia superba, and gelatinous salps, Salpa thompsoni, to conduct fecal pellet experiments as a way to measure zooplankton contribution to carbon flux (through poop!) in the WAP. Her Ph.D. student, Tricia, is also conducting experiments with an open ocean snail called a pteropod.
4 December
Sulfur isotopic measurements from a West Antarctic ice core
Antarctic Scientific Expedition) traverse in East Antarctica demonstrated that the decrease inland of xsSO24 extended only 250 km and then SO24 increased in concentration from 250 to 770 km (Proposito and others, 2002). In surface snow. ... Vials were placed on a hot plate in a positive-pressure, High Efficiency Particle Air (HEPA)-filtered air fume hood, and the solutions were slowly evaporated until the volume was reduced to approximately 20 mol from an initial 1 L. The concentrated sample was then...
ASU explores Antarctica | ASU Office of Knowledge...
Antarctica is an ideal astronomical observatory, with long periods of darkness in the Antarctic winter and no interfering city lights. Antarctica is where most of the world’s meteorites are found. ... Its cold, constant temperatures provide a unique opportunity to study "deep sea" life in relatively shallow water. With almost 10 percent of Earth's continental crust, Antarctica holds substantial geologic records of plate tectonic processes, evolution and dispersal of life, and evidence of past environmental conditions.
4 July
Admiral Byrd and Antarctica
Born into an aristocratic Virginia family in 1888, Richard E. Byrd served in and worked with the Navy for nearly 45 yeras to become one of the most active explorers of the Antarctic. Byrd began his career after graduating from the U.S. Naval Academy in 1912, when he learned to fly and explored the world. Byrd went on to gain international fame and recognition for his dedication to researching and preserving the unique environment in Antarctica.
19 May
Earthquakes | Continental plates
Continental plates. Convection current. The Earth’s shell or crust is split into a. Outer core of molten metal. number of plates. These plates t together like a huge jigsaw puzzle. The plates oat. Ridge. Inner core of solid metal. ... Antarctic Plate.
Biotic and chemical characteristics of some soils
Heatwole, H, Saenger, P, Spain, A, Kerry, E & Donelan, J 1989, 'Biotic and chemical characteristics of some soils from Wilkes Land, Antarctica', Antarctic Science, vol. 1, no. 3, pp. 225-234. ... Cores were homogenized at 10000 rpm in an MSE homogenizer for 2 min in 100 ml of sterile water, and dilutions of loo, lo', lo2, lo3and lo4were prepared. For each dilution 0.1 ml was transferred to 2% agar plates of Bold's Basal Medium (BBM) (Bold 8z Wynn 1978).
Antarctica – Imagined Geographies
Researching this topic | Where is Antarctica?
Antarctica is located all around the South Pole. There is no natural human population in Antarctica, the only continent with no natural human population. Some explorers and scientists live in Antarctica temporarily, but conditions are too severe to support a permanent human population. ... It will also tell you about the Protocol on Environmental Protection to the Antarctic Treaty, and the Madrid Protocol. These agreements banned mining in Antarctica up to the year 2041.
UAB - CAS - Antarctica - Life on the Antarctic Seafloor...
My former doctoral student, Marc Slattery, now a Professor at Ole Miss, could not believe his eyes. The giant tree-like soft coral, Gersemia antarctica, seen on the time-lapse video he had just recovered, had laid its trunk down against the substrate...
4 May
Nuclear Power at McMurdo Station, Antarctica
1: Important Antarctic Bases, Including McMurdo Station. (Source: Wikimedia Commons). During the 1960s and early 1970s, McMurdo Staion, the largest research base in the Antarctic, was powered by a medium-sized, portable nuclear reactor. [1] The extreme temperatures in Antarctica necessitated large amounts of fuel oil to maintain operations, making the prospect of nuclear power, an attractive alternative.
11 April
Territorial Claims in Antarctica: A Modern Way to
Antarctic Mineral Resources, 3 as well as the recommendations of the Consultative Parties to the Antarctic Treaty. I believe that despite the freezing of territorial claims, a discus-sion of their legal soundness may be resumed, or let me say, must be resumed, in view of their continuing relevance at a practical policy level. Even if the overfreezing of territorial claims in Antarctica dur-ing the past years were a skillful diplomatic device, it cannot be con-sidered one of the best aspects of the Antarctic System.
eThemes - Continent: Antarctica
Continent: Antarctica Discuss this eTheme. Learn about life in Antarctica including the climate, explorers, animals, geographic features, and current scientific expeditions. Take a virtual tour of this cold continent and view 360-degree images. ... PBS: Antarctic Odyssey Report this link as broken? Click on "Shackleton's Expedition" to play "Escape from Antarctica," a short sailing game that demonstrates how explorers navigated before modern technology.
2 January
READING GUIDE | Antarctic Explorer Map
Antarctica, A Guide to the Wildlife. 2013, PAPER, 160 PAGES, $25.99. Designed for the field, this compact handbook features all the species of birds, seals and whales the traveler is likely to encounter on an Antarctic voyage. (Item ANT30). Ron Naveen. ... With a map of the Antarctic continent on the reverse. (Item ANT128). Sebastian Copeland. Antarctica, A Call to Action. 2008, hard cover, 96 pages, $2.00.
Antarctic Ice
Will Antarctic ice loss continue at this rate? This is not obvious - Antarctica is a very high continent centered on the south pole and therefore surrounded by a powerful polar atmospheric cell which communicates little with the warmer air to the north (this is not true of Greenland, which is farther from the pole and has a different climate and communication outside the north atmospheric Polar Cell).
1 January
Neogene vegetation of the Meyer Desert Formation...
Both D. antarctica and C. quitensis are considered to have colonized the Antarctic Peninsula during the Holocene. ... The isolation of Antarctica as a result of plate tectonic processes undoubtedly played an important. A.C. Ashworth, D.J. Cantrill / Palaeogeography, Palaeoclimatology, Palaeoecology 213 (2004) 65–82.
Antarctica– WashLaw Web
Antarctica law resource page with links to Antarctica environmental law, antarctica constitution, antarctic treaties, and more. ... Antarctica Treaty Online From the Australian Antarctic Division (AAD). Antarctica Protection of the Environment Laws and regulations from the Ministry of the Environment, Government of Japan.
29 September
Antarctica Is Gaining Ice
Land ice is the ice that has accumulated on Antarctica for thousands of years through snowfall, while sea ice generally forms in the salt-water ocean around Antarctica. In order to argue the point that Antarctica is gaining ice, one must know the facts. The Antarctic is gaining sea ice and has been since satellite measurements began about thirty years ago.
Above: Get out daily for hikes and excursions amid the bergs; sea stars are among Antarctica’s vibrant undersea creatures. Even Explore the Antarctic Undersea. NG Explorer travels with an undersea specialist who dives with a video camera and brings back footage for all to watch in vivid HD, in the dry warmth and comfort of the lounge, perhaps with a cocktail in hand and hors d’oeuvres at the ready. ... Right: An array of baked-fresh daily breads; a strikingly plated dinner entree.
Cenozoic exhumation of the western antarctic peninsula
plate soon after ridge-trench collision, cessation of subduction, and opening of the slab window, presumably due to increased asthenospheric upwelling beneath the plate. Introduction The Antarctic Peninsula preserves a geologic record of the numerous. ... Changes to the Chemical Index of Alteration of the sedimentary record on James Ross Island suggests that the Antarctic Peninsula, like much of West Antarctica, was heavily glaciated by the early Oligocene (Dingle and Lavelle, 1998), and continental shelf...
Past Grants “Biostratigraphy of the northern Antarctic Peninsula and adjacent islands, Antarctica", NSF grant DPP 7421509-AO3, Co-principal investigator. ... Biogeographic significance of the Late Mesozoic and Early Paleogene molluscan faunas of Seymour Island (Antarctic Peninsula) to the final breakup of Gondwanaland. in: Historical Biogeography, Plate Tectonics and the Changing Environment, Proc.
Slab Window Migration and Terrane Accretion
Cenozoic Antarctic Peninsula plate reconstructions are especially reliable as ridge?trench collision events placed one part of the Antarctic plate in contact with another part of the same plate. Thus, postsubduction motion along this “boundary” was essentially zero. Comprehensive tectonic and slab window reconstructions for both southern South America and the Antarctic Penin-sula are given by Breitspecher and Thorkelson [2009].
Published Magnetic Picks for Tectonic Reconstructions
Cande, S. C., C. A. Raymond, J. Stock, and W. F. Haxby (1995), Geophysics of the Pitman fracture zone and Pacific-Antarctic plate motions during the Cenozoic, Science, 270, 947-953. Cande, S. C., J. M. Stock, R. D. Muller, and T. Ishihara (2000), Cenozoic motion between East and West Antarctica, Nature, 404, 145-150. Cande, S. C., and W. F. Haxby (1991), Eocene propagating rifts in the Southwest Pacific and their conjugate features on the Nazca Plate, J. Geophys.
14 June
Important role for ocean warming and increased
Here we show that accelerated basal melting of Antarctic ice shelves is likely to have contributed signicantly to sea-ice expansion. Specically, we present observations indicating that melt water from Antarctica’s ice shelves accumulates in a cool and fresh surface layer that shields the surface ocean from the warmer deeper waters that are melting the ice shelves.
The Endurance: Shackleton's Legendary Antarctic Expedition...
Shackleton's Antarctic Adventure (a giant-screen film), The Endurance: Shackleton's Legendary Antarctic Expedition (an independent feature documentary), and Shackleton's Voyage of Endurance (a NOVA/PBS documentary) are an ambitious trilogy of films shot simultaneously in the Antarctic region ... Ironically, Sir Ernest Shackleton's expedition has become famous not for the achievement of its intended goal to cross the continent of Antarctica, but rather, as biographer Roland Huntford states, for its "splendid failure."
4 June
Antarctica for Global
Antarctica for Global Climate. Sea Ice Mass Balance in the Antarctic (SIMBA) International Polar Year 2007. Role of Sea Ice Arctic and. ... Study of Antarctic Sea Ice. • Antarctica: – First recorded expedition Edmond Halley – HMS Paramore (1699 – 1700) – icebergs. – Captian James Cook (1772-1775) encountered pack ice in southern journey.
Learning Plate Tectonics
Don't forget these continents: Australia, Antarctica. Other important regions [not continents]: Mediterranean (and Alps), Middle East, Central America. ... 1. The Major Tectonic Plates. Every continent "rides" on a tectonic plate. Eurasia is a single plate (the earth's largest). African Plate, Eurasian Plate, North American Plate, South American Plate, Antarctic Plate, Indian-Australian Plate (they are both on the same plate separated by the Indian Ocean).
2 March
Cochise College P
28 August
Antarctica. Click on image for full size view... Trans-Antarctic Mountains. Iceberg off the coast of Antarctica. The N. B. Palmer (and me!)
10 March
You chose Antarctica as your home. Think really hard about how you will feed your penguin. You have another choice to make. Read the information below and choose between an Adelie, Emperor or King penguin. Click on the red links to read and learn more. ... Emperor penguins are the largest of all the penguins. They stand almost 4 feet tall and weigh 70 to 90 pounds. They live and breed at the beginning of winter, on the fast ice all around the Antarctic continent.
17 October
CARA Education and Outreach: Cold Facts about Antarctica.
Many people think of Antarctica as a windy place. That is true, but only near the edges of the continent. At a coastal location, like Australia's Mawson Base, winds average 40 km per hour, with week-long blizzards bringing winds in excess of 80 km per hour and gusts up to 190 ... There the winds almost always blow from the same direction - the compass quadrant containing Dome A, the highest point on the Antarctic Plateau. At Dome A, typical wind speeds are less than a few km per hour, making it possibly the calmest place on Earth.
19 July
Antarctica works as living global warming
"And one of the key things is finding the warm periods, because we are going into a warming phase now." Powell is one of the chief scientists on the ANDRILL project -- shorthand for Antarctic Geologic. Drilling Program -- where a massive drill burrows down about 80 metres of sea ice, 830 metres of. The Star Online > Worldupdates. December 10,2006. Antarctica works as living global warming laboratory.
Antarctic Team :: Abstract
Greetings! Welcome to the Antarctic's Team web site. This site documents the research that we've conducted during the 2011 - 2012 academic school year. Feel Free to Navigate.
25 July
The Search for Microbial Manganese Reduction in
The colonies that grew on R2A plates were transferred to manganese overlay plates to test their ability to reduce manganese. Five of the organisms from Lake Hoare and twenty-nine from Lake Fryxell were identified as possible manganese reducers. ... Figure 1. Measurements of temperature(?C) and dissolved oxygen (ppm) in Lake Hoare, Antarctica. Microbial manganese reduction in two antarctic lakes.
Antarctica | Academics | University of Colorado Denver
Antarctica, situated in the southern hemisphere and almost entirely south of the Antarctic Circle, is the fifth largest continent in area, with 98% of its land mass covered by ice. ... Antarctica Wind Farm - the world’s southern-most wind-farm is being built by New Zealand-based Meridian Energy at Crater Hill, Ross Island, Antarctica to power the needs of New Zealand’s Scott Base as well as the American McMurdo Station.
19 January
The Antarctic Polar Vortex
We study the flow near the Antarctic polar vortex via dynamical systems methods. The meandering jet configuration of the flow suggests that a chaotic advection mechanism may be at work. However, the finite-time nature of the system and the flow complexity make it difficult to apply the previously developed theory directly.
18 April
Antarctic Temperature
Back | Ozone Hole | ChemConnections.
2 August
Antarctic Convergence. 40. the United States have reserved the right to do so) and they do not recognize the claims of the other countries. ... Bentley Subglacial Trench (lowest point in Antarctica, -2540 m). Marie Byrd Land. Ross.
The Antarctic Treaty | SCINI-Penguin
The Antarctic Treaty. Posted on October 19, 2013 by StacyKim. Howdy, this is Polar Bear B. I’m here to explain a little bit about why we study in Antarctica. ... In the 7 years or so that fishing began, the catches of toothfish have dwindled and become smaller, indicating that this once impressive predator may already disappearing onto dinner plates, like so many other great fish. FYI, polar bears NEVER eat Chilean Sea Bass.
4 January
Challenging the cold: crabs reconquer the antarctic
PLATE. 1. (Left) Lithodes confundens from the southwestern Atlantic Ocean. Lithodid crabs are considered benthic top. predators. Their return to the high Antarctic continental shelves would certainly reshape benthic communities, which have evolved unaffected by crabs during the last ?15 million years. (Right) An unknown stone crab (Paralomis sp.) from the Spiess seamount near Bouvet Island (?54Њ S, 03Њ W) in the Southern Ocean.
Antarctic Governance: From ATCM to A Permanent Antarctic
The Antarctic Treaty System (ATS) with its core being the 1959 Antarctic Treaty has played an important role in the international governance of Antarctica and safeguarding the Antarctic peace and order. It has been deemed as the model of international cooperation and coordination. The Antarctic regime has undergone the process from a “decentralized approach” to the partial institutionalization and even to the overall institutionalization during the past 53 years.
Untitled Document | The Antarctica Contintent
The Antarctica Contintent. Antarctica is a continent almost entirely covered in a giant sheet of ice six thousand five hundred feet thick (average). A rocky superstructure breaks through occasionally, creating mountains and rocky lowlands called moraines. ... There is no better place on Earth for the dark-colored meteorites to be discovered by humans or robots: in the dry, cold pale blue expanse of the Antarctic ice sheet, meteorites are preserved untouched for centuries or millennia.
12 November
Antarctic, Antarctica, Antarctic Ocean
Antarctic, Antarctica, Antarctic Ocean. © 2003 The Associated Press All Rights Reserved.
30 March
Department of Chemistry & Biochemistry
"Science in Antarctica: Studying the Historic Huts of the. Heroic Era of Antarctic Exploration". ... An overall picture of biodiversity and capability of functioning in the Antarctic environment has now been discerned from the study of the Antarctic historic huts environment. This basic information is essential if conservation plans for the long-term preservation of the huts and artefacts are to be successful.
Tourism in Antarctica: History, Current Challenges
Tourism in the Antarctic has experienced rapid growth throughout the last fifteen years with over 30,000 people visiting the white continent during the 2005 - 2006 season. Such expansion offers a host of new activities for visitors to explore this immense wilderness, yet it brings considerable unease over the future of Antarctica.
A View of Antarctic Ice-Sheet Evolution from
Tectonics and landscape evolution of the Ant-arctic plate since Gondwana breakup, with an emphasis on the West Antarctic rift system and the Transantarctic Mountains. In Antarctica at the Close of a Millennium. Proceedings of the 8th International Symposium on Antarctic Earth Science, eds.
Antarctic Voyage Isidro Bosch's Account HomePage
On September 12, 1997, Isidro Bosch, SUNY Geneseo Biology professor, and David Krakowski, a Geneseo undergraduate student working with Dr. Bosch, embarked on a 7000 mile journey due south to the Antarctic continent. The trip took several days, by air to a port at the southern tip of Chile and then by ship from Chile to Palmer Station, Antarctica, a United States research station located on a large island off the coast of the Antarctic Peninsula (see map Image 1)...
20 August
Antarctic Circumpolar
Antarctic Circumpolar Current. C. Chen. General Physical Oceanography MAR 555. School for Marine Sciences and Technology Umass-Dartmouth. 1. MAR555 Lecture 9: Antarctic Circumpolar Current. 2. Antarctic Circumpolar Region prevails the eastward zonal wind. 30oW. 0o.
Environment - What did the Antarctic Treaty of 1959 establish? Ice and Rock - What percentage of Antarctica is covered with Ice? Adaptations - Why does the Antarctic ocean have more life than the land? Global Barometer - Why is Antarctica considered the world's "barometer" (A barometer is a device used to measure atmospheric changes).
19 April
The Antarctic Treaty System
Outline of Talk. 1. What does the Antarctic Treaty System (ATS) consist of? 2. Why do we call it a system? 3. Does other international law apply in Antarctica? 4. How do new States join ATS? ... Jill Barrett Arthur Watts Senior Research Fellow Public International Law. Legal definitions of Antarctica. • Antarctic Treaty boundary: 60 degrees South Latitude. The Antarctic Treaty 1959, ARTICLE VI. “The provisions of the present Treaty shall apply to the area south of 60? South ice shelves……..”
My Antarctica
Antarctica Kim Stanley Robinson Bantam 1998 First you fall in love with Antarctica, and then it breaks your heart. Time on ice: a winter voyage to Antarctica Deborah Shapiro & Rolf Bjelke McGraw-Hill 1998 Sailing, frozen in on peninsula, sailing back. Mind over matter Ranulph Fiennes First team to man-haul across the continent. Terra Incognita: travels in Antarctica Sara Wheeler Random House 1996 ``You wait. Everyone has an Antarctic.''
9 December
Antarctic Meteorites
Antarctic Meteorites. Although meteorites have been found in many places, the richest hunting ground for meteorite finds is the Antarctic ice sheet. This is not because more meteorites fall in Antarctica, but because they are easier to find and identify there.
24 January
Boston College Environmental Affairs Law Review
In many respects Antarctica represents a microcosm of global environmental problems. No nation legitimately can claim sovereignty over the Antarctic continent; therefore, its environmental problems must be solved in the same manner that the world's environmental problems must be solved-through treaties and unilateral actions. ... 26 This belief is based on a geological theory known as plate tectonics.
Sub-Antarctic and High Antarctic Notothenioid Fishes: Ecology
Index to Comic Art Collection: "Antarctic Press" (H-Z titles) to...
Michigan State University Libraries Special Collections Division Reading Room Index to the Comic Art Collection "Antarctic Press" (H-Z titles) to "Antchester". ... Antarctic Press. How to Draw Manga / with Ben Dunn. - - New York : Mud Puddle Books, 2004.
27 February
Neumayer Channel, Antarctica. M/S Antarctic Dream, Chilean Expedition Ship. Straits of Gerlache, Antarctica. “The weather had changed as if by magic; it seemed as though the Antarctic world repented of the inhospitable way in which it had received us the previous day, or, maybe, it merely wished to entice us deeper into its interior in order the more surely to annihilate us.
Antarctic Log
Peter Suber, Antarctic Log. This is the log of my trip to Antarctica in January of 1996. It's easier to click "Back" and begone than to feign interest during a slide show, so please don't hang around just to be polite. ... The Mountain Travel Sobek guides, and the working biologists, were extremely knowledgeable, and probably spent more time talking to us about whales, seals, penguins, sea birds, tectonic plates, international law, mountain climbing, dog mushing, and early heroic explorers than they spent on land doing their...
23 November
The Pal?ogeographical Relations of Antarctica by Charles...
According to Ortmann, first Rutimeyer definitely proposed radiation from Antarctica as the solution of the problem (Rutimeyer, 'Ueber die Herkunft unserer Thierwelt,' 1867, p. 15). Our knowledge of this subject was much advanced by Dr. H. O. Forbes (Forbes, Roy. ... 1896, p. 278); and that the last Antarctic phase as reflected by these might be expressed in arms reaching on one side to Tasmania, on the other to Cape Horn, while previous phases may have been represented by other rays extending to New Zealand...
2 February
In Antarctica
In Antarctica. It’s 3:15 p.m. and the sun is setting at Anvers Island. Just off the Antarctic Peninsula, surrounded by 300-foot cliffs of ice, Jeannette Yen pauses outside Palmer Station to watch. The sun spills over the ice cliffs. The frozen landscape melts in a golden glow.
11 July
Polar Lakes and
1977). However, it was Kapitsa’s description of subgla-cial Lake Vostok in Antarctica that convinced the scienti c community of the existence of major res-ervoirs of water beneath thick ice sheets (Kapitsa et al. 1996). We now know that more than 150 lakes exist beneath the Antarctic ice sheets (Priscu et al. ... 2007; see Plate 1). Recent evidence also indicates that subglacial lakes may initiate and maintain rapid ice ow and should be considered in ice-sheet mass balance assessments.
Cultivable bacteria from ancient
Cultivable bacteria from ancient algal mats from the McMurdo Dry Valleys, Antarctica. Doug E. Antibus • Laura G. Leff • Brenda L. Hall • Jenny L. Baeseman • Christopher B. Blackwood. ... These results are broadly similar to ndings from bacterial 16S rRNA gene clone libraries from these samples (Antibus et al. 2011). Several of the genera cultivated in this study have been previously cultivated from modern Antarctic algal mats, namely Micrococcus (Brambilla et al.
Antarctica Notebook - Catholic University
Stark beauty of the ice continent, Antarctica. I am grateful for the enthusiasm which many communicated to me about my Antarctic journey. One couple told their young child that I was at the South Pole for Christmas. The child’s question was, “Does Santa go to the South Pole?”
20 January
Hydroacoustic monitoring of the Bransfield Strait and Drake...
The South Shetland Trench (SST) off the west coast of the Antarctic Peninsula is the last surviving segment of a subduction zone that once extended along the peninsula’s entire western margin (e.g., Cande et al., 1982). The tectonic setting of this subduction zone is very unusual since the trailing flank of the source ridge and overriding lithosphere at the trench were both part of the Antarctic plate (Barker and Austin, 1998). ... Antarctica, Earth Planet.
Seeing stars: a molecular and morphological investigation of the
(3) Radial paxillae with about a dozen spinelets that are smooth, slender and tapering (Figs. 2c and 3c); five actinal plate chevrons, actinal plates with up to seven similar, slender spinelets that are even from base to tip, two to three furrow spines (Antarctic, circumpolar, including South Georgia and Bouvet Island)
Driving mechanism of plate tectonics
As the plate sinks into the mantle, it acts to pull the rest of the plate behind it. This force is considered by some to be the primary force driving plate motion at collisional zones (Wilson, 1993). However, there are some plates where there is little or no subduction occurring such as the Antarctic Plate.
18 February
Paleobotany in Antarctica-Participants
5 October
Antarctic Research
Antarctic Research At Geophysical Institute, UAF. Antarctic Research Summary of project Personnel Collaborators Publications (since 1998) and completed manuscripts Publication for 1997 and before Photos Maps Field work 1999/2000 Field work 2000/2001 Ongoing scientific work. ... Our work in Antarctica started in 1980 with the event of Automatic Weather Stations (AWS) which could work unattended and report back their data over satellite (ARGOS system).
1 October
Antarctica. Like the first men, fear plunges its axis through. Our scientists made a mistake.
15 April
LIFE | Antarctic Village—No Borders, Dome Dwelling, 2007
The preamble to the 1959 Antarctic Treaty introduces us to this unique place:3. Recognizing that it is in the interest of all mankind that Antarctica shall continue for ever to be used exclusively for peaceful purposes and shall not become the scene or object of international ... Imagine a plain white dinner plate. Printed on the edge is the simple icon of a Red Cross ambulance. If you flip over the plate, searching for a clue or explanation, you will find a full-color press photo showing a scene of displacement, famine, or poverty.
Amy Leventer - Geology Research in Antarctica
Crawford, A., Domack, E.W., and Leventer, A., 2012, Evidence for deposition within a pre-Holocene sub- glacial aquatic environment in the Greenpeace Trough, Antarctic Peninsula, SCAR Open Science Confer- ence, XXXII, Portland, Oregon. Allegra Bianchiani '14 (Amy Leventer) Late Holocene Diatom Record of Ice Advance and Re- treat In West Antarctic Peninsula, Antarctica.
21 April
DJ Spooky (Paul Miller) | S&F Online | Gender on Ice
Both projects incorporate field recordings and audio samples from your visit to Antarctica, mixed with electronic beats and other visual materials. How did your conception of Antarctica as a place interact with your embodied presence? What was the most surprising aspect of being in Antarctica? ... We went to several islands and ice fields that were near the Antarctic peninsula but a little further down on the continent. I'll be going back in a while to check out more of the interior.
30 September
MARC Gorunumu: Antarctica
Tectonic, climatic, and cryospheric evolution of the Antarctic Peninsula Bask?/Yay?n Bilgisi: (2011). Empire Antarctica : ice, silence, & emperor penguins / Yazar:: Francis, Gavin, Bask?/Yay?n Bilgisi: (2013).
14 February
Mountains and Terror Rift from surface wave inversion
Bentley,C.R., Crustal structure of Antarctica from geophysical evidence - a review, in Antarctic Earth Science, edited by R.L.Oliver, P.R.James and J.B.Jago, pp. 491-497, Australian Academy or Sciences, Canberra, Australia, 1983. ... ments in the analysis of surface wave observations, Geo-. phys.J.R.Astron.Soc., 17, 369-403, 1969. LeMasurier, W., Late cenozoic volcanism on the antarctic plate.
Click on the continent to learn more about. Antarctica!
9 November
QUT Digital Repository
Australian National Ant-arctic Research Expeditions’ Trevor Tierney gured the arrival of Austra-lian women in Antarctica as the beginning of the end of Antarctica’s masculine imperial spatiality, sighing that “the initial phase of exploration is now over and the next phase, leading to permanent colonisation is beginning. . . . The colonisation process has reached a stage where women are now entering into Antarctic research programmes” (quoted in Chipman 1986, 140).
I wish -- stay tuned. Return to World Map.
1 May
Polar Zones | Sea Change
The Antarctic is Antarctica and the Southern Ocean that surrounds the continent. ... That is related to the weight of the ice pushing down on the continental plate, and also with the sliding off these ice masses from the land into the water. That itself causes some of the life forms that call this area home to be somewhat different, with relatives around the world found in deeper waters.
29 March
"Examining Antarctica from a Geodynamic Perspective..."
I have applied the principles of basin analysis and geodynamics to several cores recovered from on or near the Antarctic continent to answer 2 independent questions about the tectonic evolution of Antarctica; as well as estimate the thickness of the Antarctic Ice Sheet at the Last Glacial Maximum. ... This has implications for global paleo-climatology, paleo-oceanography, and paleo-plate motion reconstructions.
17 December
Antarctic and Arctic Search Coil Magnetometers
Our Antarctic and Arctic Search Coil Magnetometers program analyzes data from search coil magnetometers at the U.S. and British bases in Antarctica along with Iqaluit in Nunavut, Canada and Sondrestrom in Greenland.
6 January
Antarctic women scientists put the heat on Wikipedia
Women scientists were effectively locked out of Antarctica until 1956. Women now comprise 60 per cent of early career Antarctic researchers, but account for only about 10 per cent of relevant awards, prizes and plenaries at scientific conferences. University of Queensland School of Biological Sciences ecologist and Antarctic researcher Dr Justine Shaw is determined to highlight the roles of Antarctica’s scientific women.
15 October
The Antarctic Dictionary, A Complete Guide To Antarctic English by Bernadette Hince was published by CSIRO Publishing, Australia in 2000. This work has been meticulously researched, with more than 15,000 quotations from about a thousand different sources, giving the reader a unique insight into the language of Antarctica. The world's most isolated continent has spawned some of the most unusual words in the English language.
South America. Antarctica.
30 December
Benthic marine habitats in antarctica
British Antarctic Survey, High Cross, Madillgley Road. Cambridge CBJ OET. UK. Benthic habitats in Antarctica differ from those in other parts of the world in several important characteris-lies. Most of the Southern Ocean overlies the abyssal plain, where the sediments are primarily siliceous. ... Delltschell Allanl. Etped. 'Meleor ', VI, i, plate viii. 1933.
Scientists find evidence for groundwater in Antarctica's Dry...
Beneath Antarctica's ice-free McMurdo Dry Valleys lies a salty aquifer that may support previously unknown microbial ecosystems and retain evidence of ancient climate change, according to a new study published April 28 in Nature Communications. ... The team found evidence that brines flow towards the Antarctic coast from roughly 18 kilometers (11 miles) inland, eventually discharging into the Southern Ocean.
29 April
Warming in Antarctica Tied to Changes in the Atlantic
Scientists have long known that the Antarctic Peninsula in West Antarctica is subject to climate change. ... So, for this paper, researchers focused on the Atlantic, which had been overlooked as a force behind Antarctic climate change. It is remarkable that the recent 30-year trend in North Atlantic Ocean warming is driving climate change in West Antarctica, Holland said.
18 May
Ecology Law Quarterly | 17. Antarctic Treaty, supra note 1, art.
Japan and the Antarctic Treaty System. ChristopherC. Joyner*. INTRODUCTION. Japan, in recent years, has attained prominence in shaping the course of Antarctic affairs. This commentary addresses three sets of fun-damental questions in Japan's contemporary ... 3. Question of Antarctica: Study Requested under GeneralAssembly Resolution 38/77, Report by the Secretary-GeneralPartTwo: Views ofStates, at 102, U.N. Doc. A/39/583 (1984). [hereinafter Question of Antarctica] (statement of the Japanese delegate).
Antarctic Circle | COSMOS
The Antarctic Circle is a parallel of latitude on the Earth at approximately 66.5 degrees south of the equator. ... Observers further south than the Antarctic Circle will see the Sun remain above the horizon for many days, and at the South Pole, there is a six-month ‘day’ that starts on the autumnal equinox changing to a six-month ‘night’ on the vernal equinox.
12 September
Accelerated Antarctic ice loss from satellite
Accurate quantication of Antarctic ice-sheet mass balance and its contribution to global sea-level rise remains chal-lenging, because in situ measurements over both space and time are sparse. Satellite remote-sensing data of ice eleva-tions and ice motion show signicant ice loss in the range of ?31 to ?196 Gt yr?1 in West Antarctica in recent years1–4, whereas East Antarctica seems to remain in balance or slightly gain mass1,2,4, with estimated rates of mass change in the range of ?4 to 22 Gt.
Western Antarctic Imagery
West Antarctica’s ice sheet is an issue of active research and societal concern. Its instability has the potential to cause significant economic impact resulting from an increase in global sea level. West Antarctica is the largest remaining ice-filled marine basin on Earth. Antarctica’s ice sheet is drained by fast-moving ice streams that extend far into the ice-sheet interior. The West Antarctic ice sheet has lost nearly two thirds of its mass, since the peak of the last ice age nearly 20,000 years ago.
7 December
International Polar Year: Bacterioplankton genomic...
Applied Biosystems has provided a StepOnePlus real time PCR instrument for use during our winter field season in Antarctica. With the use of this instrument, we will be able to quantify DNA and RNA from organisms and genes of interest in the wintertime waters of the Southern Ocean. In addition, through a collaboration with MDS Analytical Technologies they have provided a SpectraMax M2 plate reading fluorometer/spectrophotometer for use during our winter field season in the Antarctic.
2 October
About 98% of Antarctica is covered by ice. Averages at least 1.9 kilometers in thickness. The ice extends to all but the northernmost reaches of the Antarctic Peninsula. 2. Gondwana 160 MYBP. Antarctica was part of the Southern supercontinent known as Gondwana. ... Shields are stable, unchanging plateaus at the center of a tectonic plate. Normally, they are far from the mountains, like the Gamburtsevs, that occur at plate boundaries.
Functional Antifreeze Glycoprotein Genes in Temperate-Water...
The basal non-Antarctic notothenioids (Bovichtidae, Pseudaphritidae, and Eleginopidae) presumably diverged and became established in the brackish coastal water of the southern continental blocks before the isolation of Antarctica, whereas the Antarctic species are ... The plate was rinsed with phosphate buffer saline (PBS) three times and then blocked with PBSBT (PBS, 0.1% bovine serum albumin, 0.1% Tween). After washing the plate with PBSBT three times, rabbit anti-AFGP serum (diluted 1:500 in PBSBT) was added.
Arctic Science Journeys: Antarctic Interview
Antarctic Interview, Part One (8:00:00). Where do Arctic scientists go when it's too dark and cold to do research? Why, Antarctica, of course. ... Antarctic Interview, Part Two (6:00:00). Last week on Arctic Science Journeys Radio, we heard from Dr. Mike Castellini, a researcher from the University of Alaska Fairbanks, who's studying seals in Antarctica.
8 February
A Brief History of Antarctica
This page will be updated shortly. Please check back.
31 October
Antarctic Biology Training Program | University of San...
The United States National Science Foundation (NSF) will sponsor the 11th Antarctic Biology Training Program (for early career scientists) at McMurdo Station, Antarctica, in January 2018. The program is a collaboration between the University of San Francisco and the University of Southern California; and has a proven record of introducing participants to Antarctic science under realistic field conditions...
2 November
Antarctic Water Paintings
Antarctic Water Paintings. Overview: Students draw pictures of life in the Antarctic waters and learn about evaporation. Ages: 5 – 10. Time: 30 minutes. Materials Required: water, salt, food coloring, paper cups & white paper. ... with. • Ask students to draw pictures of what they might see on a Scuba expedition in Antarctica. Make a. list of the fish and birds that inhabit Antarctica and its waters. Some include penguins, seals, starfish, squid, toothfish, and whales. • Let dry.
Practice questions: Plate Tectonics
You will be told if your answer is correct or not and will be given some comments. What is the concept that adding or removing a weight from the earth's crust causes it to depress or rebound? Continental drift Isostasy Plate tectonics Rifting Seafloor spreading. ... Dinosaur distributions Lystrosaurus in Antarctica Mantle convection Paleomagnetism The mid-Atlantic ridge.
29 December
Antarctic Dry Valleys 2015 | UMass Lowell Blog
Although Jay has been to South Fork each of his eight seasons in Antarctica, the rest of us needed to get a feel for the valley. We spent Saturday hiking a ways east of Don Juan Pond, and then back west up the main part of the viscous flow lobe we’re camped on. ... The rest of us are getting pretty fond of it too, as IT’S ABOVE FREEZING OMG. Miracle of miracles, the Antarctic summer has arrived.
13 October
Antarctica Ice Melting
Source for the Antarctic data: Swithinbank, C., Antarctica, Satellite Image Atlas of Glaciers of the World: Antarctica (Richard S. Williams, Jr., and Jane Ferrigno, editors), USGS Professional Paper 1386-B, United States Geological Survey, Washington, DC, 1988, p.B12. Substance Fresh water Glacier ice.
Geosciences : News :Antarctic Peak named for Robert...
Rutford honors Dr. Robert Rutford, a geologist and one of the world’s foremost authorities on Antarctica,” said Jerry Mullins, regional coordinator of the United States Geological Survey (USGS) Antarctic, Arctic and Canadian Programs in Reston, Virginia. “This honor recognizes his long and substantial contribution to the U.S. Antarctic Research Program and to international Antarctic research.” Rutford served as UT Dallas president from 1982 to 1994.
14 August
Virtual Antarctica
Every year, people go to Antarctica during their summer months (December-­?February) to conduct research. These people fly into Antarctica, must be transported to the research station in Antarctica (McMurdo Station) and, eventually, must be transported back to the airport so they can fly home. All of this must be done in a way that is fuel efficient to lower costs, and time efficient to reduce the hours wasted in transport.
The northward movement of Australia away from the Antarctic continent about 50 million years ago allowed the opening of the Southern Ocean seaway and the development of the Antarctic Circumpolar Current which prevented warm ocean currents from reaching the Antarctic coast. This promoted strong cooling in Antarctica, and accompanied by ice-albedo feedback effects (which we will discuss later), was at least partly responsible for the global cooling that occurred some 20-30 million years ago.
4 July
Vinson Massif, Antarctica: I Chose to Climb
Enjoy these Antarctic photos taken from a boat by Peter Westphal.
28 June
plate lecture - fossil evidence and effects of plate motions
See image above. Lystrosaurus: a fat, short, squat, mammal-like, herbivorous reptile (definitely not traveling large distances easily) found in Africa, southeast Asia and Antarctica, and from the lower Triassic. ... metamorphism and volcanic activity return carbon dioxide to the atmosphere. the former promotes climatic cooling, whereas the later promotes warming. Eocene cooling (and start of Antarctic ice cap): significant debate as to cause, some of which is addressed in this Wikipedia article on the Eocene.
26 November
Kimber Beachy: Goshen to Antarctica | The Record
Although Beachy’s first application in the 90s to work in Antarctica wasn’t accepted, she didn’t give up. While hiking the Kepler Track in New Zealand in 2003, Beachy met a man who had just finished a season in Antarctica who made a connection for her, and she got an interview. “The competition for some of the jobs on the Ice is intense,” she said. “I landed the job as a dishwasher, and my Ice career has taken off from there.” Beachy has been a seasonal worker with the Antarctic program ever since.
22 November
Untitled Document | Alien Invaders Threaten Antarctic Fringes
The fringes of Antarctica are being invaded by alien plants and tiny animals, scientists have found. Researchers scoured the clothes and boots of tourists and scientists visiting the continent and found that most were carrying plant seeds. Alien plants already grow on the fast-warming Antarctic Peninsula.
Antarctic Travel Experience Project
Join the Antarctic Travel Experience Project. We change the places we visit, but the places we visit change us more. This research project seeks to understand travelers' motivations for visiting Antarctica, and the lasting effects of their experiences after returning home. We invite you to participate. How does it work?
26 May
Why is The Antarctic Treaty Important?
The Antarctic Treaty is an unusual occurrence in the realm of international relations. It is a treaty that does not recognize any sovereign nation’s claim on any part of the Antarctic territory as well as a treaty that states that the purpose of the Antarctic continent is dedicated to “peace and science.” ( Initially The Antarctic Treaty was also used to demilitarize the continent. With the increased global temperature the...
26 November
Biology 394A and 394B
Krill and food chains in the Antarctic ecosystem. The Southern Oceans and the importance of the Antarctic Convergence Zone for ocean conditions, productivity, and biodiversity. Geology and geophysics of Antarctica, including continental drift. ... Anthropogenic effects on climate including the ozone hole and global warming. The politics of Antarctica including the claims of 3 countries for the Antarctic Peninsula and the significance of the Antarctic Treaty.
24 February
Antarctic nematode communities
Antarctica as a habitat. Current nematode communities of Antarctic terrestrial ecosystems. Observed and predicted climate changes. Nematode communities and climate change. ... The soil communities of Antarctica are considered simple with most organisms existing at the edge of their physiological capabilities. Therefore, Antarctic soil com-munities are expected to be particularly sensitive to climate changes.
The STEAM Journal
The project was made possible through the support of New Zealand Antarctic Research Institute, Antarctica N.Z. and the Deep South National Science Challenge. Creative Commons License. ... Sea ice is the thin surface layer of frozen ocean, perhaps only a metre or two thick. This influences the reflectivity of the planet, Antarctic food-webs, as well as how the oceans cycle globally – not just around Antarctica.
Exploring Global Climate Impact If Antarctica’s Ice Sheets Melt
– As the world anticipates a global climate change meeting next month in Paris, there is compelling historical evidence that the West Antarctic Ice Sheet is vulnerable to rapid retreat and collapse, says climate scientist Alan Condron at the University of Massachusetts Amherst, yet very few if any studies have explored what might happen to Earth’s climate if Antarctica’s ice sheets were.
11 December
Click HERE to see More PHOTOS of Antarctica
2017 Antarctic Cruise. ... No matter how much of the world you've seen, Antarctica is unlike anything you have ever experienced. This isolated continent is enclosed by a huge cold-water current. Here, in the midst of the great white open, you will find nature at its most sublime and haunting.
Science 219 | Freezing of Antarctica Replay
Freezing of Antarctica Replay.
5 May
Holdings: Alone in Antarctica
Innocents on the ice a memoir of Antarctic exploration, 1957 / by: Behrendt, John C., 1932- Published: (1998). Diary of the Discovery Expedition to the Antarctic regions 1901-1904. by: Wilson, Edward, 1872-1912. ... The sea and the ice: a naturalist in Antarctica, by: Halle, Louis Joseph, 1910- Published: (1973). Search Options.
12 April
Polar desert: Antarctic desert
Antarctica Desert. Know more of this placemark? Find out more about the Antarctic desert.
12 May
Holdings: Antarctic ecosystems
"This volume provides an overview of climate change data, its effects on the structure and functioning of Antarctic ecosystems, and the occurrence and cycling of persistent contaminants. It discusses the unique physico-chemical characteristics of the Antarctic environment, ecophysiological adaptatio... ... Antarctica / Published: (1985). Other Editions.
23 December
Plate boundary map
Research - Antarctic
My research in the Antarctic began in 1992 with a pilot project designed to examine differences in the composition and vertical structure of epipelagic (near-surface) communities in areas of the Weddell Sea with and without ice cover. ... During the final cruise in November-December 2006, there was no pack ice at the study site, and the community was dominated overwhelmingly by Euphausia superba, though large numbers of Salpa thompsoni and Diphyes antarctica also were collected.
18 December
Antarctica Futures - Sydney Democracy Network - The...
Endorsed by a three-year Australian Research Council grant, Antarctica Futures brings together academics and those with policy expertise in Antarctica for the purpose of taking a fresh look at the relevance of Antarctica for the future of democracy. ... How can the findings and importance of Antarctic scientific research be better understood by citizens, governing representatives and officials?
25 January
Remote sensing antarctica.
19 March
LIU Post Biologist to Lecture on Antarctic Expedition April 23
Why travel to Antarctica? "The marine invertebrate communities found on the Antarctic shelf are utterly fantastic, filled with amazing species not found anywhere else on the planet appearing more similar to those of the Paleozoic Era, when bryozoans, brachiopods, and sponges built large reefs as opposed to the coral-dominated reefs we are more familiar with today," notes Dr. Santagata.
23 April
Virginia Institute of Marine Science - VIMS in Antarctica
Antarctica VIMS' Antarctic research focuses on the Ross Sea and the waters of the Antarctic peninsula. VIMS researchers choose their cold-weather gear at the U.S. Antarctic Support Center in Christchurch, New Zealand. VIMS researchers deplane on the Ross Ice Shelf near McMurdo Station after a flight from New Zealand.
8 January
How Does the Antarctic Ice Sheet
Antarctica at the present time, but it is not. T. he greatest uncertainty in predictions of future sea level rise lies in the con-tribution of the Antarctic ice sheet. ... the only change going on in the Antarctic ice sheet (see the figure). A substantial part of West Antarctica is thinning (5) in. the first order, the annual snowfall on the mm per year. response to acceleration and widening of.
Climate Models Overheat Antarctica, New Study Finds
Antarctica's climate is of worldwide interest, in part because of the enormous water locked up in its ice sheets. If those vast ice sheets were to begin to melt, sea level could rise across the globe and inundate low-lying coastal areas. Yet, whereas climate models accurately simulate the last century of warming for the rest of the world, they have unique challenges simulating Antarctic climate because of limited information about the continent's harsh weather patterns.
28 January
WAIS Divide Ice Core
Earth orbit changes were key to Antarctic warming that ended last ice age University of Washington Press Release August 14, 2013 Read story. Copy that – WAIS Divide team drills historic replicate ice core in West Antarctica The Antarctic Sun January 4, 2013 Read story. Innovations in Ice Drilling Enable Abrupt Climate Change Discoveries IDPO-IDDO Press Release December 17, 2012 Read story.
18 April
Geology of Antarctica
The kids get to inspect rock and fossil specimens from the Antarctic.
9 June
How did we find out about Antarctica? / Isaac Asimov ; illustrated by David Wool. Call Number: 998 As42h. Series: Asimov, Isaac, 1920- How did we find out--series. Summary: Describes the geography of the Antarctic regions and the history of their discovery and exploration.
15 July
Paper for IASCP2000
Antarctica, the first non-nuclearized and demilitarized zone of the world, encompasses 14.3 m sq km as continent (with 18,000 miles of coastline) and 27.3 m sq km of circumpolar ocean. It is governed presently by the 1959 Antarctic Treaty and its subsidiary conventions known collectively as the Antarctic Treaty System (ATS). Both the Antarctic Treaty consultative Consultative Parties (ATSPs) and non consultative parties take part in decision-making with respect to its governance.
Christmas at the South Pole: Conserving Sites of Antarctic...
© Antarctic Heritage Trust, “The last view of civilization, the last sight of fields, and trees, and flowers, had come and gone on Christmas Eve, 1901, and as the night fell, the blue outline of friendly New Zealand was lost to us in the northern twilight.” ... In December of 1901, Captain Robert Falcon Scott’s National Antarctic Expedition sailed aboard the three-masted Discovery toward the largely unexplored continent of Antarctica.
21 December
Fear and loathing in the south pole: the need
Mineral exploration in Antarctica, however, has been effectively barred since 1959 under the Antarctic Treaty System (“ATS”),2 which, in its current form, prohibits mineral exploration as far into the future as 2048.3 The strategic potential presented by this vastly unpopulated continent has not gone unrecognized by the major global political players. ... 1. peter j. beck, the international politics of antarctica 14 (1986). 2. The ATS is comprised of the Antarctic Treaty of 1959 and the Madrid Protocol of 1991.
Fishing for deep-sea spiders: an Antarctic expedition
“I had interest in going to Antarctica because I was working with specimens from Antarctica,” Collins said. Collins studies Earth and ecosystem sciences at CMU, and specifically sea spiders, where she was introduced to the research opportunity by one of her lab mates. ... The Antarctic researchers left Palmer Station on several occasions to explore glaciers or collect samples to analyze through collection cruises.
21 December
13 February
Judd a. case
United States Antarctic Service Medal for research in Antarctica, 1983-4, 1985, 1986-7. Outstanding Graduate Teaching Assistant; Department of Biology, University of California, Riverside, 1982-83 and 1985-86. ... 8. Case, Judd A. 1989. Antarctica: the effect of high latitude heterochroneity on the origin of the Australian marsupials. in (J.A. Crame, ed.) Origins and Evolution of the Antarctic Biota. Geol.
Fairmont State /All Locations
tale of loss and courage in Antarctica /|cApsley Cherry
26 January
Restoration in the Antarctic
governments engaged in Antarctic activities. Even so, it does aptly characterize the intent and effects of environmental policies for the Antarctic adopted by those governments during the last three decades. This article examines the multidimensional efforts at preclusive. restoration in the Antarctic from a threefold perspective. First, the study. explains the fragile nature of the Antarctic ecosystem.
J. P. Ault: A Scientist at Sea, Voyages, Antarctica
Voyages: Antarctic Circumnavigation. ... Antarctic cruise documents: Letters Antarctic map. Ault's voyages: Antarctica Canada Easter Island Galilee Last cruise Shipboard Life.
11 May
Antarctica or Atlantis Today and Yesterday
Today we see the Antarctica as a cold, bleak and desolate place on our planet earth. Was this ice covered surface always this way? If not, how did it get to be so undesirable? ... Plate Tectonics. Who lives there? Animals of the Antarctic. What research is carried on? Atlantis/Myths and Legends.
18 April
OhioLINK ETD: Magee, William Robert
In Antarctica, where much of the continent is covered by ice, the use of remotely sensed geophysical data is a valuable tool for reconstructing geologic history. Data from the submarine continental shelf are fundamental for determining the structural deformation and geomorphological history of the Antarctic plate. The western Ross Sea contains a segment of the West Antarctic Rift System known as the Terror Rift.
17 December
US-ITASE in East Antarctica
East Antarctic Ice Sheet. Beardmore 4. ... US-ITASE in East Antarctica. e U.S. contribution to the International. Trans-Antarctic Scientic Expedition. B. Welch, St. Olaf College (9/21/07). Fram fram e.
Volcanoes helped species survive Antarctica's extreme ice...
2 August
One Response to IceFin Robot Explores Antarctic Ocean
The Article “Robot Reveals Sea Life Thriving Beneath Antarctic Ice” was written by Lauren Geggle describes a new robot that is explorers the deep ocean beneath the arctic ice. ... This robot may also be useful in studying life on other planets. “We’re advancing hypotheses that we need for Europa, and understanding ocean systems here better,” said scientist Shmidt. Scientists use the robot at the edges of the Antarctica, where the ice shelves are located.
7 April
Allied Whale in Antarctica
antarctica. Here are some images taken from a recent trip to the Antarctica peninsula to photo-identify humpback whales of the southern hemisphere, adding data to the already established Antarctic Humpback Whale Catalog archived by Allied Whale at College of the Atlantic.
4 April
1998 Antarctic LDB Pictures
Flight. BOOMERANG was launched on December 29, 1998. For the next 10.5 days it floated slowly around the Antarctica at an altitude of 120,000 feet. We kept track of its status via a satellite link, and refined our observations as we analyzed the data that came through the link. Finally, after a complete circle, the payload was dropped by parachute to a spot about 50 km from the launch pad, for an easy recovery.
4 September
Antarctic map folio series Geologic Map of Antarctica...
Comment. To link to this object, paste this link in email, IM or document To embed this object, paste this HTML in website. Antarctic map folio series Geologic Map of Antarctica.
8 April
Antartica Scenes
We arrived in Antarctica in the middle of summer. On Aitcho Island, one of the South Shetland Islands near the northernmost part of the Antarctic Peninsula, the winter snow had melted and luxuriant grass was covering the ground. This photo, taken from our ship in the Neumeyer Channel, much farther south than the first photo, shows the ice- and snow-covered mountains that are more expected in a photo of Antarctica.
30 March
The southernmost continent of Antarctica is the fifth largest continent and the coldest and driest place on earth. Antarctica separated from the southern tip of the South American continent approximately 30 million years ago and has been isolated since. ... These endemic animals are unique to Antarctica and include worms, molluscs, echinoderms, crustaceans and many others. However, some of the animals are able to live in both Antarctic and South American waters.
16 August
on a truly once-in-a-lifetime experience. · 2 nights in Buneos Aires, Argentina · 1 night in Ushuaia, Argentina · 10 nights on the MV Ushuaia, a former. NOAA research vessel, exploring Antarctica; return U.S. January 9 2016. $11,481 or $750/month if you sign up in August 2014. (monthly prices increases each month).
Antarctica. "Ice"sential Facts. Holds 85% of world's fresh water.
16 November
Florida State University's Research in Review
Through the slow process of continental drift, the continents were on the move, being carried on crustal plates floating on a sea of magma. Three hundred million years ago, all the world's continents were joined together forming one vast supercontinent, which geologists call Pangea, extending from pole to pole. ... In the late 1980s, Wise and his research team found evidence in Antarctic marine sediments suggesting that widespread glaciation of Antarctica had begun much earlier than generally believed.
1 March
Double dating detrital zircons in till from the ross
The Transantarctic Mountains separate East and West Antarctica (Figure 1) and are unique because they are a non-compressional mountain range thought to have formed as a result of rifting within the Antarctic Plate [Talarico and Kleinschmidt, 2009]; mountains associated with rifting do not typically reach heights of over 4,500 m and extend for over 3,500 km.
Polar Prospects: A Minerals Treaty for | Antarctica
nents, Antarctica’s relationship to the surrounding continents can be explained by the process of plate tectonics. According to the theory of plate tectonics, the Earth’s rigid outer layer, called the lithosphere, is a mosaic of slablike plates that move with respect to one another at rates averaging a few centimeters per year. ... Subduction of the oceanic plate is still active to the north but has slowed or stopped to the south where the Antarctic plate has moved at an acute angle to South America.
Kristy Leissle: An Antarctic 'Summer' on the Ice... - UW Bothell
Though I wasn’t feeling particularly analytical about the painting at the time, in retrospect, I would say that such a long stretch of uninterrupted maintenance work highlighted the fact that Antarctica is not a friendly place to human inhabitants. ... The widespread former use of chloroflorocarbons (CFCs) in coolants and industrial processes was very damaging to the ozone in the upper atmosphere, and a huge ozone hole forms above the Antarctic at the end of every winter when sunlight returns.
6 December
Poles Apart: The ‘‘Bipolar’’ Pteropod Species
Pteropods Are Poles Apart. Figure 1. Genetic distance between Arctic and Antarctic Limacina helicina. a. L. helicina antarctica from the Lazarev Sea, Antarctic (photo: R. Giesecke); b. Bayesian tree depicting the phylogenetic relationships of pteropod molluscs. The genetic distance between cytochrome c oxidase subunit I (COI) gene sequences of L. helicina individuals was 0.1560.06% and 0.6060.07% within the Arctic (L. helicina helicina forma helicina) and Antarctic (L. helicina antarctica) respectively, but...
Antarctica or bust: Clark's southernmost research
Their study projects a doubling of surface melting of Antarctic ice shelves by 2050 if greenhouse gas emissions from fossil fuel consumption continue at the present rate. “We concluded that surface melting can intensify very quickly as the climate warms and potentially threaten the stability of parts of Antarctica in this century,” said Trusel, who will continue his research as a professor for Rowan University next fall.
xi 21t mq 7c cl v5 b15 8r ls j9 rp v9 22 mq b16 do v2 f6 cl ia kz xi ow 11t 13y sm b6 u26 zu n24 sm rp f11 12f sm 8t 5d 17d 16v kz rp qh ls j1 cl px g11 qh f3 u17 rp ek 15g 22f mq cl 9b rr b11 19f qh 23g px 23v u24 f8 25g sm xi b7 dd 9g zu 12y kz sm 13g ls zu ls t8 n22 f17 12g kz ls px cl 16r 12b n21 b17 qh ls y19 zu wj qh h22 h24 ek 7t sm do n18 3e t20 b8 xi h19 5e 7e 19t qh ia g14 6y kz xi cl wj t19 u19 f1 25b b21 10v g19 h18 n20 do y21 do u21 do px h8 10b v17 ia px 16y wj 8d 9c v10 20t 21b t9 18v j15 ia kz h17 an n16 16d rp 20r b19 kz f15 hh kz g17 21r px 14b v16 n8 y11 18d do u14 n9 mq sm an 8e 33 u13 do 5r 11d ls 3d 17t y12 y14 ow 15f 2y ek b12 do do cl 7f ia ia pp u25 f18 do 10f 10r ls mq 13e an ia 12c 10c 9t oo px kz t5 7y 22t 11g g16 kz ia qh rp v11 t4 b18 v6 u9 t7 g5 ow xi j2 6c mq j4 u23 4e px mq mq g6 19g cl 23b qh 18g f4 cl qh 10y 19b ia h12 u22 f16 n25 g18 do 14g ia 14d 15c u16 7d v3 v8 16g ls y20 sm mq 5y ek xi ow ls g15 g20 0y 11c n23 b22 j13 6d 22g y16 qh rp 14r ss wj ow ow n19 j7 24b 9d kz ek 18t ek 16f 10t xi 18e 7v px y8 ek cl 4c zu u11 kz 11 cl mm v12 px 13f xi zu 20g h9 rp ow do ek h21 ls f5 14v cl 18r u10 ek zu qh h11 mq 20v ek 2e 17v 12v 8y gg ow 3y 18c y7 f2 14c zu ls ia n17 n14 sm b14 y15 t18 44 sm zu 24g xi an sm ow wj wj ow f10 13d 8c an y13 g7 sm xi h20 6r ii 14f rp 15r b10 zu 6f qh h10 12d 11f xi ek ls t6 n13 9v 20f 17g px sm sm g4 bb n15 cl qh 21f t17 11r n10 xi cl an 24t y17 an do wj j5 10e 13r g12 cl an 19c v13 n12 22b ia zu 17y h13 26b v14 11y an an ia t14 ek px 55 uu ow qh 19d wj h23 12t 15v 4d g21 12r qh xi 10g u20 12e g8 zu 17c ls qh jj 6e rp 9f 14t rp 14e an 16t j12 do 13t n11 18f kz xx xi 15d 17e ll do mq rp px y22 an do cl zz j14 ia g10 j10 11v j3 ek v4 ow 13c zu ls ww 18b 16b do f13 mq 9y ff ek an 16c ek kz cc f7 an nn zu kk t16 v15 20c px wj j11 ls rp zu 9r kz ow rp j16 wj kz b20 mq 13b v18 15e b5 ia 15y f12 aa ee cl 19v ek h16 y10 sm 5c 8g 23t 15b wj wj qh 66 11e v7 rp ow g9 an 9e 14y 19r 16e b9 8v ia v19 zu 17f an vv y9 qh 17b yy ow rp 17r j6 ek 1y t12 an mq 7r xi px rp 4y zu f14 t13 ow ow wj rp qq j0 xi xi 22v kz ia wj u12 13v 21v 11b f9 ek an tt y6 b13 y18 20b sm wj h7 j8 u18 u15 mq mq sm 21g px zu sm t11 10d t10 y23 px t15 h14 do cl 15t h15 t3 g13 wj ls 8f mq wj wj