An 800-year ultraviolet radiation record inferred from sedimentary pigments in the Ross Sea area, East Antarctica

Boreas ◽  
2015 ◽  
Vol 44 (4) ◽  
pp. 693-705 ◽  
Author(s):  
Qianqian Chen ◽  
Yaguang Nie ◽  
Xiaodong Liu ◽  
Liqiang Xu ◽  
Steven D. Emslie
Keyword(s):  
Ultraviolet Radiation ◽  
Ross Sea ◽  
East Antarctica ◽  
Sedimentary Pigments ◽  
Sea Area

Evidence of calcium carbonates in coastal (Talos Dome and Ross Sea area) East Antarctica snow and firn: Environmental and climatic implications

2008 ◽  
Vol 271 (1-4) ◽  
pp. 43-52 ◽  
Author(s):  
M. Sala ◽  
B. Delmonte ◽  
M. Frezzotti ◽  
M. Proposito ◽  
C. Scarchilli ◽  
...  
Keyword(s):  
Ross Sea ◽  
East Antarctica ◽  
Calcium Carbonates ◽  
Sea Area

Palaeomagnetic results from the middle Tertiary Meander Intrusives of northern Victoria Land, East Antarctica

1996 ◽  
Vol 8 (1) ◽  
pp. 61-72 ◽  
Author(s):  
Elena Belluso ◽  
Roberto Lanza
Keyword(s):  
Remanent Magnetization ◽  
Ross Sea ◽  
East Antarctica ◽  
Magnetic Mineralogy ◽  
Tilt Correction ◽  
Palaeomagnetic Data ◽  
Victoria Land ◽  
Geological Models ◽  
Laboratory Investigations ◽  
The Antarctic

The Tertiary stocks (Meander Intrusives) cropping out along the coasts of the Ross Sea were sampled for a palaeomagnetic study during the sixth Italian expedition to northern Victoria Land. Laboratory investigations concerned magnetic mineralogy and remanent magnetization. Minerals of the magnetiteulvöspinel series occur in the rocks from all stocks, with low-Ti titanomagnetite usually prevalent. Haematite and goethite occur in small amounts as alteration products. Large secondary components commonly screen the characteristic remanent magnetization and were removed by thermal or AF demagnetization at temperatures or peak-fields higher than 360°C and 20 mT respectively. A total of 10 VGPs were obtained from radiometrically dated rocks (42–22 Ma); the averaged position (69°S, 334°E; α95=9.9°) is the first middle Tertiary palaeomagnetic pole for East Antarctica, and gives evidence for a reversal in the course of the APW path. This evidence is not substantially altered by a supposed tilt-correction consistent with geophysical and geological models for the uplift of the Transantarctic Mountains. No definite conclusion about relative movements between East Antarctica and the Antarctic Peninsula can be drawn from the existing palaeomagnetic data.

THE PETROLEUM POTENTIAL OF ANTARCTICA AND ITS CONTINENTAL MARGIN

1981 ◽  
Vol 21 (1) ◽  
pp. 99
Author(s):  
P. J. Cameron
Keyword(s):  
Continental Margin ◽  
Ross Sea ◽  
Mineral Resources ◽  
Weddell Sea ◽  
East Antarctica ◽  
Petroleum Exploration ◽  
Oil Accumulation ◽  
Petroleum Potential ◽  
Late Mesozoic ◽  
West Antarctic

On the basis of geological comparison and analogy with other Gondwanaland continents, four regions of Antarctica and its continental margin offer potential petroleum-bearing basins.The area of the Weddell Sea, Byrd subglacial basin and Ross Sea is analogous to the area east of the Andes Mountains in Argentina and offers good petroleum potential.The divergent continental margin of East Antarctica is analogous to the southern Australian and East Brazilian margins and its continental shelf is likely to contain Late Mesozoic basins, perhaps with a variety of reservoir systems, having good petroleum potential.The wide continental shelves of the Bellinghausen and Amundsen seas on the West Antarctic margin may also present favourable areas of petroleum exploration. Large intracratonic basins in East Antarctica, although possibly geologically favourable for oil accumulation, lie beneath thick ice, are largely unknown, and are the least prospective of the four areas.The exploitation of any Antarctic mineral resources will require the resolution of sovereignty claims to Antarctica at present excluded from the Antarctic Treaty.

scholarly journals Rayleigh wave phase velocity analysis of the Ross Sea, Transantarctic Mountains, and East Antarctica from a temporary seismograph array

2006 ◽  
Vol 111 (B6) ◽  
pp. n/a-n/a ◽  
Author(s):  
Jesse F. Lawrence ◽  
Douglas A. Wiens ◽  
Andrew A. Nyblade ◽  
Sridhar Anandakrishnan ◽  
Patrick J. Shore ◽  
...  
Keyword(s):  
Phase Velocity ◽  
Rayleigh Wave ◽  
Ross Sea ◽  
East Antarctica ◽  
Velocity Analysis ◽  
Wave Phase ◽  
Wave Phase Velocity ◽  
Transantarctic Mountains ◽  
Rayleigh Wave Phase Velocity

Chapter 6: Sledging

Polar Record ◽  
1996 ◽  
Vol 32 (181) ◽  
pp. 137-145
Keyword(s):  
Turning Point ◽  
Ross Sea ◽  
The Real ◽  
Sea Area

Around 1920 was the real turning point in the significant evolution of British polar technology and travel. Earlier British polar ventures had been primarily naval and shipborne, with over-wintering shore stations in the Ross Sea area of Antarctica.

The Scottish National Antarctic Expedition 1902–04

Polar Record ◽  
1985 ◽  
Vol 22 (139) ◽  
pp. 379-392 ◽  
Author(s):  
Ralph E. Bernstein
Keyword(s):  
Ross Sea ◽  
Scientific Discovery ◽  
Weddell Sea ◽  
East Antarctica ◽  
Orkney Islands ◽  
Geographical Society ◽  
Antarctic Expedition ◽  
South Orkney Islands ◽  
20Th Anniversary ◽  
First Time

On 21 July 1904, just over 80 years ago, the barque-rigged, Norwegian-built auxiliary steamship Scotia sailed home up the Clyde with members of the Scottish National Antarctic Expedition (SNAE), concluding one of the most successful expeditions of the heroic period of Antarctic exploration. Contemporaneous with the more spectacular British Antarctic Expedition (1901–03) commanded by Robert Falcon Scott, the Scotia party under William Spiers Bruce had overwintered on Laurie Island (60° 44ʹ S, 44° 50ʹ W) in the South Orkney Islands, explored for the first time the oceanography of the Weddell Sea, assembled an important collection of scientific material, and discovered Coats Land, an icebound stretch of the East Antarctica coast.While Scott's Discovery expedition had emphasized geographical exploration inland from the Ross Sea sector of Antarctica, Bruce in the Scotia had concentrated more on scientific discovery in the Weddell Sea sector. On 12 November 1904 in Edinburgh, members of the Scotia and Discovery expeditions were guests at the 20th anniversary dinner of the Royal Scottish Geographical Society, Bruce and Scott together responding to a presidential toast that honoured the success of both.

scholarly journals 20th century behaviour of Drygalski Ice Tongue, Ross Sea, Antarctica

1994 ◽  
Vol 20 ◽  
pp. 397-400 ◽  
Author(s):  
M. Frezzotti ◽  
M.C.G Mabin
Keyword(s):  
Sea Ice ◽  
20Th Century ◽  
Ross Sea ◽  
Early Years ◽  
Aerial Photographs ◽  
Significant Feature ◽  
Outlet Glacier ◽  
Terra Nova Bay ◽  
Ice Production ◽  
Sea Area

Drygalski Ice Tongue is the floating seaward extension of David Glacier, a large outlet glacier draining from Talos and Circe Domes of the East Antarctic ice sheet. Several explorers mapped and described Drygalski Ice Tongue in the early years of the 20th century and, although this information does not allow detailed interpretation of ice-tongue behaviour, it is clear that from 1900–12 it was a significant feature extending 65—75 km from the coast. More detailed information has been compiled from aerial photographs and satellite images. In December 1956, the ice tongue was about 110 km long. By December 1957, a major calving event had occurred and the outer 40 km of the ice tongue had broken away. This is the only major 20th century calving event identified, and it may have occurred during a violent storm that affected the Ross Sea area in mid-June 1957. By 1960, further minor ice loss had occurred but, since that time, Drygalski Ice Tongue has maintained the same shape. In January 1993, the ice tongue was 95.8 km long and at its terminus was flowing at 880 900 m a-1. Drygalski Ice Tongue is an important regulator of the size of the Terra Nova Bay polynya. The average size of the Polynya has varied from nearly 2000 km2, in 1956, to 650 km2in 1957. This has a. significant impact on sea-ice production in the Ross Sea. In 1956, about 115 km3,) of sea ice would have been produced, sufficient to cover 30%of the Ross Sea area with a 1 m thickness of sea ice.

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