Thuronyi Bluff

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Location of Foyn Coast on Antarctic Peninsula. Ant-pen-Foyn.PNG
Location of Foyn Coast on Antarctic Peninsula.

Thuronyi Bluff ( 66°48′S64°45′W / 66.800°S 64.750°W / -66.800; -64.750 ) is a prominent escarpment on the east coast of the Antarctic Peninsula, which faces the Larsen Ice Shelf and the Weddell Sea and lies immediately south of the Antarctic Circle. It is located above Mill Inlet in British Antarctic Territory at the base of the Cole Peninsula, between Balch Glacier and Gould Glacier; it is part of Graham Land. [1] The bluff was first observed in aerial photographs taken on December 22, 1947, during the Ronne Antarctic Research Expedition. [2]

Just north of Thuronyi Bluff, the Larsen Ice Shelf once extended a hundred kilometers (or more) from land before any open sea would be encountered. However, part of the shelf larger than the state of Rhode Island, known as "Larsen B", disintegrated over a three-week period in 2002, which followed a similar disintegration of the equivalently sized "Larsen A" region in 1995. [3] It is anticipated that "Larsen C", which lies at the foot of Thuronyi Bluff, may suffer a similar fate sometime in the next decade, [4] after which open seawater will likely come near to Thuronyi Bluff during the austral summertime.


This escarpment is named for Géza T. Thuronyi (1919-2007), an Antarctic scholar at the Library of Congress, whose annotated bibliographies of the meteorological and geoastrophysical characteristics of Earth's cold regions did much to make often obscure publications more available to both the scientific community and the public. [5] The name was applied by the Advisory Committee on Antarctic Names upon Mr. Thuronyi's retirement in 1990, in recognition of his contributions in unveiling the nature of the Antarctic continent. [6]

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Wilkins Sound

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Weyerhaeuser Glacier is a large glacier flowing north into Mercator Ice Piedmont close west of Mobiloil Inlet, on the east coast of Antarctic Peninsula. This glacier lies in the area first explored from the air by Sir Hubert Wilkins in 1928 and Lincoln Ellsworth in 1935, but it was first clearly delineated in aerial photographs taken by the United States Antarctic Service (USAS) in 1940. The glacier was resighted in 1947 by the Ronne Antarctic Research Expedition (RARE) under Ronne. He named it for F. K. Weyerhaeuser, of the Weyerhaeuser Timber Co., who contributed lumber and insulating material to the expedition.

Evans Glacier (Graham Land)

Evans Glacier is a gently-sloping glacier 15 nautical miles (28 km) long and 4 nautical miles (7 km) wide, draining the southeast slopes of Travnik Buttress eastwards between Rugate Ridge and Poibrene Heights to flow into Vaughan Inlet on the east coast of Graham Land, Antarctica. It was discovered by Sir Hubert Wilkins in an aerial flight, December 20, 1928, and named "Evans Inlet" by him for E.S. Evans of Detroit. A further survey by the Falkland Islands Dependencies Survey in 1955 reported that this low-lying area is not an inlet, but is formed by the lower reaches of Hektoria Glacier and the feature now described.

Tindal Bluff is a rocky headland rising to 800 m between the terminus of Fricker Glacier and Monnier Point on the east coast of Graham Land. This coastal area was photographed by several American expeditions: United States Antarctic Service (USAS), 1939–41; Ronne Antarctic Research Expedition (RARE), 1947–48; U.S. Navy photos, 1968. Mapped by Falkland Islands Dependencies Survey (FIDS), 1947–48. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) for Ronald Tindal, General Assistant with the British Antarctic Survey (BAS) Larsen Ice Shelf party in 1963–64.


  1. "Name Details, Thuronyi Bluff" Antarctic Gazetteer, Australian Antarctic Data Centre, online
  2. Tupek, Karen Ronne (2006) "Captain Finn Ronne: Norwegian-American Antarctic Explorer" website of Ronne Family Antarctic Explorers, online
  3. Hulbe, Christina (2002) "Larsen Ice Shelf 2002, warmest summer on record leads to disintegration" website of Portland State University, online
  4. Rignot, Eric (2007) "Mass Balance and Ice Dynamics of Antarctic Peninsula Glaciers for IPY2007-2008" Proposal #359, International Polar Year Expression of Intent, online
  5. Holley, Joe (2008) "Geza T. Thuronyi, 88; Bibliographer for Library of Congress" Washington Post 1/4/08, p. B07, online
  6. US-ACAN "Policy Covering Antarctic Names" website of US Geological Survey, online