Location
The Crosson Ice Shelf extends northeast into the Amundsen Sea on the Walgreen Coast of Marie Byrd Land. The Bear Peninsula is on its northwest. The Mount Murphy massif is along its south edge. [2] [3]
The Crosson Ice Shelf ( 74°57′S109°30′W / 74.950°S 109.500°W ) is an ice shelf, about 35 nautical miles (65 km; 40 mi) wide, located north and northeast of Mount Murphy along the Walgreen Coast of Marie Byrd Land, Antarctica. The ice shelf is nurtured by Smith Glacier, Pope Glacier, Vane Glacier, and Haynes Glacier. [1]
The Crosson Ice Shelf extends northeast into the Amundsen Sea on the Walgreen Coast of Marie Byrd Land. The Bear Peninsula is on its northwest. The Mount Murphy massif is along its south edge. [2] [3]
Crosson Ice Shelf was mapped by the United States Geological Survey (USGS) from surveys and from United States Navy air photogrphs, 1959–66. It was named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Commander W.E. Crosson, U.S. Navy, Commanding Officer of the Antarctic Construction Group during Operation Deep Freeze 1973. [1]
Mount Murphy is a massive, snow-covered mountain with steep, rocky slopes rising to 2,505 metres (8,219 ft) in Marie Byrd Land, Antarctica. It is directly south of Bear Peninsula and is bounded by Smith Glacier, Pope Glacier and Haynes Glacier. Volcanic activity began in the Miocene with the eruption of basaltic and trachytic lava. Volcanism on the slopes of the volcano resumed much later during the Pleistocene, with a parasitic cone having been K–Ar dated to 0.9 million years old.
Kohler Range is a mountain range in Marie Byrd Land, Antarctica. The range is about 40 nautical miles long and stands between the base of Martin Peninsula and Smith Glacier. The range consists of two ice-covered plateaus punctuated by several rock peaks and bluffs. The plateaus are oriented East-West and are separated by the Kohler Glacier, a distributary which flows north from Smith Glacier.
Dotson Ice Shelf is an ice shelf about 30 miles (50 km) wide between Martin Peninsula and Bear Peninsula on the coast of Marie Byrd Land in Antarctica. It was first mapped by the U.S. Geological Survey from air photos obtained by U.S. Navy Operation Highjump in January 1947, and was named by the Advisory Committee on Antarctic Names for Lieutenant William A. Dotson, US Navy, formerly Officer in Charge of the Ice Reconnaissance Unit of the Naval Oceanographic Office, killed in a plane crash in Alaska in November 1964 while on an ice reconnaissance mission.
Smith Glacier (75°05′S112°00′W is a low-gradient Antarctic glacier, over 160 km long, draining from Toney Mountain in an ENE direction to Amundsen Sea. A northern distributary, Kohler Glacier, drains to Dotson Ice Shelf but the main flow passes to the sea between Bear Peninsula and Mount Murphy, terminating at Crosson Ice Shelf.
Bear Peninsula is a peninsula about 80 km (50 mi) long and 40 km (25 mi) wide which is ice-covered except for several isolated rock bluffs and outcrops along its margins, lying 48 km 30 mi) east of Martin Peninsula on Walgreen Coast, Marie Byrd Land, Antarctica.
Martin Peninsula is a peninsula about 60 nautical miles long and 20 nautical miles wide that is ice-covered except for a few rock outcrops along its margins, located between Getz Ice Shelf and Dotson Ice Shelf on the coast of Marie Byrd Land, Antarctica. The farthest point of the peninsula is Jacobsen Head.
The Getz Ice Shelf is an ice shelf over 300 nautical miles long and from 20 to 60 nautical miles wide, bordering the Hobbs Coast and Bakutis Coast of Marie Byrd Land, Antarctica, between the McDonald Heights and Martin Peninsula. Several large islands are partially or wholly embedded in the ice shelf.
Sulzberger Bay is a bay indenting the front of the Sulzberger Ice Shelf between Fisher Island and Vollmer Island, along the coast of Marie Byrd Land, Antarctica.
Sulzberger Ice Shelf is an ice shelf about 85 nautical miles long and 50 nautical miles wide bordering the coast of Marie Byrd Land between Edward VII Peninsula and Guest Peninsula in Antarctica.
Zuniga Glacier is a glacier flowing west-northwest into Dotson Ice Shelf between Jeffrey Head and Mount Bodziony on the west side of Bear Peninsula, Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from aerial photographs taken by U.S. Navy Operation Highjump in 1947 and U.S. Navy in 1966, it was named by Advisory Committee on Antarctic Names (US-ACAN) after Mike "Iron Mike" Zuniga, Chief Aviation Storekeeper, U.S. Navy, who made seven Deep Freeze deployments between 1960 and 1978.
Wright Pass is a snow pass to the west of Jones Bluffs, running north–south for 3 nautical miles (6 km) between the terminus of Holt Glacier and the vicinity of Mayo Peak, Bear Peninsula on the Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from U.S. Navy aerial photographs taken 1966. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1977 after Chief Petty Officer William L. Wright, U.S. Navy, who completed six Operation Deepfreeze deployments up to 1977. As Leading Petty Officer, he conducted cargo traverses across the ice of McMurdo Sound to the McMurdo Dry Valleys.
Boschert Glacier is a glacier to the southeast of Hayden Peak, flowing southwest from Bear Peninsula into Dotson Ice Shelf, on Walgreen Coast, Marie Byrd Land. It was mapped by the United States Geological Survey (USGS) from U.S. Navy aerial photographs taken 1966, and named in 1977 by the Advisory Committee on Antarctic Names after Ralph G. Boschert, USGS cartographer, a member of the USGS satellite surveying team at South Pole Station, winter party 1975.
Bowyer Butte is a steep-cliffed eminence with a nearly flat summit, 3 nautical miles wide and 1,085 metres (3,560 ft) high, located between the lower ends of the Johnson Glacier and the Venzke Glacier on the coast of Marie Byrd Land, Antarctica.
Brush Glacier is a broad glacier in the northwest part of the Bear Peninsula, flowing west into Dotson Ice Shelf to the north of Jeffrey Head, in Marie Byrd Land. The head of the glacier is marked by rocky, wedge-shaped Rogers Spur. Webster Pass divides Brush Glacier from Holt Glacier.
Nicholson Peninsula is a broad ice-covered peninsula about 15 nautical miles (28 km) long, between Couzens Bay and Matterson Inlet on the Shackleton Coast on the west side of the Ross Ice Shelf, Antarctica.
Webster Pass is a snow pass in central Bear Peninsula located at the divide between Brush Glacier and Holt Glacier, on Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from U.S. Navy aerial photographs taken 1966. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1977 after William O. Webster, U.S. Navy aerographer on seven Operation Deepfreeze deployments, including one winter.
True Glacier is a glacier on the west side of Bear Peninsula, flowing southwest into Dotson Ice Shelf south of Hunt Bluff, on the Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from U.S. Navy aerial photographs taken in 1966. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1977 after Lawrence E. True, U.S. Navy radioman who to that time had served in three deployments of Operation Deep Freeze.
Pope Glacier is a glacier about 20 nautical miles (37 km) long, flowing north along the west side of Mount Murphy to Crosson Ice Shelf on Walgreen Coast, in Marie Byrd Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1959–66. Named by Advisory Committee on Antarctic Names (US-ACAN) after Maj. Donald R. Pope, (CE) USA, civil engineer on the staff of the Commander, Naval Support Force, Antarctica, 1965–67. It is a tributary of Smith Glacier.
Hull Bay is an ice-filled bay, about 25 nautical miles wide, fed by Hull Glacier, which descends into it between Lynch Point and Cape Burks, on the coast of Marie Byrd Land, Antarctica.
Sorenson Glacier is a glacier between Moore Dome and Rogers Spur on Bear Peninsula, flowing west into Dotson Ice Shelf on Walgreen Coast, Marie Byrd Land. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photographs, 1959–67. Named in 1977 by Advisory Committee on Antarctic Names (US-ACAN) after Jon E. Sorenson, civil engineer, USGS, a member of the satellite surveying team at South Pole Station, winter party 1975.
This article incorporates public domain material from websites or documents of the United States Board on Geographic Names. This article incorporates public domain material from websites or documents of the United States Geological Survey . This article incorporates public domain material from "Crosson Ice Shelf". Geographic Names Information System . United States Geological Survey.
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