Morozumi Range | |
---|---|
Highest point | |
Elevation | 1,466 m (4,810 ft) |
Geography | |
Range coordinates | 71°39′S161°55′E / 71.650°S 161.917°E |
The Morozumi Range ( 71°39′S161°55′E / 71.650°S 161.917°E ) is a mountain range in the Usarp Mountains of North Victoria Land, Antarctica. It extends northwest–southeast for 25 miles (40 km), with its northern elevations overlooking the convergence of Gressitt Glacier and Rennick Glacier.
The Morozumi Range was mapped by the United States Geological Survey from surveys and United States Navy air photos in 1960–63. It was named by the Advisory Committee on Antarctic Names (US-ACAN) for Henry M. Morozumi, an aurora scientist at South Pole Station in 1960, and Station Scientific Leader at Byrd Station in 1963. [1]
The Morozumi Range is in the Rennick Graben, separated by the Rennick Faults from the Wilson Group rocks of the USARP mountains. Basement rocks are low-grade metasedimentary rocks that include greywacke-shale. The northern end holds the Adamellite Massif, a pluton of Granite Harbour Intrusives. [2]
71°30′S161°15′E / 71.500°S 161.250°E . A broad glacier, about 45 mi long, draining the area between Daniels Range and Emlen Peaks in the Usarp Mountains and flowing northeast to enter the Rennick Glacier just north of the Morozumi Range. Mapped by USGS from surveys and U.S. Navy air photos, 1960–63. Named by US-ACAN for biologist J. Linsley Gressitt, Program Director who made biological studies, particularly in the Ross Sea area, in six austral summers, 1959-60 to 1965-66. [3]
70°30′S160°45′E / 70.500°S 160.750°E . A broad glacier, nearly 200 miles (320 km) long, which is one of the largest in Antarctica. It rises on the polar plateau westward of Mesa Range and is 20 to 30 miles (32 to 48 km) wide, narrowing to 10 miles (16 km) near the coast. It takes its name from Rennick Bay where the glacier reaches the sea. [4] The Rennick Glacier flows north between the east side of the Morozumi Range and the west side of the Lanterman Range. [5]
Features from north to south are: [6]
71°28′S161°44′E / 71.467°S 161.733°E . A high rock ridge north of El Pulgar, forming the north extremity of Morozumi Range. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. The ridge was visited by NZGSAE, 1967–68, who gave the name because geologist J.A.S. Dow received his exam results here. [7]
71°29′S161°46′E / 71.483°S 161.767°E . A precipitous granite monolith, 1,660 metres (5,450 ft) high, standing 3 miles (4.8 km) north of Berg Peak in northern Morozumi Range. The feature was climbed by four members of NZGSAE, 1967-68, who gave the name El Pulgar (Spanish for "the thumb"). [8]
71°30′S161°41′E / 71.500°S 161.683°E . A somewhat detached peak over 120 metres (390 ft) high situated on the northwest margin of the Morozumi Range, 2.5 miles (4.0 km) northwest of Berg Peak. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. Named by US-ACAN for Arthur A. Twomey, USARP geologist at McMurdo Station, 1967-68 and 1968-69. [9]
71°32′S161°57′E / 71.533°S 161.950°E . A nunatak at the north side of the entrance to Jupiter Valley, on the east side of the Morozumi Range. So named by members of the NZGSAE, 1967-68, because of its shape. [10]
71°32′S161°47′E / 71.533°S 161.783°E . A prominent peak, 1,870 metres (6,140 ft) high, standing 3 miles (4.8 km) south of El Pulgar in northern Morozumi Range. Mapped by USGS from surveys and U.S. Navy air photos, 1960–63. Named by US-ACAN for Thomas E. Berg, geologist who wintered at McMurdo Sound in 1961, and spent three succeeding summer seasons making patterned ground studies in the area. Berg perished in the crash of a U.S. Navy helicopter near Mount McLennan, Nov. 19, 1969. [11]
71°34′S161°51′E / 71.567°S 161.850°E . A steep-walled valley in eastern Morozumi Range. The valley is occupied by a glacier and is entered between Sickle Nunatak and Mount Van Veen. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. The name was applied by the NZGSAE during the 1967-68 season. [12]
71°35′S161°54′E / 71.583°S 161.900°E . A precipitous, mainly ice-free mountain rising to 1,510 metres (4,950 ft) at the south side of Jupiter Amphitheatre in the Morozumi Range. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. Named by US-ACAN for Richard C. Van Veen, USARP geologist at McMurdo Station, 1967-68. [13]
71°44′S161°54′E / 71.733°S 161.900°E - A steep rock cliff on the west side of Morozumi Range. The cliff is over 6 miles (9.7 km) long. Its northern end is 6 miles (9.7 km) southwest of Mount Van Veen. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. Named by US-ACAN for Louis DeGoes of the National Academy of Sciences, Executive Secretary of the Committee on Polar Research, National Research Council. [14]
71°50′S162°00′E / 71.833°S 162.000°E . A saber-shaped ridge largely composed of bare rock, extending southward from DeGoes Cliff at the SW end of the Morozumi Range. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. Named by US-ACAN for Roland D. Paine, Public Information Officer, National Science Foundation, who worked at McMurdo Station, 1960-61 and 1968-69. [15]
The Nimrod Glacier is a major glacier about 135 km (85 mi) long, flowing from the polar plateau in a northerly direction through the Transantarctic Mountains into the Ross Ice Shelf, Antarctica.
The Geologists Range is a mountain range about 55 km (34 mi) long, standing between the heads of Lucy and Nimrod Glaciers in Antarctica. Seen by the northern party of the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1961–62) and named to commemorate the work of geologists in Antarctic exploration.
The Priestley Glacier is a major valley glacier, about 60 nautical miles long, originating at the edge of the Polar Plateau of Victoria Land, Antarctica. The glacier drains southeast between the Deep Freeze Range and Eisenhower Range to enter the northern end of the Nansen Ice Sheet. It was first explored by the Northern Party of the British Antarctic Expedition, 1910–13, and named for Raymond Priestley, a geologist with the Northern Party.
Lillie Glacier is a large glacier in Antarctica, about 100 nautical miles long and 10 nautical miles wide. It lies between the Bowers Mountains on the west and the Concord Mountains and Anare Mountains on the east, flowing to Ob' Bay on the coast and forming the Lillie Glacier Tongue.
The Mirabito Range is a narrow, northwest-trending mountain range, 64 kilometres (40 mi) long and 6 kilometres (3.7 mi) wide that lies between the upper part of Lillie Glacier and the Greenwell Glacier in northern Victoria Land, Antarctica. The range is part of the Concord Mountains.
Tucker Glacier is a major valley glacier of Victoria Land, Antarctica, about 90 nautical miles long, flowing southeast between the Admiralty Mountains and the Victory Mountains to the Ross Sea. There is a snow saddle at the glacier's head, just west of Homerun Range, from which the Ebbe Glacier flows northwestward.
The Usarp Mountains are a major mountain range in North Victoria Land, Antarctica. They are west of the Rennick Glacier and trend north to south for about 190 kilometres (118 mi). The mountains are bounded to the north by Pryor Glacier and the Wilson Hills.
The Daniels Range is a principal mountain range of the Usarp Mountains, about 80 km (50 mi) long and 16 km (10 mi) wide, bounded to the north by Harlin Glacier and to the south by Gressitt Glacier.
Wilson Hills is a group of scattered hills, nunataks and ridges that extend northwest–southeast about 70 nautical miles between Matusevich Glacier and Pryor Glacier in Antarctica.
The David Glacier is a glacier over 60 nautical miles long, flowing east from the polar plateau through the Prince Albert Mountains to the coast of Victoria Land, Antarctica. It enters Ross Sea between Cape Philippi and Cape Reynolds to form the floating Drygalski Ice Tongue. It is the most imposing outlet glacier in Victoria Land. It is fed by two main flows which drain an area larger than 200,000 square kilometres, with an estimated ice discharge rate of 7.8 +/- 0.7 km³/year. The David Glacier was discovered by Ernest Shackleton's "Northern Party," in November 1908, under the leadership of Prof. T.W. Edgeworth David, of Sydney University, for whom the feature was named.
The Mariner Glacier is a major glacier over 60 nautical miles long, descending southeast from the plateau of Victoria Land, Antarctica, between Mountaineer Range and Malta Plateau, and terminating at Lady Newnes Bay, Ross Sea, where it forms the floating Mariner Glacier Tongue.
Pryor Glacier is a glacier flowing northeastward, to the north of Mount Shields and Yermak Point, into Rennick Bay. The feature is about 30 nautical miles long and forms a physical separation between Wilson Hills and Usarp Mountains.
Rennick Glacier is broad glacier, nearly 200 nautical miles long, which is one of the largest in Antarctica. It rises on the polar plateau westward of Mesa Range and is 20 to 30 nautical miles wide, narrowing to 10 nautical miles near the coast. It takes its name from Rennick Bay where the glacier reaches the sea.
The Helliwell Hills are a group of rocky hills and low mountains about 18 miles (29 km) long and 9 miles (14 km) wide in the Usarp Mountains of North Victoria Land, Antarctica.
The Emlen Peaks is a group of scattered peaks and nunataks, 16 miles (26 km) long and 7 miles (11 km) wide. It is 6 miles (9.7 km) south of Daniels Range in the south end of the Usarp Mountains in northern Victoria Land, Antarctica.
The Pomerantz Tableland is a 2,290 metres (7,510 ft) high ice-covered tableland in the Usarp Mountains, Antarctica. It is about 10 nautical miles long, standing 15 nautical miles northwest of Daniels Range.
Campbell Glacier is a glacier, about 60 nautical miles long, originating near the south end of Mesa Range and draining southeast between the Deep Freeze Range and Mount Melbourne to discharge into north Terra Nova Bay in Victoria Land, Antarctica. The lower end of the glacier was observed by the Northern Party, led by Lieutenant Victor Campbell, Royal Navy, of the British Antarctic Expedition, 1910–13. It was named for the leader of this party. The extent of the glacier and its discharge into north Terra Nova Bay, rather than the Nansen Ice Sheet, was determined by United States and New Zealand survey parties to the area in 1961–62 and 1962–63.
The Nash Range is a mainly ice-covered coastal range in the Churchill Mountains of Antarctica.
Lowery Glacier is a glacier about 60 nautical miles (110 km) long, a tributary of the Nimrod Glacier, which enters the west of the Ross Ice Shelf, Antarctica.
Rennick Bay is an embayment of the coastline of Antarctica at the terminus of Rennick Glacier. It is bounded on the west and east by Belousov Point and Stuhlinger Ice Piedmont.