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Herbert Mountains
The Herbert Mountains (80°20′S 25°30′W / 80.333°S 25.500°W) are a conspicuous group of rock summits on the east side of Gordon Glacier in the Shackleton Range of Antarctica. They were first mapped in 1957 by the Commonwealth Trans-Antarctic Expedition and named for Sir Edwin S. Herbert, Chairman of the Finance Committee and a Member of the Committee of Management of the expedition, 1955–1958.
Rocks in the Herbert Mountains include gneisses of migmatite and pyroxene-biotite, schists of garnet-kyanite and minor occurrences of quartzite, Marble and calc-silicates. There is post-tectonic basalt in Mount Sheffield that may be connected with from the Jurassic Ferrar Dolerite. The age of rock samples from the Sumgin Buttress very from c. 268 million years for fuchsite, quartz schist to c. 434 million years for whole rock and amphibolite. These dates may be understated due to the loss of radiogenic Argon-40.
Named geographical features on the 1983 United States Geological Survey map include:
80°20′S 25°00′W / 80.333°S 25.000°W. A line of heights (1,220 metres (4,000 ft)), snow-covered to east but with a west-facing rock escarpment, rising east of Schimper Glacier in the Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after Reinhard Bernhardi, German geologist, who in 1832 first recognized the moraines and erratics of north Germany as evidence of a former south extension of the Arctic ice sheet.
80°21′S 25°35′W / 80.350°S 25.583°W. A cirque to the southeast of Sumgin Buttress in the west-central part of the Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after the Reverend Thomas G. Bonney (1833-1923), English geologist who worked on the origin of cirques; Professor of Geology, University College, London, 1877–1901.
80°14′S 25°18′W / 80.233°S 25.300°W. A series of steep cliffs near the north end of the central ridge of Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by the BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC after John K. Charlesworth (1889-1972), Irish geologist; Professor of Geology, Queens University, Belfast, 1921–54; author of The Quaternary Era, With Special Reference to its Glaciation, London, 1957.
80°16′S 25°37′W / 80.267°S 25.617°W. Pyramid-shaped peak rising to 1,080 metres (3,540 ft) in the northwest part of the Herbert Mountains, Shackleton Range, q.v. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after Jean de (Hans von) Charpentier (1786-1855), Swiss engineer and mineralogist, who in 1835 gave additional proof on the former extension of glaciers.
80°24′S 25°52′W / 80.400°S 25.867°W. A nunatak 3 miles (4.8 km) west of Mount Absalom in the southwest end of the Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by the BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after James Geikie (1839-1915), Professor of Geology, Edinburgh University from 1882, who was one of the first to recognize that multiple glaciations occurred during the Pleistocene period.
Herbert Mountains
The Herbert Mountains (80°20′S 25°30′W / 80.333°S 25.500°W) are a conspicuous group of rock summits on the east side of Gordon Glacier in the Shackleton Range of Antarctica. They were first mapped in 1957 by the Commonwealth Trans-Antarctic Expedition and named for Sir Edwin S. Herbert, Chairman of the Finance Committee and a Member of the Committee of Management of the expedition, 1955–1958.
Rocks in the Herbert Mountains include gneisses of migmatite and pyroxene-biotite, schists of garnet-kyanite and minor occurrences of quartzite, Marble and calc-silicates. There is post-tectonic basalt in Mount Sheffield that may be connected with from the Jurassic Ferrar Dolerite. The age of rock samples from the Sumgin Buttress very from c. 268 million years for fuchsite, quartz schist to c. 434 million years for whole rock and amphibolite. These dates may be understated due to the loss of radiogenic Argon-40.
Named geographical features on the 1983 United States Geological Survey map include:
80°20′S 25°00′W / 80.333°S 25.000°W. A line of heights (1,220 metres (4,000 ft)), snow-covered to east but with a west-facing rock escarpment, rising east of Schimper Glacier in the Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after Reinhard Bernhardi, German geologist, who in 1832 first recognized the moraines and erratics of north Germany as evidence of a former south extension of the Arctic ice sheet.
80°21′S 25°35′W / 80.350°S 25.583°W. A cirque to the southeast of Sumgin Buttress in the west-central part of the Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after the Reverend Thomas G. Bonney (1833-1923), English geologist who worked on the origin of cirques; Professor of Geology, University College, London, 1877–1901.
80°14′S 25°18′W / 80.233°S 25.300°W. A series of steep cliffs near the north end of the central ridge of Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by the BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC after John K. Charlesworth (1889-1972), Irish geologist; Professor of Geology, Queens University, Belfast, 1921–54; author of The Quaternary Era, With Special Reference to its Glaciation, London, 1957.
80°16′S 25°37′W / 80.267°S 25.617°W. Pyramid-shaped peak rising to 1,080 metres (3,540 ft) in the northwest part of the Herbert Mountains, Shackleton Range, q.v. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after Jean de (Hans von) Charpentier (1786-1855), Swiss engineer and mineralogist, who in 1835 gave additional proof on the former extension of glaciers.
80°24′S 25°52′W / 80.400°S 25.867°W. A nunatak 3 miles (4.8 km) west of Mount Absalom in the southwest end of the Herbert Mountains, Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by the BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after James Geikie (1839-1915), Professor of Geology, Edinburgh University from 1882, who was one of the first to recognize that multiple glaciations occurred during the Pleistocene period.
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