51-496: Shotton Snowfield ( 80°35′S 23°15′W / 80.583°S 23.250°W / -80.583; -23.250 ) is a large snowfield between Herbert Mountains and Pioneers Escarpment on the north and Read Mountains on the south, in the Shackleton Range of Antarctica. The Shackleton Range is an ice-covered plateau between 1,200 and 1,600 metres (3,900 and 5,200 ft) high that rises between two large glaciers. It
102-791: 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, 1955–58. 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
153-419: A plagioclase-microcline gneiss and a quartzitic gneiss with cataclastic and/or blastomylonitic texture. An amphibolite has also been found there that contained light-brown biotite with incIusions of zircon and rutile. Herbert Mountains The Herbert Mountains ( 80°20′S 25°30′W / 80.333°S 25.500°W / -80.333; -25.500 ) are a conspicuous group of rock summits on
204-643: Is a rectangular horst rising above major fault zones now under the Slessor Glacier to the north and Recovery Glacier glacier to the south. The center of the range is covered by a long ice cap stretching from the Fuchs Dome in the west to Shotton Snowfield in the east, and bounded by cliffs as high as 400 metres (1,300 ft). The Shotton Snowfield extends east from the Gordon Glacier , which separates it from Fuchs Dome . The Read Mountains separate it from
255-598: 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 . Download coordinates as: Named geographical features on
306-416: 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 . Download coordinates as: Named geographical features on
357-573: The Recovery Glacier to the south. The Herbert Mountains are northwest of the snowfield, and further east the Pioneers Escarpment lies between it and the Slessor Glacier to the north. The snowfield stretches eastward until it merges into the Antarctic ice sheet. Shotton Snowfield, Fuchs Dome and the table mountains that surround them are the remnants of a peneplain . The southern edges of
408-449: The 1983 United States Geological Survey map include: 80°20′S 25°00′W / 80.333°S 25.000°W / -80.333; -25.000 . 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
459-449: The 1983 United States Geological Survey map include: 80°20′S 25°00′W / 80.333°S 25.000°W / -80.333; -25.000 . 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
510-499: The Pleistocene period. 80°15′S 24°52′W / 80.250°S 24.867°W / -80.250; -24.867 . Rocks rising to c. 1,000 metres (3,300 ft) at the east side of the terminus 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 in 1971 by
561-445: The Pleistocene period. 80°15′S 24°52′W / 80.250°S 24.867°W / -80.250; -24.867 . Rocks rising to c. 1,000 metres (3,300 ft) at the east side of the terminus 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 in 1971 by
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#1732852269001612-596: The Read Mountains escarpment. It is probably over 1,500 metres (4,900 ft) thick, and may be assumed to extend northward under the Shotton Snowfield. The Turnpike Bluff group rests unconformably on the Shackleton Range Metamorphic Complex. It has not been directly dated, but is probably late Precambrian or perhaps in part Cambrian . The United States Navy obtained aerial photographs of
663-493: The UK-APC after Arvid Gustaf Högbom (1857-1940), Swedish geologist who made important contributions to the glacial geology of northern Sweden. 80°26′S 25°33′W / 80.433°S 25.550°W / -80.433; -25.550 . A line of cliffs to the south of Mount Absalom 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
714-444: The UK-APC after Arvid Gustaf Högbom (1857-1940), Swedish geologist who made important contributions to the glacial geology of northern Sweden. 80°26′S 25°33′W / 80.433°S 25.550°W / -80.433; -25.550 . A line of cliffs to the south of Mount Absalom 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
765-447: The central ridge of Herbert Mountains, Shackleton Range. The feature is notable for a monolith forming the summit. 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 Charles Maclaren (1782-1866), Scottish naturalist who in 1842 was the first to recognize
816-401: The central ridge of Herbert Mountains, Shackleton Range. The feature is notable for a monolith forming the summit. 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 Charles Maclaren (1782-1866), Scottish naturalist who in 1842 was the first to recognize
867-459: The east part of Shotton Snowfield, Shackleton Range. Photographed from the air by the U.S. Navy in 1967 and surveyed by BAS, 1968-71. In association with the names of pioneers of polar life and travel grouped in this area, named by the UK-APC after Frans W. Lindqvist (1862-1931), Swedish inventor of the Primus pressure stove in 1892. Not: Lindquist Nunatak, Lindqvist Island. Lindqvist Nunatak contains
918-499: 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, 1955–58. 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
969-520: The entire Shackleton Range. It seems to be part of the Antarctic Shield . It is formed from sedimentary rocks that have been metamorphosed in some regions, more in the south than the north of the range. The Flett Crags formation, part of the Turnpike Bluff Group, mainly consists of slate, but contains some bands of quartzite and pebbly conglomerate. It can be seen in the nunataks north of
1020-542: The feature in 1967 and it was surveyed by British Antarctic Survey (BAS), 1968–71. It was named by the United Kingdom Antarctic Place-Names Committee (UK-APC), 1971, in association with the names of glacial geologists grouped in this area, after Frederick William Shotton (1906–90), British Quaternary geologist and Professor of Geology, University of Birmingham, 1949–74. Not: Shottonfonna. Download coordinates as: Isolated nunataks in
1071-848: The glacial control of sea level. 80°24′S 25°24′W / 80.400°S 25.400°W / -80.400; -25.400 . Southernmost and highest (1,640 metres (5,380 ft)) mountain of the Herbert Mountains, in the central part of the Shackleton Range. First mapped in 1957 by the CTAE and named for Henry W. L. Absalom , member of the Scientific Committee on the CTAE, 1955–58. 80°26′S 25°43′W / 80.433°S 25.717°W / -80.433; -25.717 . A narrow rock spur, 2 miles (3.2 km) long, with talus slopes rising to c. 1,200 metres (3,900 ft), located 2 miles (3.2 km) southwest of Mount Absalom in
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#17328522690011122-679: The glacial control of sea level. 80°24′S 25°24′W / 80.400°S 25.400°W / -80.400; -25.400 . Southernmost and highest (1,640 metres (5,380 ft)) mountain of the Herbert Mountains, in the central part of the Shackleton Range. First mapped in 1957 by the CTAE and named for Henry W. L. Absalom , member of the Scientific Committee on the CTAE, 1955–58. 80°26′S 25°43′W / 80.433°S 25.717°W / -80.433; -25.717 . A narrow rock spur, 2 miles (3.2 km) long, with talus slopes rising to c. 1,200 metres (3,900 ft), located 2 miles (3.2 km) southwest of Mount Absalom in
1173-571: The junction of Gordon and Slessor Glaciers on the north side of the Shackleton Range. First mapped in 1957 by the CTAE and named for Alfred H. Sheffield, chairman of the radio communications working group for the IGY, who was of great assistance in this field to the CTAE, 1955–58. 80°18′S 25°44′W / 80.300°S 25.733°W / -80.300; -25.733 . A prominent elevated rock mass 2.5 miles (4.0 km) southwest SW of Charpentier Pyramid, rising to c. 1,100 metres (3,600 ft) on
1224-525: The junction of Gordon and Slessor Glaciers on the north side of the Shackleton Range. First mapped in 1957 by the CTAE and named for Alfred H. Sheffield, chairman of the radio communications working group for the IGY, who was of great assistance in this field to the CTAE, 1955–58. 80°18′S 25°44′W / 80.300°S 25.733°W / -80.300; -25.733 . A prominent elevated rock mass 2.5 miles (4.0 km) southwest SW of Charpentier Pyramid, rising to c. 1,100 metres (3,600 ft) on
1275-455: The names of glacial geologists grouped in this area, named by the UK-APC after Sydney E. Hollingworth (1899–1966), British geologist who specialized in the Pleistocene geology of NW England; Professor of Geology, University College, London University, 1946–66. 80°27′S 25°53′W / 80.450°S 25.883°W / -80.450; -25.883 . A narrow ridge 1 mile (1.6 km) long, rising to c. 1,200 metres (3,900 ft) at
1326-455: The names of glacial geologists grouped in this area, named by the UK-APC after Sydney E. Hollingworth (1899–1966), British geologist who specialized in the Pleistocene geology of NW England; Professor of Geology, University College, London University, 1946–66. 80°27′S 25°53′W / 80.450°S 25.883°W / -80.450; -25.883 . A narrow ridge 1 mile (1.6 km) long, rising to c. 1,200 metres (3,900 ft) at
1377-517: 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 / -80.350; -25.583 . A cirque to the southeast of Sumgin Buttress in
1428-417: 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 / -80.350; -25.583 . A cirque to the southeast of Sumgin Buttress in
1479-704: The names of pioneers of polar life and exploration grouped in this area, named by the UK-APC in 1971 after Douglas W. Freshfield (1845-1934), English geographer and mountaineer in the Caucasus Mountains and the Himalayas. Freshfield Nunatak should perhaps be seen as part of the Herbert Mountains . Rocks include biotite schists and biotite quartzite . 80°36′S 21°21′W / 80.600°S 21.350°W / -80.600; -21.350 . A castlelike nunatak rising to 1,590 metres (5,220 ft) to
1530-627: 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 / -80.267; -25.617 . Pyramid-shaped peak rising to 1,080 metres (3,540 ft) in
1581-627: 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 / -80.267; -25.617 . Pyramid-shaped peak rising to 1,080 metres (3,540 ft) in
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1632-567: The north part of 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 after Nathaniel S. Shaler (1841-1906), American geologist, joint author with geographer William Morris Davis of Glaciers (Boston, 1881) and of papers on glacial geology, 1884–92. 80°10′S 25°42′W / 80.167°S 25.700°W / -80.167; -25.700 . Rocky mountain, 915 metres (3,002 ft), at
1683-567: The north part of 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 after Nathaniel S. Shaler (1841-1906), American geologist, joint author with geographer William Morris Davis of Glaciers (Boston, 1881) and of papers on glacial geology, 1884–92. 80°10′S 25°42′W / 80.167°S 25.700°W / -80.167; -25.700 . Rocky mountain, 915 metres (3,002 ft), at
1734-487: 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 / -80.400; -25.867 . A nunatak 3 miles (4.8 km) west of Mount Absalom in
1785-487: 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 / -80.400; -25.867 . A nunatak 3 miles (4.8 km) west of Mount Absalom in
1836-606: The snowfield have flat rocky areas against cliffs that rise for up to 400 metres (1,300 ft). The ice in most of the snowfield flows north, over the escarpment and into the Slessor Glacier. Ice from a small area in the southwest of the snowfield flows south between the Read Mountains and the Stephenson Bastion into the Recovery Glacier. The Shackleton Range Metamorphic Complex forms the metamorphic basement of almost
1887-430: The snowfield that are named on the 1983 United States Geological Survey map are (west to east): 80°28′S 24°53′W / 80.467°S 24.883°W / -80.467; -24.883 . An isolated nunatak rising to c. 1,450 metres (4,760 ft) to the southeast of Herbert Mountains in the Shackleton Range. Photographed from the air by the U.S. Navy, 1967, and surveyed by BAS, 1968-71. In association with
1938-626: The southeast rim of Bonney Bowl 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 Ignaz Venetz-Sitten (known as Venetz, 1788–1859), Swiss engineer and glacial geologist who, in 1821, first expressed in detail the idea that Alpine glaciers were formerly much more extensive. Herbert Mountains The Herbert Mountains ( 80°20′S 25°30′W / 80.333°S 25.500°W / -80.333; -25.500 ) are
1989-416: The southwest end 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 Thomas F. Jamieson (1829-1913), Scottish geologist whose work on the ice-worn rocks of Scotland developed the true origin of glacial striae in 1862; originator of
2040-416: The southwest end 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 Thomas F. Jamieson (1829-1913), Scottish geologist whose work on the ice-worn rocks of Scotland developed the true origin of glacial striae in 1862; originator of
2091-419: 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
Shotton Snowfield - Misplaced Pages Continue
2142-419: 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
2193-785: The southwest of Mount Dewar in Shotton Snowfield, Shackleton Range. Photographed from the air by the U.S. Navy, 1967. Surveyed by BAS, 1968-71. In association with the names of pioneers of polar life and travel grouped in this area, named by the UK-APC in 1971 after Ole Ferdinand Bergan (1876-1956), Norwegian inventor who designed Bergan's "meis" (carrying frames) and rucksacks, patented in Norway in 1909. Bergan Castle contains an intensely folded sericite quartzite or muscovite quartzite, partly blastomylonitic . 80°39′S 20°38′W / 80.650°S 20.633°W / -80.650; -20.633 . A nunatak 6 miles (9.7 km) south of Chevreul Cliffs, rising to 1,470 metres (4,820 ft) in
2244-648: The southwest portion 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 after Sir Andrew C. Ramsay (1814–91), Scottish geologist who first recognized the glacial origin of rock basins in 1862; Director-General, Geological Survey of Great Britain, 1871–81. 80°17′S 25°29′W / 80.283°S 25.483°W / -80.283; -25.483 . Rock cliffs 2 miles (3.2 km) east-southeast of Charpentier Pyramid, rising to 1,000 metres (3,300 ft) in
2295-648: The southwest portion 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 after Sir Andrew C. Ramsay (1814–91), Scottish geologist who first recognized the glacial origin of rock basins in 1862; Director-General, Geological Survey of Great Britain, 1871–81. 80°17′S 25°29′W / 80.283°S 25.483°W / -80.283; -25.483 . Rock cliffs 2 miles (3.2 km) east-southeast of Charpentier Pyramid, rising to 1,000 metres (3,300 ft) in
2346-677: The theory of isostasy in 1865. 80°15′S 25°39′W / 80.250°S 25.650°W / -80.250; -25.650 . An ice-free cirque at the northwest end 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 Percy Fry Kendall (1856–1936), English glacial geologist; sometime Professor of Geology, Leeds University. 80°20′S 25°23′W / 80.333°S 25.383°W / -80.333; -25.383 . A peak rising to c. 1,000 metres (3,300 ft) on
2397-677: The theory of isostasy in 1865. 80°15′S 25°39′W / 80.250°S 25.650°W / -80.250; -25.650 . An ice-free cirque at the northwest end 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 Percy Fry Kendall (1856–1936), English glacial geologist; sometime Professor of Geology, Leeds University. 80°20′S 25°23′W / 80.333°S 25.383°W / -80.333; -25.383 . A peak rising to c. 1,000 metres (3,300 ft) on
2448-532: The west side of Herbert Mountains, Shackleton Range. It was roughly surveyed by the CTAE, 1957, photographed from the air by the U.S. Navy, 1967, and resurveyed by BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after Mikhail I. Sumgin (1873–1942), Russian pioneer in permafrost research. 80°23′S 25°30′W / 80.383°S 25.500°W / -80.383; -25.500 . A peak rising to c. 1,500 metres (4,900 ft) and surmounting
2499-532: The west side of Herbert Mountains, Shackleton Range. It was roughly surveyed by the CTAE, 1957, photographed from the air by the U.S. Navy, 1967, and resurveyed by BAS, 1968–71. In association with the names of glacial geologists grouped in this area, named by the UK-APC in 1971 after Mikhail I. Sumgin (1873–1942), Russian pioneer in permafrost research. 80°23′S 25°30′W / 80.383°S 25.500°W / -80.383; -25.500 . A peak rising to c. 1,500 metres (4,900 ft) and surmounting
2550-607: 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 / -80.233; -25.300 . A series of steep cliffs near
2601-549: 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 / -80.233; -25.300 . A series of steep cliffs near
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