Mount Elkins | |
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![]() Map of Antarctica indicating the location of Mount Elkins | |
Highest point | |
Elevation | 2,300 m (7,500 ft) |
Coordinates | 66°39′S54°08′E / 66.650°S 54.133°E |
Geography | |
Location | Enderby Land, East Antarctica |
Parent range | Napier Mountains |
Geology | |
Age of rock | 2837 million years (Archean eon) |
Mountain type | Metamorphic |
Climbing | |
First ascent | 1960, by a survey party from Mawson Station which included Terence James Elkins, Sydney L. Kirkby, and Neville Joseph Collins |
Easiest route | basic snow/ice climb |
Mount Elkins, also known as Jökelen (which means "The Glacier") is a dark, steep-sided mountain with three major peaks, the highest 2,300 meters (7,500 ft) above sea level, in the Napier Mountains of Enderby Land. Enderby Land is part of East Antarctica and is claimed by Australia as part of the Australian Antarctic Territory. The mountain was named after Terence James Elkins, an ionospheric physicist with the Australian National Antarctic Research Expeditions at Mawson Station in 1960. [1] [2] [3] [4]
Some notable geographic features in the general vicinity of Mount Elkins include Cape Batterbee (92 km to the north), the Young Nunataks (7.4 km to the south), Sørtoppen Nunatak (30 km to the east), the Newman Nunataks (26 km to the west), Mount McMaster (97 km to the west), and Mount Kjerringa (57 km to the northeast). The nearest permanently inhabited place is Mawson Station, an Australian research station to the southeast. Molodyozhnaya Station, a former Soviet research station that was mothballed in 1989, is located to the southwest of Mount Elkins.
Mount Elkins is the highest peak in the Napier Mountains, and also the highest peak in Enderby Land. [5]
Much of the East Antarctic Shield was formed in the Precambrian period by a series of tectonothermal orogenic events. [6] Napier orogeny formed the cratonic nucleus approximately 4 billion years ago. [7] Mount Elkins is a classic example of Napier orogeny. Napier orogeny is characterized by high-grade metamorphism and plate tectonics. The orogenic events that resulted in the formation of the Napier Complex (including Mount Elkins) have been dated to the Archean Eon. Radiometrically dated to as old as 3.8 billion years, some of the zircons collected from the orthogneisses of the Napier Complex are among the oldest rock specimens found on Earth. [8] Billions of years of erosion and tectonic deformation have exposed the metamorphic rock core of these ancient mountains.
The oldest crustal components found to date in the Napier Complex appear to be of igneous derivation. This rock appears to have been overprinted by an ultra-high temperature metamorphic event (UHT) that occurred near the Archean-Proterozoic boundary. Using a lutetium-hafnium (Lu-Hf) method to examine garnet, orthopyroxene, sapphirine, osumilite and rutile from this UHT granulite belt, Choi et al determined an isochron age of 2.4 billion years for this metamorphic event. [8] Using SHRIMPU–Pb zircon dating methodology, Belyatsky et al determined the oldest tectonothermal event in the formation of the Napier Complex to have occurred approximately 2.8 billion years ago. [9]
Preservation of the UHT mineral assemblage in the analyzed rock suggests rapid cooling, with closure likely to have occurred for the Lu-Hf system at post-peak UHT conditions near a closure temperature of 800 °C. UHT granulites appear to have evolved in a low Lu-Hf environment, probably formed when the rocks were first extracted from a mantle profoundly depleted in lithophile elements. The source materials for the magmas that formed the Napier Complex were extremely depleted relative to the chondritic uniform reservoir (CHUR). These results also suggest significant depletion of the early Archean mantle, in agreement with the early igneous differentiation of the Earth that the latest core formation models require. [8]
To date, no flora has been observed at Mount Elkins. [3]
The following species have been sighted within 1.0 degrees of Mount Elkins: [3]
Scientific name | Authority | Common name | Observations |
---|---|---|---|
Balaenoptera bonaerensis | Burmeister, 1867 | Antarctic minke whale (also known as the dark-shoulder minke whale) | |
Fulmarus glacialoides | Smith,1840 | Southern fulmar | |
Halecium banzare [10] | Watson, 2008 | Banzare hydroid | |
Halecium brevithecum [10] | Watson, 2008 | Brevithecate hydroid | |
Pagodroma nivea | Forster,1777 | Snow petrel | |
Pygoscelis adeliae | Hombron and Jacquinot,1841 | Adélie penguin | |
Thalassoica antarctica | Gmelin,1789 | Antarctic petrel | |
The Napier Mountains run northwest from Mount Elkins. To the east is a large valley formed by the Robert and Wilma Glaciers. To the northeast are the Seaton and Rippon Glaciers. All of these glaciers run into the King Edward Ice Shelf. Other notable terrain features in this area include the Beaver Glacier, located to the west of Mount King. Collectively, these terrain features significantly modify weather produced by synoptic scale systems. Dramatic changes can occur over short distances and in short time intervals. [11] [12]
Place names within 1.0 degrees of Mount Elkins (Latitude 66°40.0'S Longitude 54°09.0'E)
Name | Feature | Latitude | Longitude | Distance | Bearing |
---|---|---|---|---|---|
Aagaard Islands | Island | 65°51.0'S | 53°40.0'E | 93.4 km | 346° |
Armstrong Peak | Peak | 66°24.0'S | 53°23.0'E | 45.1 km | 311° |
Bandy Nunataks | Nunatak | 66°55.0'S | 53°36.0'E | 36.8 km | 221° |
Bird Ridge | Ridge | 66°47.0'S | 55°04.0'E | 42.3 km | 108° |
Bratthø | Peak | 66°39.0'S | 54°40.0'E | 22.8 km | 086° |
Cape Batterbee | Cape | 65°51.0'S | 53°48.0'E | 92.2 km | 350° |
Conradi Peak | Peak | 66°08.0'S | 54°35.0'E | 62.4 km | 018° |
Doyle Point | Point | 65°53.0'S | 54°52.0'E | 92.8 km | 021° |
Grimsley Peaks | Peak | 66°34.0'S | 53°40.0'E | 24.1 km | 297° |
Knausen | Peak | 66°22.0'S | 53°13.0'E | 53.1 km | 308° |
Mjåkollen | Peak | 66°33.0'S | 53°28.0'E | 32.8 km | 293° |
Mount Bennett | Mountain | 66°32.0'S | 53°38.0'E | 27.2 km | 303° |
Mount Breckinridge | Mountain | 66°37.0'S | 53°41.0'E | 21.3 km | 285° |
Mount Bride | Mountain | 66°26.0'S | 53°57.0'E | 27.4 km | 341° |
Mount Gate | Mountain | 66°51.0'S | 53°18.0'E | 42.5 km | 241° |
Mount Griffiths | Mountain | 66°28.0'S | 54°01.0'E | 23.0 km | 345° |
Mount Maines | Mountain | 66°38.0'S | 53°54.0'E | 11.6 km | 288° |
Mount Pasco | Mountain | 66°59.0'S | 54°44.0'E | 43.5 km | 144° |
Mount Stadler | Mountain | 66°54.0'S | 53°14.0'E | 47.8 km | 237° |
Napier Mountains | Mountain | 66°30.0'S | 53°40.0'E | 28.3 km | 311° |
Newman Nunataks | Nunatak | 66°40.0'S | 54°45.0'E | 26.4 km | 090° |
Proclamation Island | Island | 65°51.0'S | 53°41.0'E | 93.2 km | 347° |
Rabben | Peak | 66°27.0'S | 54°07.0'E | 24.1 km | 356° |
Skarvet Nunatak | Nunatak | 66°26.0'S | 53°45.0'E | 31.4 km | 326° |
Sørtoppen Nunatak | Nunatak | 66°40.0'S | 53°28.0'E | 30.1 km | 270° |
Tippet Nunataks | Nunatak | 66°44.0'S | 53°15.0'E | 40.3 km | 259° |
Vicars Island | Island | 65°50.0'S | 54°29.0'E | 93.9 km | 009° |
Wheeler Rocks | Rock | 66°17.0'S | 55°08.0'E | 61.0 km | 046° |
Wilkinson Peaks | Peak | 66°37.0'S | 54°15.0'E | 7.1 km | 038° |
Young Nunataks | Nunatak | 66°44.0'S | 54°08.0'E | 7.4 km | 186° |
Mount Elkins was first mapped by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition, 1936–37, and named at that time Jökelen (The Glacier). It was remapped by ANARE from aerial photographs taken from an ANARE aircraft in 1956. The Napier Mountains were first visited by an ANARE survey party from Mawson Station in 1960. The survey party was led by Syd Kirkby and included Terence James Elkins.
The summit of Mount Elkins is higher than that of any mountain in Australia—including even Mount Kosciuszko (2,228 metres), which is one of the Seven Summits. Because of its remoteness it has not become a popular target for peak bagging.
Mawson Station, commonly called Mawson, is one of three permanent bases and research outposts in Antarctica managed by the Australian Antarctic Division (AAD). Mawson lies in Holme Bay in Mac. Robertson Land, East Antarctica in the Australian Antarctic Territory, a territory claimed by Australia. Established in 1954, Mawson is Australia's oldest Antarctic station and the oldest continuously inhabited Antarctic station south of the Antarctic Circle. It houses approximately 20 personnel over winter and up to 53 in summer.
Lambert Glacier is a major glacier in East Antarctica. At about 80 km (50 mi) wide, over 400 km (250 mi) long, and about 2,500 m (8,200 ft) deep, it is the world's largest glacier. It drains 8% of the Antarctic ice sheet to the east and south of the Prince Charles Mountains and flows northward to the Amery Ice Shelf. It flows in part of Lambert Graben and exits the continent at Prydz Bay.
Cape Ann is a cape on the coast of East Antarctica, surmounted by Mount Biscoe rising to a peak of 700 metres.
Mount Codrington is a prominent mountain, 1,520 metres (5,000 ft) high, standing 24 miles (39 km) south-southeast of Cape Close, 17 miles (27 km) east of Johnston Peak, and 11 miles (18 km) south of Simmers Peaks. Mount Codrington forms the northeastern end of the Napier Mountains.
The Tula Mountains are a group of extensive mountains lying immediately eastward of Amundsen Bay in Enderby Land, Antarctica. They were discovered on January 14, 1930, by the British Australian New Zealand Antarctic Research Expedition (BANZARE) under Mawson and named "Tula Range" by him after John Biscoe's brig, the Tula, from which Biscoe discovered Enderby Land in 1831. The term "mountains" was recommended for the group following an ANARE sledge survey in 1958 by G.A. Knuckey.
The Napier Mountains are a group of close set peaks, the highest being Mount Elkins, at about 2,300 meters above sea level. This mountain range is located in Enderby Land, in the claimed Australian Antarctic Territory, East Antarctica.
The Scott Mountains are a large number of isolated peaks lying south of Amundsen Bay in Enderby Land of East Antarctica, Antarctica. Discovered on 13 January 1930 by the British Australian New Zealand Antarctic Research Expedition (BANZARE) under Sir Douglas Mawson. He named the feature Scott Range after Captain Robert Falcon Scott, Royal Navy. The term mountains is considered more appropriate because of the isolation of its individual features.
Enderby Land is a projecting landmass of Antarctica. Its shore extends from Shinnan Glacier at about 67°55′S44°38′E to William Scoresby Bay at 67°24′S59°34′E, approximately 1⁄24 of the earth's longitude. It was first documented in western and eastern literature in February 1831 by John Biscoe aboard the whaling brig Tula, and named after the Enderby Brothers of London, the ship's owners who encouraged their captains to combine exploration with sealing.
Mount Biscoe is a distinctive black peak, the easternmost and largest of two ice-free rock massifs located 6 km south-west of Cape Ann on the coast of Enderby Land in Antarctica. About 700 m in height, it lies 7 km north-west of Wordie Nunatak, and 7 km north-east of Mount Hurley.
The geology of Antarctica covers the geological development of the continent through the Archean, Proterozoic and Phanerozoic eons.
Mount Kjerringa is an isolated peak, 1,220 metres (4,000 ft) above sea level, situated roughly 8 nmi (15 km) north of the Aker Peaks, 26 nmi (48 km) west of Magnet Bay, and 57 km (31 nmi) northeast of Mount Elkins in Enderby Land, East Antarctica.
Newman Nunataks
Terence James Elkins is an Australian-born American physicist. In 1960, he participated in an expedition from Mawson Station which conducted the first geological surveys of the Napier Mountains in Enderby Land, East Antarctica. The highest of this group of mountains, Mount Elkins, was subsequently named after him. In 1979, he received the Harold Brown Award, the United States Air Force's highest honor for research and development, for research he conducted that contributed to the development of the AN/FPS-115, AN/FPS-117 and AN/FPS-118 over-the-horizon backscatter (OTH-B) air defense radar system. Designed to replace the aging Ballistic Missile Early Warning System system, these systems are among the most powerful early-warning radar systems ever developed.
Sydney Lorrimar Kirkby, is an Australian surveyor and Antarctic explorer.
Mount Maines, also known as Stornuten, is a mountain, 2,190 metres (7,190 ft), standing roughly 13 kilometres (8.1 mi) SE of Stor Hånakken Mountain and 10 kilometres (6.2 mi) W of Mount Elkins in the Napier Mountains, Enderby Land.
Rippon Glacier is a small glacier located in Kemp Land, East Antarctica. It is close east of Seaton Glacier, flowing southward into Edward VIII Ice Shelf.
Mount King is a large, smooth-crested mountain in the eastern extremity of the Tula Mountains. Part of the Australian Antarctic Gazetteer and the SCAR Composite Gazetteer of Antarctica, it is located in Enderby Land, East Antarctica, which is claimed by Australia as part of the Australian Antarctic Territory. The head of Beaver Glacier is located very close to the base of Mount King.
Armstrong Peak is a peak, 1,470 metres (4,820 ft) high, standing 15 nautical miles (28 km) southeast of Mount Codrington in Enderby Land of East Antarctica.
The Wilkinson Peaks, also known as Langnabbane, is a group of peaks in the Napier Mountains standing 8 kilometres (5.0 mi) southeast of Mount Griffiths and 8 kilometres (5.0 mi) northeast of Mount Elkins in Enderby Land.
Mount Weller is a mountain, 1,080 m, standing west of Auster Glacier and 2 nautical miles (3.7 km) east of Reference Peak in Enderby Land. It was plotted from air photos taken by ANARE in 1956 and was named by the Antarctic Names Committee of Australia (ANCA) for G.E. Weller, a meteorologist at Mawson Station in 1961.
This article incorporates public domain material from "Mount Elkins". Geographic Names Information System . United States Geological Survey.