Misplaced Pages

#95904

22-645: Ward Valley is in the Denton Hills . It is one of the McMurdo Dry Valleys . It lies between Hidden Valley to the northeast and Howchin Glacier to the southwest. It opens into the Koettlitz Glacier to the southeast. Download coordinates as: 78°10′S 163°27′E  /  78.167°S 163.450°E  / -78.167; 163.450 . Small glacier between Terminus Mountain and Howchin Glacier on

44-511: A crewman of United States Coast Guard Cutter (USCGC) Glacier, who was killed in an offloading accident at McMurdo Station, February 8, 1979. 78°09′43″S 163°41′58″E  /  78.16189°S 163.69957°E  / -78.16189; 163.69957 . An ice-free hill at 931 metres (3,054 ft) standing 1.5 kilometres (0.93 mi) southwest of Janosy Hill, in the Porter Hills, Scott Coast. Named by US-ACAN (1994) after Terry J. Wilson,

66-701: A geologist with the Byrd Polar Research Center geological party in Victoria Land, 1989-90. Royal Society Range, 1991-92, a principal investigator in United States Antarctic Project (United States ArmyP) Transantarctic Mountains deformation network research over several field seasons through 2005-06. 78°09′00″S 163°44′00″E  /  78.15°S 163.7333333°E  / -78.15; 163.7333333 . A hill rising to 913 metres (2,995 ft) high just west of Mirabilite Pond in

88-687: A group of rugged foothills, 24 nautical miles (44 km; 28 mi) long southwest–northeast and 9 nautical miles (17 km; 10 mi) wide, to the east of the Royal Society Range on the Scott Coast , Victoria Land , Antarctica. The Denton Hills comprise a series of eastward-trending ridges and valleys circumscribed by Howchin Glacier , Armitage Saddle , Blue Glacier , the coast, and Walcott Bay . The highest summits, Mount Kowalczyk at 1,703 metres (5,587 ft), and Goat Mountain at 1,634 metres (5,361 ft), rise from Hobbs Ridge in

110-821: Is referred to as the Koettlitz Glacier Alkaline Province. Cambrian tectonic convergence, continental collision and plate subduction led to the emplacement of calc-alkaline and adakitic granitoids. This period of mountain building is referred to as the Ross Orogeny. The Royal Society Range contains over 50 basaltic vents, ranging in size from tiny mounds to cinder cones up to 300 meters (985 feet) high. Dating of surface material indicates they were active earlier than 15 million years ago (e.g. Heald Island ) and as recently as 80,000 years ago, with glacier-bound tephra layers suggesting even more recent Holocene activity. The vast majority of vents are located in

132-595: The Bowers Piedmont Glacier and the Blue Glacier to the east. The Blue Glacier separates the range from the Denton Hills , which run from north to south along the coast of McMurdo Sound in the northeast, and along the northwest side of the Koettlitz Glacier further south. The Pyramid, the southeast tip of the range, is on the north side of the Koettlitz Glacier. The southwest and west of the range lies to

154-669: The British National Antarctic Expedition, 1901–04 , under Robert Falcon Scott . The hills were mapped in detail by United States Antarctic Research Program (USARP) and New Zealand Antarctic Research Programme (NZARP) personnel in the years following the International Geophysical Year , 1957–58. The hills were named by the United States Advisory Committee on Antarctic Names (US-ACAN; 1999) after Professor George H. Denton of

176-653: The Kukri Hills , southeast of the Quartermain Mountains , and northeast of the Worcester Range . With its summit at 4,025 metres (13,205 ft), the massive Mount Lister forms the highest point in this range. Mount Lister is located along the western shore of McMurdo Sound between the Koettlitz , Skelton and Ferrar glaciers. Other notable local terrain features include Allison Glacier , which descends from

198-574: The United States Geological Survey . Royal Society Range The Royal Society Range ( 78°10′S 162°40′E  /  78.167°S 162.667°E  / -78.167; 162.667  ( Royal Society Range ) ) is a majestic range of mountains in Victoria Land, Antarctica, rising to 4,025 metres (13,205 ft) along the west shore of McMurdo Sound between the Koettlitz, Skelton and Ferrar Glaciers. They are south of

220-667: The Department of Geological Sciences and the Institute for Quaternary Studies, University of Maine , who conducted geological research in the Transantarctic Mountains and Victoria Land (including work in these hills), 1958–99, making more than 25 visits to Antarctica. Denton Glacier is also named after him. Download coordinates as: Major features include, from north to south: [REDACTED]  This article incorporates public domain material from websites or documents of

242-554: The Porter Hills. Named by US-ACAN (1994) after Robert J. Janosy, a geologist with the Byrd Polar Research Center geological field party to the Royal Society Range, 1991-92. 78°11′00″S 163°32′00″E  /  78.1833333°S 163.5333333°E  / -78.1833333; 163.5333333 . A ridge of hills lying between Ward Valley and the Alph River . Named by New Zealand Geographic Board (NZGB) in 1994 in connection with

SECTION 10

#1733084854096

264-626: The Range, and though uplift did not cease, its magnitude is such that it has not drastically affected the landscape, having progressed only 67 meters in the last 8 million years. Neoproterozoic tectonic extension along the edge of the East Antarctic Craton between the Skelton and Koettlitz Glaciers resulted in the emplacement of coarse grained alkaline igneous intrusive rocks (ranging from gabbro to A-type granite). This area of alkaline intrusives

286-520: The Ross Sea coast. The entire region is cut by north–south trending longitudinal faults , east–west trending transverse faults, and structurally related dike swarms . Tectonic and fluvial activity have featured very heavily in the recent geologic history of the Royal Society Range. Following the extension of the Ross Sea Basin (c. 55 million years ago), an episode of uplift drove the creation of

308-408: The Royal Society Range rift flank. At this time a tectonic (though not accretionary ) wedge, up to 6 km thick on the coast, was present, though it quickly began to erode due primarily to fluvial processes, and the Royal Society Range was cut down near to its present appearance by the mid-Miocene . Relatively limited glacial action since that time has preserved much of the fluvial architecture of

330-531: The Royal Society, 1895–1900. The Royal Society provided financial support to BrNAE and its members had assisted on the committee which organized the expedition. The Royal Society Range consists of a Precambrian igneous and meta-igneous basement complex overlain by Devonian - to Triassic -age sandstones , siltstones and conglomerates of the Beacon Supergroup which dip shallowly westward away from

352-656: The adjacent Alph River, an earlier name inspired by the 1816 work Kubla Khan by English poet Samuel Taylor Coleridge . The name Xanadu used in the poem is an archaic romanisation of Shangdu , the summer capital of Kublai Khan 's Yuan dynasty in China. [REDACTED]  This article incorporates public domain material from websites or documents of the United States Geological Survey . Denton Hills The Denton Hills ( 78°05′00″S 163°55′00″E  /  78.0833333°S 163.9166667°E  / -78.0833333; 163.9166667  ( Denton Hills ) ) are

374-772: The east of the Skelton Glacier , which rises in the Skelton Névé to the west of the range and flows south into the Ross Ice Shelf . The northwest of the range lies to the east and south of the Ferrar Glacier , which flows east along the north of the range to New Harbour in McMurdo Sound. The surrounding glaciers are: Download coordinates as: Major features include: [REDACTED]  This article incorporates public domain material from websites or documents of

396-750: The east side of the Royal Society Range in Victoria Land. Named by Taylor of the British Antarctic Expedition, 1910–13 (BrAE) for L. Ward, a Tasmanian geologist. 78°11′00″S 163°42′00″E  /  78.1833333°S 163.7°E  / -78.1833333; 163.7 . A meltwater stream from the Ward Glacier. It flows eastward through Ward Valley and Ward Lake into Alph Lake. Named by New Zealand Geographic Board (NZGB) (1994) in association with Ward Glacier and Ward Lake. 78°10′S 163°35′E  /  78.167°S 163.583°E  / -78.167; 163.583 . A small lake, formed at

418-440: The foothills of the Royal Society mountains just north of Koettlitz Glacier , and most are Quaternary in age. Most emanating flows are 3–10 meters thick and less than 4 kilometers long. The composition, with very few exceptions, is porphyritic basanite with primarily olivine and clinopyroxene phenocrysts, though some phenocrystic plagioclase is also present. [REDACTED] [REDACTED] The Royal Society range borders

440-579: The northern part of the foothills. Elevations decrease southward as in Kahiwi Maihao Ridge , 1,045 metres (3,428 ft) high near the center of the group and the Xanadu Hills , 820 metres (2,690 ft) high at the southern end. The principal glaciers ( Hobbs , Blackwelder , Salmon , Garwood , Joyce , Rivard , Miers , Adams , Ward ) flow east but have receded, leaving several dry valleys. The Denton Hills were discovered and roughly mapped by

462-585: The snout of the Ward Glacier, on the east side of the Royal Society Range in Victoria Land. Named by the BrAE (1910-13) after Ward Glacier. 78°09′29″S 163°38′42″E  /  78.15805°S 163.64499°E  / -78.15805; 163.64499 . A series of ice-free hills which rise to 931 metres (3,054 ft) in Wilson Hill and extend west-east between Hidden Valley and Ward Valley. Named by US-ACAN (1994) after Raymond C. Porter, Electronics Technician, USCG,

SECTION 20

#1733084854096

484-539: The west slopes of the Royal Society Range into Skelton Glacier. The range was probably first seen by Captain James Clark Ross in 1841. It was explored by the British National Antarctic Expedition (BrNAE; 1901–04) under Robert Falcon Scott , who named the range after the Royal Society and applied names of its members to many of its peaks. For example, Mount Lister was named for Lord Joseph Lister , President of

#95904