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Westarctica (talk | contribs) (Sourced from Wikipedia, with additional information from: Geology of the Whitmore Mountains ( Antarctica).. Available from: https://www.researchgate.net/publication/291079134_Geology_of_the_Whitmore_Mountains_Antarctica [accessed Mar 25 2018].) |
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[[File:Whitmore Mountains - Mt Chapman.jpg|thumb|350px|right|Survey picture of the Whitmore Mountains.]] | |||
The '''Whitmore Mountains''' (Coordinates: 82°35′S 104°30′W) are an isolated mountain range of the Transantarctic Mountains System, located in the [[Marie Byrd Land]] region of [[Westarctica]]. | The '''Whitmore Mountains''' (Coordinates: 82°35′S 104°30′W) are an isolated mountain range of the Transantarctic Mountains System, located in the [[Marie Byrd Land]] region of [[Westarctica]]. | ||
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===Mount Chapman=== | ===Mount Chapman=== | ||
[[File:Mt Chapman.gif|thumb|right|Picture of Mt. Chapman taken by William H. Chapman during his initial survey.]] | |||
Mount Chapman (82°35'S 105°55'W) is a triple-peaked mountain mountain rising to 2715 m high. It has very steep sides and a large rock cliff on its north side, situated at the western end of the Whitmore Mountains. Named by Advisory Committee on Antarctic Names for William H. Chapman of U.S. Geological Survey, cartographer with the Horlick Mountains Traverse (1958-59), who made a survey of the Whitmore Mountains on Jan. 2, 1959. | Mount Chapman (82°35'S 105°55'W) is a triple-peaked mountain mountain rising to 2715 m high. It has very steep sides and a large rock cliff on its north side, situated at the western end of the Whitmore Mountains. Named by Advisory Committee on Antarctic Names for William H. Chapman of U.S. Geological Survey, cartographer with the Horlick Mountains Traverse (1958-59), who made a survey of the Whitmore Mountains on Jan. 2, 1959. | ||
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==Geology of the mountains== | ==Geology of the mountains== | ||
[[File:Whitmore GPS install.jpg|thumb|right|Survey team working at the Whitmore Mountains.]] | |||
Bedrock consists of predominant igneous rocks and minor meta-sedimentary rocks. The Mount Seelig Granite, a coarsely crystalline porphyritic granite, comprises approx 95% of the exposed bedrock. A second granite, the Linck Nunataks Granite, is a finely crystalline equigranular rock that crosscuts the Mount Seelig Granite. The Linck Nunataks Granite is considered to be a late-phase differentiate of the Mount Seelig Granite. | Bedrock consists of predominant igneous rocks and minor meta-sedimentary rocks. The Mount Seelig Granite, a coarsely crystalline porphyritic granite, comprises approx 95% of the exposed bedrock. A second granite, the Linck Nunataks Granite, is a finely crystalline equigranular rock that crosscuts the Mount Seelig Granite. The Linck Nunataks Granite is considered to be a late-phase differentiate of the Mount Seelig Granite. | ||