Mount Sidley
| Mount Sidley | ||
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| height | 4181 m | |
| location | Marie Byrd Land , Antarctica | |
| Mountains | Executive Committee Range | |
| Coordinates | 77 ° 2 ′ 0 ″ S , 126 ° 6 ′ 0 ″ W | |
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| Type | Shield volcano , extinct | |
| First ascent | Bill Atkinson in January 1990 | |
 Topographic map (scale 1: 250,000) |
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The Mount Sidley is an extinct shield volcano northeast of Mount laundry and with 4181 meters the highest mountain in Marie Byrd Land in West Antarctica .
The volcano is a vast, mostly snow-capped mountain and the tallest and most impressive of the five extinct volcanoes that make up the Executive Committee Range . It originated about 5.7–4.2 million years ago. The summit is shaped by a spectacular caldera , a trough-shaped collapse crater.
The mountain was discovered by the American polar explorer Richard Evelyn Byrd during an overflight by plane on November 18, 1934 as part of his second Antarctic expedition (1933-1935). The volcano bears the name of Mabelle Emma Sidley (1877–1938), the daughter of the entrepreneur William Horlick (1846–1936), sponsor of this research trip.
The first documented ascent took place in January 1990 by New Zealander Bill Atkinson.
Web links
- Mount Sidley in the Geographic Names Information System of the United States Geological Survey .
- Mount Sidley on geographic.org (English).
- Skiing the Pacific Ring of Fire and Beyond: Mount Sidley. In: skimountaineer.com. Amar Andalkar (English).
Individual evidence
- ↑ Amanda C. Lough et al .: Seismic detection of an active subglacial magmatic complex in Marie Byrd Land, Antarctica . In: Nature Geoscience . tape 6 , November 17, 2013, p. 1031–1035 , doi : 10.1038 / ngeo1992 (English, freely available online from Washington University in St. Louis [PDF; 952 kB ]).
- ^ Damien Gildea: Mountaineering in Antarctica: complete guide . Primento, 2015, ISBN 978-2-511-03134-6 ( google.de [accessed on November 9, 2019]).