Cerro Ascotan
21°41′S 68°07′W / 21.683°S 68.117°W[1] Cerro Ascotan (also known as del Jardin[2]) is a volcano on the border between Chile and Argentina. It is 5,473 metres (17,956 ft) high,[3] 1,770 metres (5,810 ft) above the terrain and a maximum slope in the summit area of 26°. A breach in the edifice is 1.9 kilometres (1.2 mi) wide and 3.4 kilometres (2.1 mi) long, with an azimuth of 252°.[1] The current snowline lies between 5,700–5,900 metres (18,700–19,400 ft); during the Pleistocene it was lower at 4,900–5,000 metres (16,100–16,400 ft).[4] The volcano's summit, about one third thereof, was removed by a large explosion,[2] with debris thrown at large distances.[5] Volcanic activity probably occurred during the Pleistocene.[3]
References
- ^ a b Francis, P. W.; Wells, G. L. (July 1988). "Landsat Thematic Mapper observations of debris avalanche deposits in the Central Andes". Bulletin of Volcanology. 50 (4). Springer-Verlag: 258–278. doi:10.1007/BF01047488. ISSN 1432-0819. Retrieved 13 September 2015.
- ^ a b Werner Zeil (1964). Geologie von Chile: Mit 10 Ausklapptafeln, 43 Textabbildungen und 57 abbildungen auf Tafeln (in German). Gebr. Borntraeger. p. 104.
- ^ a b "Ascotan". Global Volcanism Program. Smithsonian Institution.
- ^ Ram Bali Singh (1 January 1992). Dynamics of Mountain Geosystems. APH Publishing. p. 165. ISBN 978-81-7024-472-1.
- ^ Grove, Lilly (February 1893). "Deserts of Atacama and Tarapaca". Scottish Geographical Magazine. 9 (2): 57–65. doi:10.1080/00369229308732601. Retrieved 13 September 2015.
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