Araral
Cerro Araral is an extinct volcano located in the Andes on the border between Chile and Bolivia in the Potosí Department and in the Antofagasta Region. It has a height of 5647 metres, rising over a base of 3900 metres and covers an area of 109.4 square kilometres (42.2 sq mi). The edifice has a volume of 43.4 cubic kilometres (10.4 cu mi), down from 47.2 cubic kilometres (11.3 cu mi) due to erosion. Based on the erosion rate, the volcano is 1.9-2.75 and forms an alignment with Cerro Ascotan. Its formation may be linked to the Altiplano-Puna Magma Body, which appear to have contributed to part of Araral's magmas. The modern snowline on the mountain lies at more than 5,700 metres (18,700 ft) altitude. There are archeological sites at its base and on its flanks. The volcanism is at first andesitic and later becomes intermediary between andesite and basalt, with olivine, plagioclase and pyroxene.
See also
References
- ^ Karátson, D.; Telbisz, T.; Wörner, G. (February 2012). "Erosion rates and erosion patterns of Neogene to Quaternary stratovolcanoes in the Western Cordillera of the Central Andes: An SRTM DEM based analysis". Geomorphology. 139–140: 122–135. Bibcode:2012Geomo.139..122K. doi:10.1016/j.geomorph.2011.10.010.
- ^ Ochsenius, Claudio (1986). "La Glaciación Puna durante el Wisconsin, Desglaciación y Máximo Lacustre en la Transición Wisconsin-Holoceno y Refugios de Megafauna Postglaciales en la Puna y Desierto de Atacama" (PDF). Revista de Geografía Norte Grande (in Spanish). 29–58 (13). Archived from the original (PDF) on 2016-03-04. Retrieved 13 September 2015.
- ^ Mashego, Mapaseka; González-Maurel, Osvaldo; Le Roux, Petrus; Godoy, Benigno (2023). The petrogenesis of the Pliocene Araral stratovolcano in the Andean Central Volcanic Zone (CVZ), northern Chile (PDF). GEOCONGRESS 2023 ABSTRACTS. p. 282.
- ^ González-Maurel, Osvaldo; le Roux, Petrus; Godoy, Benigno; Troll, Valentin R.; Deegan, Frances M.; Menzies, Andrew (15 November 2019). "The great escape: Petrogenesis of low-silica volcanism of Pliocene to Quaternary age associated with the Altiplano-Puna Volcanic Complex of northern Chile (21°10′-22°50′S)". Lithos. 346–347: 105162. doi:10.1016/j.lithos.2019.105162. ISSN 0024-4937. S2CID 201291787.
- ^ Ram Bali Singh (1 January 1992). Dynamics of Mountain Geosystems. APH Publishing. p. 165. ISBN 978-81-7024-472-1.
- ^ Stehberg, Rubén; Cárdenas, Ulises; Cerda, Juan Carlos; Stehberg, Rubén; Cárdenas, Ulises; Cerda, Juan Carlos (2023). "El Camino del Inca en el salar de Ascotán". Estudios atacameños. 69. doi:10.22199/issn.0718-1043-2023-0016. ISSN 0718-1043.
- ^ Zeil, Werner (December 1959). "Junger Vulkanismus in der Hochkordillere der Provinz Antofagasta (Chile)". Geologische Rundschau (in German). 48 (1): 218–232. Bibcode:1959GeoRu..48..218Z. doi:10.1007/BF01801827. ISSN 1432-1149. S2CID 128937768.
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