Cerro de las Cuevas

Coordinates: 21°35′S 68°29′W / 21.583°S 68.483°W / -21.583; -68.483[1] Cerro de las Cuevas is a 5,294 metres (17,369 ft) high volcano in the Andes.[1]

The volcano is formed by thick lava flows that surround a lava dome. A spatter cone is also found on the northeastern flank of the volcano.[1]

The volcano is constructed out of andesite. Lava flows contain clinopyroxene, olivine and quartz, the latter in form of xenocrysts. Rocks on the spatter cone are aphyric.[1]

A file of volcanoes extends from Cerro Cebollar to Cerro Palpana in south-north direction, of which Cerro de las Cuevas is the youngest volcano. Potassium-argon dating of the spatter cone on the northeastern flank of the volcano has yielded ages of 3.15±0.15 and 3.36±0.13 millions before present.[2]

References

  1. 1 2 3 4 Wigger, Peter J. (1994). Reuter, Klaus-Joachim; Scheuber, Ekkehard, eds. Tectonics of the Southern Central Andes Structure and Evolution of an Active Continental Margin. Berlin, Heidelberg: Springer Berlin Heidelberg. p. 84. ISBN 978-3-642-77353-2. Retrieved 31 August 2016.
  2. ↑ Wörner, Gerhard; Hammerschmidt, Konrad; Henjes-Kunst, Friedhelm; Lezaun, Judith; Wilke, Hans (December 2000). "Geochronology (40Ar/39Ar, K-Ar and He-exposure ages) of Cenozoic magmatic rocks from Northern Chile (18-22°S): implications for magmatism and tectonic evolution of the central Andes". Revista Geológica de Chile. Santiago: SciELO. 27 (2). doi:10.4067/S0716-02082000000200004. ISSN 0716-0208. Retrieved 1 October 2015.
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