Quinchilca is a volcano in Chile. 39°40′48″S 72°00′29″W / 39.68°S 72.008°W [1] It is situated south of Villarrica volcano and consists of a caldera and lava domes. [1] The volcano has a semicircular form constructed by layers of lavas and volcaniclastic rocks, with an eroded core. Volcanic rocks include basalt and basaltic andesite. [2]
Potassium-argon dating has yielded an age of 800,000 ± 600,000 on its rocks, [1] older dates such as 1.4 ± 0.6 million years have been reported as well. [2]
References
- ^ a b c "Quinchilca". Global Volcanism Program. Smithsonian Institution.
- ^ a b Lara, Luis; Rodríguez, Carolina; Moreno, Hugo; Pérez de Arce, Carlos (July 2001). "Geocronología K-Ar y geoquímica del volcanismo plioceno superior-pleistoceno de los Andes del sur (39-42°S)". Revista Geológica de Chile. 28 (1): 67–90. doi: 10.4067/S0716-02082001000100004. ISSN 0716-0208.
 | This volcanology article is a stub. You can help Wikipedia by expanding it. |
 | This Los Ríos Region location article is a stub. You can help Wikipedia by expanding it. |