San Jerónimo volcano
24°14′S 66°30′W / 24.233°S 66.500°W[1] San Jerónimo is a volcano in Argentina.
It is a monogenetic volcano like Negro de Chorrillos.[2] It formed on top of ignimbrites of Miocene age[1] of the Aguas Calientes caldera about 780,000 ± 100,000 years ago and is formed by lava, lava bombs and scoria.[3] The volcano erupted basaltic-trachyandesitic lava which propagated to distances of 8–10 kilometres (5.0–6.2 mi) from the vent.[4]
San Jerónimo is part of a 170 kilometres (110 mi) long alignment of volcanoes along the Calama-Olacapato-El Toro fault. This string of volcanoes is diverse, including calderas and stratovolcanoes on the one hand and plutons and monogenetic volcanoes on the other hand.[5] One volcano that is part of this structure is Aguas Calientes caldera,[2] on whose border the San Jerónimo volcano is constructed.[1]
References
- ^ a b c Petrinovic et al. 2006, p. 243.
- ^ a b Petrinovic et al. 2006, p. 242.
- ^ Petrinovic et al. 2006, p. 244.
- ^ Petrinovic et al. 2006, p. 245.
- ^ Petrinovic et al. 2006, p. 241.
Sources
- Petrinovic, I. A.; Riller, U.; Brod, J. A.; Alvarado, G.; Arnosio, M. (2006-04-15). "Bimodal volcanism in a tectonic transfer zone: Evidence for tectonically controlled magmatism in the southern Central Andes, NW Argentina". Journal of Volcanology and Geothermal Research. 152 (3–4): 240–252. doi:10.1016/j.jvolgeores.2005.10.008.
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