Olca is a stratovolcano on the border of Chile and Bolivia. It lies in the middle of a 15 km long ridge composed of several stratovolcanos. Cerro Minchincha lies to the west and Paruma to the east. It is also close to the pre-Holocene Cerro Paruma. It is andesitic and dacitic in composition, with lava flows extending several kilometres north of the peak. The only activity from the ridge during historical times was a flank eruption from 1865 to 1867. The exact source of this eruption is unclear.
Siebert L, Simkin T (2002-). Volcanoes of the World: an Illustrated Catalog of Holocene Volcanoes and their Eruptions. Smithsonian Institution, Global Volcanism Program Digital Information Series, GVP-3, (http://www.volcano.si.edu/world/)
Categories: Stratovolcanoes | Subduction volcanoes | Volcanoes of Chile | Mountains of Chile | Volcanoes of Bolivia | Mountains of Bolivia
OLCA represents that the Permittee has not always acted in accordance with the terms of the existing permit and, because of that, there should be someone who monitors its actions to ensure compliance or bring violations to the Department’s attention.
OLCA has not identified anything specifically that was done by the Permittee that was in violation of the current permit.
OLCA has demonstrated an adequate environmental interest, its members are those who are affected most directly by the continued operation of this facility.
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