Pasto Ventura
Area in northwestern Argentina including 14 volcanoes / From Wikipedia, the free encyclopedia
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Pasto Ventura is an area in the Catamarca Province of Argentina. It features about 14 small Pleistocene volcanoes, mostly cinder cones with associated lava flows but also lava domes, tuff rings and two maars. The volcanoes are accompanied by pyroclastic deposits and their total volume reaches about 0.42 cubic kilometres (0.10 cu mi). Argon-argon dating has yielded ages ranging from 1.3 million years to about 270,000 years for volcanic rocks in the field.
Pasto Ventura | |
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Highest point | |
Coordinates | 26°50′00″S 67°17′30″W[1] |
Faults have displaced several of the cones, and their movement reflects a tectonic environment characterized by ongoing extension of the Altiplano-Puna high plateau. Several dry valleys cross across the volcanic field and a lake (Laguna Pasto Ventura) is also located within the field. The climate in the region is currently arid but may have been wetter in the past. Vegetation consists of sparse bush.