Divisadero Group
South American geological formation group / From Wikipedia, the free encyclopedia
Not to be confused with Divisadero Largo Formation.
The Divisadero Group is a group of geological formations in the Magallanes Basin (Chile) or Austral Basin (Argentina) of northwestern Patagonia. It overlies the Coihaique Group.[1] The group is chiefly made up of pyroclastic rocks and lavas of the calc-alkaline magma series.[1] Rocks are of andesite and rhyolite composition.[2]
Quick Facts Type, Underlies ...
Divisadero Group | |
---|---|
Stratigraphic range: Aptian–Albian | |
Type | Geologic group |
Underlies | Cerro Plataforma, La Cascada, Ligorio Márques & Cardiel Formations |
Overlies | Coihaique Group |
Lithology | |
Primary | Pyroclastic rock, lava |
Location | |
Location | Patagonia |
Coordinates | 45°30′S 72°00′W |
Region | Chubut Province Aysén Region |
Country | Argentina Chile |
Extent | Magallanes or Austral Basin |
Type section | |
Named by | Heim |
Year defined | 1940 |
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