Divisadero Group
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. The group is chiefly made up of pyroclastic rocks and lavas of the calc-alkaline magma series. Rocks are of andesite and rhyolite composition.
| 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 |
Divisadero Group (Argentina) | |
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