Divisadero Group | |
Type: | Geologic group |
Period: | Albian |
Age: | Aptian–Albian |
Namedby: | Heim |
Year Ts: | 1940 |
Location: | Patagonia |
Region: | Chubut Province Aysén Region |
Country: | Argentina Chile |
Coordinates: | -45.5°N -72°W |
Underlies: | Cerro Plataforma, La Cascada, Ligorio Márques & Cardiel Formations |
Extent: | Magallanes or Austral Basin |
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.
In Chile, the formation crops out in Aysén Region[1] while in Argentina it can be found in Chubut Province.[2]
Tectonic movements during the Miocene have significantly deformed Divisadero Group.[3]