Divisadero Group
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| 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 | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Region | Chubut Province Aysén Region |
| Country | Argentina, Chile |
| Extent | Magallanes or Austral Basin |
| Type section | |
| Named by | Heim |
| Year defined | 1940 |
  Divisadero Group (Argentina) | |
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]
Geographic extent
[edit | edit source]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]
See also
[edit | edit source]References
[edit | edit source]- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Aptian-Albian subaerial volcanic rocks in central Patagonia: Divisadero and Chubut Groups