Oxaya Formation
| Oxaya Formation Stratigraphic range: Late Oligocene–Early Miocene | |
|---|---|
| Underlies | Zapahuira Formation, Huaylas Formation |
| Overlies | Azapa Formation |
| Thickness | ca. 1000 m |
| Lithology | |
| Primary | Ignimbrite |
| Location | |
| Region | Arica y Parinacota Region |
| Country | Chile |
Oxaya Formation (Spanish: Formación Oxaya) is a geological formation in northern Chile made up of ignimbrite sheets. The formation formed about 25 to 19 million years ago in the Late Oligocene and Early Miocene.[1]
References
- ↑ García, Marcelo; Herail, Gérard; Charrier, Reynaldo (1999). Age and structure of the Oxaya Anticline: A major feature of the Miocene compressive structures of northernmost Chile (PDF). Fourth ISAG. Goettingen, Germany. pp. 249–252.
| Terranes |  | |
|---|---|---|
| Sedimentary formations and groups | ||
| Batholiths | ||
| Metamorphic complexes |
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| Faults | ||
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