Earth:Oxaya Formation
From HandWiki
Short description: Geological formation in northern Chile
| Oxaya Formation Stratigraphic range: Late Oligocene–Early Miocene | |
|---|---|
| Underlies | Zapahuira Formation, Huaylas Formation |
| Overlies | Azapa Formation, Lupica Formation? |
| Thickness | ca. 1,000 m (3,300 ft) |
| Lithology | |
| Primary | Ignimbrite |
| Location | |
| Region | Arica y Parinacota Region |
| Country | Chile |
| Type section | |
| Named for | Oxaya |
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] Oxaya Formation is deformed by the Oxaya anticline.[2]
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". Fourth ISAG. Goettingen, Germany. pp. 249–252. http://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers09-03/010022667.pdf.
- ↑ "The Oxaya anticline (northern Chile): a buckle enhanced by river incision?". Terra Nova (17): 368–375. 2005.
 |  |
