Earth:Azapa Formation

From HandWiki
Short description: Geological formation in northern Chile
Azapa Formation
Stratigraphic range: Oligocene
UnderliesOxaya Formation
Lithology
PrimaryFluvial gravel
Location
RegionArica y Parinacota Region
Country Chile

Azapa Formation (Spanish: Formación Azapa) is a geological formation in northern Chile made up of gravels of fluvial origin. It is conformably overlain by Oxaya Formation.[1] Azapa Formation is deformed by the Oxaya anticline.[2]

References

  1. 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. 
  2. "The Oxaya anticline (northern Chile): a buckle enhanced by river incision?". Terra Nova (17): 368–375. 2005.