Abra Granada
From Wikipedia, the free encyclopedia
| Country | Argentina |
|---|---|
| Region | Puna de Atacama |
| Age | 9.8-7.8 Ma |
| Last eruption | 7.9-5.0 mya |
22°32′S 66°32′W / 22.533°S 66.533°WAbra Granada is a volcanic complex in the Puna de Atacama in Argentina. It is located approximately 45 kilometres (28 mi) north of Pirquitas and is composed from a lava dome, lavas and dacitic ignimbrites centering on Cerro Granada (5,700 metres (18,700 ft)) and are dated 9.8-7.8 Ma.[1] Deposits erupted 7.9-5.0 mya by this volcano overlie the older Granada ignimbrite.[2] Individual volcanic centres are known as Cerro Caucani, Cerro Granada and Cerro Solterío. The Pirquitas mine is part of the volcanic complex.[3]
Other peraluminous rocks were erupted 10 mya.[4] The complex is the likely source of the Granada Ignimbrite. The ignimbrite reaches its maximum thickness in the complex.[5]
