Abra Granada
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Abra Granada is a volcanic complex in the Puna de Atacama in
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. It is located approximately north of Pirquitas and is composed from a
lava dome In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions on ...
,
lava Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or un ...
s and dacitic ignimbrites centering on Cerro Granada () and are dated 9.8-7.8 Ma. Deposits erupted 7.9-5.0
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by this volcano overlie the older Granada ignimbrite. Individual volcanic centres are known as Cerro Caucani, Cerro Granada and Cerro Solterío. The Pirquitas
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is part of the volcanic complex. Other peraluminous rocks were erupted 10
mya Mya may refer to: Brands and product names * Mya (program), an intelligent personal assistant created by Motorola * Mya (TV channel), an Italian Television channel * Midwest Young Artists, a comprehensive youth music program Codes * Burmese ...
. The complex is the likely source of the Granada Ignimbrite. The ignimbrite reaches its maximum thickness in the complex.


References


Further reading

Volcanoes of Bolivia Polygenetic volcanoes Miocene lava domes {{Volcanology-stub