Ancud Volcanic Complex

Ancud Volcanic Complex Stratigraphic range: Oligocene–Miocene
Type	Geological formation
Sub-units	Heuihuen, Teguaco, Cocotue
Underlies	Quaternary and Neogene deposits including Lacui Formation
Overlies	Caleta Chonos Formation
Lithology
Primary	Basaltic andesite
Other	Dacite
Location
Region	Los Lagos Region
Country	Chile
Type section
Named for	City of Ancud

Ancud Volcanic Complex (Spanish: Complejo Volcánico de Ancud) is a volcanic complex of Oligocene and Miocene age located around Ancud with exposures in Chiloé Island, the Chilean mainland and smaller islets. Three subunits are recognized in the complex: Hueihuen, Teguaco and Cocotue. The complex is part of the mid-Tertiary coastal magmatic belt in south-central Chile.

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