Ancud Volcanic Complex

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.[1] The complex is part of the mid-Tertiary coastal magmatic belt in south-central Chile.[2]

Ancud Volcanic Complex
Stratigraphic range: OligoceneMiocene
TypeGeological complex
Sub-unitsHeuihuen, Teguaco, Cocotue
UnderliesQuaternary and Neogene deposits including Lacui Formation
OverliesCaleta Chonos Formation
Lithology
PrimaryBasaltic andesite
OtherDacite
Location
Coordinates41.9°S 73.8°W / -41.9; -73.8
RegionLos Lagos Region
Country Chile
ExtentChiloé Archipelago
Type section
Named forAncud
Ancud Volcanic Complex (Chile)

See also

References

  1. Valenzuela Ayala, Eduardo (1982). "Estratigrafía de la Boca Occidental del Canal de Chacao, X Región, Chile". Congreso Geológico Chileno (in Spanish). 3, Actas. pp. A343–A376.
  2. Muñoz, Jorge; Troncoso, Rosa; Duhart, Paul; Crignola, Pedro; Lang, Farmer; Stern, Charles R. (2000), "The relation of the mid-Tertiary coastal magmatic belt in south-central Chile to the late Oligocene increase in plate convergence rate", Andean Geology, 27 (2): 341–492
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