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K–Ar dates on granitoids from Archipiélago Cabo de Hornos, southernmost Chile

Published online by Cambridge University Press:  01 May 2009

M. Suárez ,
A. Puig  and
M. Hervé
M. Suárez
Affiliation:
Servicio Nacional de Geología y Minería, Agustinas No.785-6° Piso, Casilla 10465 Santiago, Chile
A. Puig
Affiliation:
Servicio Nacional de Geología y Minería, Agustinas No.785-6° Piso, Casilla 10465 Santiago, Chile
M. Hervé
Affiliation:
Servicio Nacional de Geología y Minería, Agustinas No.785-6° Piso, Casilla 10465 Santiago, Chile
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Abstract

New K–Ar mineral dates from calc-alkaline granitoids of the Archipiélago Cabo de Hornos, in the southernmost tip of South America, range from 97 to 117 Ma. This confirms that the early Cretaceous was a period of major plutonic activity in the region and expands previous radiometric information on the Patagonian Batholith concerning migration of intrusion foci with time.

Type
Articles
Information
Geological Magazine , Volume 123 , Issue 5 , September 1986 , pp. 581 - 584
Copyright
Copyright © Cambridge University Press 1986

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