The age and constitution of Cerro Campanario, a mafic stratovolcano in the Andes of Central Chile
ABSTRACT Cerro Campanario, a towering landmark on the continental divide near Paso Pehuenche, is a glacially eroded remnant of a mafic stratovolcano that is much younger than previously supposed. Consisting of fairly uniform basaltic andesite, rich in olivine and plagioclase, the 10-15 km³ edifice grew rapidly near the end of the middle Pleistocene, about 150-160 ka, as indicated by 40Ar/39Ar and unspiked K-Ar analyses of its lavas.
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| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Servicio Nacional de Geología y Minería (SERNAGEOMIN)
1998
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| Online Access: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02081998000100002 |
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