DOI: http://dx.doi.org/10.5027/andgeoV25n1-a02

La edad y formacion del cerro Campanario, un estratovolcan mafico de la Cordillera de Talca.

Wes Hildreth, Brad Singer, Estanislao Godoy, Francisco Munizaga

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.

How to cite this article Hildreth, W.; Singer, B.; Godoy, E.; Munizaga, F. 2010, La edad y formacion del cerro Campanario, un estratovolcan mafico de la Cordillera de Talca.. Revista Geológica de Chile 25 (1): 17-28. [doi:http://dx.doi.org/10.5027/andgeoV25n1-a02]