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Ministry of Energy Mines and Responsible for Core Review

GeoFile 2003-16:  Petrochemistry of Mafic Rocks
within the Northern Cache Creek Terrane

by Joseph M. English, Stephen T. Johnston and Mitchell G. Mihalynuk

 

View GeoFile (PDF, 3.66 MB)

 

Preliminary geochemical data from volcanic rocks in the Nakina Region show the volcanics to be dominated by two different petrogenetic components.  Alkaline mafic volcanic rocks include Augite Porphyries of Laughing Moose Creek, and volcanogenis sediments of the Horsefeed Formation. Subalkaline mafic rocks include "magmatic knockers" of the Nimbus Melange and basaltic tuffs of Blackcaps Mountain.

 

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