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Tonsina survey data released


Last updated 1/18/2015 at Noon

The Alaska Division of Geological & Geophysical Surveys Jan. 2 published data from a 2014 Tonsina electromagnetic and magnetic geophysical survey, which will better define the extent and location of platinum group element-bearing ultramafic rocks in areas lacking outcrop, increase structural knowledge of the area, and improve geologic mapping.

The survey covers about 690 square kilometers (26...

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