(Map site 3.) The most abundant rock on today's trek is the Wilson Diorite. It consists mostly of quartz diorite, an igneous rock of medium gray color. It has been dated at about 120 million years old.
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(Map site 3.) The most abundant rock on today's trek is the Wilson Diorite. It consists mostly of quartz diorite, an igneous rock of medium gray color. It has been dated at about 120 million years old. Return to the June 12 geology page. | |