LGD: CA |
LGDTF: US |
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At Goldstrike, Cenozoic volcanic and sedimentary rocks rest unconformably on a basement of deformed middle and late Paleozoic carbonate and siliciclastic rocks. The sequence is cut by steep, arcuate oblique-slip faults that form a sequence of horsts and grabens. Mineralization is focused at the intersections of the unconformity with these faults.

Gold mineralization on surface and in shallow drill holes has been discovered over the entire property, wherever the basal unconformity of the Tertiary sequence is exposed, and particularly where it is cut by faults.  Grades of up to 13 ounces per ton of gold were encountered in past drilling.

In the Paleozoic section, mineralization is related to faults, and is often open to depth.