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General Geologic Map Lake Superior

By Geology, Geophysics, and Geochemistry Science Center April 2019 (approx.)
Lake Superior region geologic map
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Detailed Description

Generalized geologic map of the Midcontinent Rift, Lake Superior region, showing sedimentary, volcanic, and intrusive rocks and major and minor faults. The location of the Copperwood and White Pine mineral deposits are shown.

Sources/Usage

Public Domain.