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Correlation of the Copps and Tyler formations of the Gogebic iron districtAtwater, Gordon I., January 1935 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1935. / Thesis title page added with title: Correlation of the Tyler and Copps formations of the Gogebic iron district, Michigan and Wisconsin. Typescript. Abstract: 1 leaf, at end. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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