110 resultados para Ore deposits.
em University of Michigan
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Vita.
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"Contract AT(49-6)-991."
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"Contract AT(49-6)-991."
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"June 18, 1951 [Site Issuance Date]."
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"August 1, 1951 [Site Issuance Date]."
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Mode of access: Internet.
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At head of title: United States Department of the interior.
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Bibliography: p.837-907.
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pt. I. Base metals.--pt. II. The Witwatersrand and Pilgrimsrest goldfield and similar occurrences.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Cover title.
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Mode of access: Internet.
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Includes bibliographical references.