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Preliminary map of columbium (niobium) and tantalum provinces in the conterminous United States

Open-File Report 79-576- N
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Publication type Report
Publication Subtype USGS Numbered Series
Title Preliminary map of columbium (niobium) and tantalum provinces in the conterminous United States
Series title Open-File Report
Series number 79-576
Chapter N
DOI 10.3133/ofr79576N
Edition -
Year Published 1980
Language ENGLISH
Description 1 map ;64 x 97 cm.
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