������Ar/�����Ar age-spectrum data of Neogene and younger basalts in west central Colorado /
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Format: | Government Document Book |
Language: | English |
Published: |
Denver, Colo. :
U.S. Dept. of the Interior, U.S. Geological Survey,
1998
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Series: | U.S. Geological Survey open-file report ;
98-243 |
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