Summary of miscellaneous potassium-argon age measurements, U.S. Geological Survey, Menlo Park, California, for the years 1972-74 /
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| Format: | Government Document Book |
| Language: | English |
| Series: | Geological Survey circular ;
727. |
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| Physical Description: | iii, 13 pages ; 26 cm. |
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| Bibliography: | Bibliography: pages 12-13. |