⁴⁰Ar/³⁹Ar age-spectrum data for whole rock samples of the Martinsburg Formation, Lehigh Gap area, Pennsylvania /
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Format: | Government Document Book |
Language: | English |
Published: |
[Reston, Va.] :
U.S. Dept. of the Interior, Geological Survey,
1996.
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Series: | U.S. Geological Survey open-file report
96-95. |
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