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Record Nr. |
UNINA9910709678203321 |
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Autore |
Harlan Stephen S. |
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Titolo |
Paleomagnetic and ⁴°Ar/³⁹Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming / / by Stephen S. Harlan, John Wm. Geissman, and Lawrence W. Snee |
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Pubbl/distr/stampa |
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Washington : , : United States Government Printing Office, , 1997 |
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Descrizione fisica |
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1 online resource (16 pages) : illustrations, maps |
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Collana |
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U.S. Geological Survey professional paper ; ; 1580 |
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Soggetti |
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Geology, Stratigraphic - Proterozoic |
Geochronometry - Montana |
Geochronometry - Wyoming |
Sills (Geology) - Montana |
Dikes (Geology) - Wyoming |
Dikes (Geology) |
Geochronometry |
Geology, Stratigraphic |
Proterozoic Geologic Period |
Sills (Geology) |
Montana |
Wyoming |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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"Paleomagnetic and 40Ar/39Ar results from mafic dikes and sills in northwestern Wyoming and western Montana indicate that they were emplaced during a regional magmatic event at 780 to 770 Ma." |
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Nota di bibliografia |
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Includes bibliographical references (pages 14-16). |
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