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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.
- Format:
- Book
- Government document
- Author/Creator:
- Harlan, Stephen S., author.
- Geissman, John William, author.
- Snee, Lawrence W., author.
- Series:
- U.S. Geological Survey professional paper ; 1580.
- U.S. Geological Survey professional paper ; 1580
- Language:
- English
- Subjects (All):
- Geology, Stratigraphic--Proterozoic.
- Geology, Stratigraphic.
- Geochronometry--Montana.
- Geochronometry.
- Geochronometry--Wyoming.
- Sills (Geology)--Montana.
- Sills (Geology).
- Dikes (Geology)--Wyoming.
- Dikes (Geology).
- Proterozoic Geologic Period.
- Montana.
- Wyoming.
- Genre:
- Online resources.
- Physical Description:
- 1 online resource (16 pages) : illustrations, maps.
- Place of Publication:
- Washington : United States Government Printing Office, 1997.
- Notes:
- "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."
- Includes bibliographical references (pages 14-16).
- Online resource, PDF version; title from PDF title page (USGS, October 16, 2014).
- Other Format:
- Print version: Harlan, Stephen S. Paleomagnetic and ⁴⁰Ar/³⁹Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming
- OCLC:
- 896811450
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