Paleomagnetic and ⁴⁰Ar/³⁹Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming
By: by Stephen S. Harlan, John Wm. Geissman, and Lawrence W. Snee.
Contributors: Geissman, John William.; Snee, Lawrence W.
Series: U.S. Geological Survey professional paper ;; 1580
Publisher: U.S. G.P.O.; For sale by U.S. Geological Survey, Information Services
Published: 1997
Place of publication: Washington; Denver, CO
Language: eng
Number of pages: 16
Subjects: Geology, Stratigraphic -- Proterozoic.; Geochronometry -- Montana.; Geochronometry -- Wyoming.; Sills (Geology) -- Montana.; Dikes (Geology) -- Wyoming.
Notes: Includes bibliographical references (p. 14-16).