Paleomagnetic and 40[superscript] Ar/39[superscript] Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming /
Harlan, Stephen S.
Geissman, John William.
Snee, Lawrence W.
Washington : U.S. G.P.O. ; Denver, CO : For sale by U.S. Geological Survey, Information Services,
1997.
Includes bibliographical references (p. 14-16).
Geology, Stratigraphic
Geochronometry
Geochronometry
Sills (Geology)
Dikes (Geology)