Paleomagnetic and ⁴⁰Ar/³⁹Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming / by Stephen S. Harlan, John Wm. Geissman, and Lawrence W. Snee (U.S. Geological Survey professional paper ; 1580)
Paleomagnetic and ⁴⁰Ar/³⁹Ar geochronologic data from Late Proterozoic mafic dikes and sills, Montana and Wyoming / by Stephen S. Harlan, John Wm. Geissman, and Lawrence W. Snee
(U.S. Geological Survey professional paper ; 1580)