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John Wm. Geissman
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Journal Article
Paleomagnetism and geochronology of sills of the Doherty Mountain area, southwestern Montana: Implications for the timing of fold-and-thrust belt deformation and vertical-axis rotations along the southern margin of the Helena salient
Publisher: Geological Society of America
Published: 01 September 2008
GSA Bulletin (2008) 120 (9-10): 1091–1104.
Journal Article
Paleomagnetic and isotopic dating of thrust-belt deformation along the eastern edge of the Helena salient, northern Crazy Mountains Basin, Montana
Publisher: Geological Society of America
Published: 01 April 1988
GSA Bulletin (1988) 100 (4): 492–499.