Rocky Mountain Geology cover volume 48, number 1

Spring 2013

The Nathrop Domes, Colorado: Geochemistry and petrogenesis of a topaz rhyolite 
Daniel Wegert; Don Parker; Minghua Ren

U-Pb zircon age constraints on two episodes of Paleoproterozoic magmatism and development of the Grizzly Creek shear zone, White River Uplift, western Colorado, U.S.A. 
James V. Jones, III; Colin A. Shaw; Joseph L. Allen; Todd Housh

Detrital zircon geochronology from Cenomanian–Coniacian strata in the Bighorn Basin, Wyoming, U.S.A.: Implications for stratigraphic correlation and paleogeography 
Steven R. May; Gary G. Gray; Lori L. Summa; Norman R. Stewart; George E. Gehrels; Mark E. Pecha

South Fork Fault as a gravity slide: Its break-away, timing, and emplacement, northwestern Wyoming, U.S.A.: COMMENT 
Thomas A. Hauge

South Fork Fault as a gravity slide: Its break-away, timing, and emplacement, northwestern Wyoming, U.S.A.: REPLY 
Timothy L. Clarey

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