Catégories
Documents disponibles dans cette catégorie (5)
Faire une suggestion
Bulletin : texte imprimé
U.S. Geological Survey professional paper, 1696 - 40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana
Stephen S. Harlan, Auteur | 2005
Bulletin : texte imprimé
U.S. Geological Survey professional paper, 1657 - Composition, age, and petrogenesis of Late Cretaceous intrusive rocks in the central Big Belt Mountains, Broadwater and Meagher counties, Montana
Edward A. Du Bray, Auteur ; L.W. Snee, Auteur | 2002Cretaceous intrusions hosted by the Proterozoic Newland Formation. The northern intrusion, centered on Boulder Baldy, consists of outer, intermediate, and core zones composed of aegirine-augite quartz monzonite, hornblende quartz monzodiorite, a[...]
Bulletin : texte imprimé
U.S. Geological Survey professional paper, 1652 - Integrated investigations of environmental effects of historical mining in the Basin and Boulder Mining Districts, Boulder River watershed, Jefferson County, Montana
S. E. Church, Auteur ; S. E. Finger, Auteur ; D. A. Nimick, Éditeur scientifique | 2004
Bulletin : texte imprimé
U.S. Geological Survey professional paper, 1715 - Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana
Edward A. Du Bray, Auteur ; Stephen S. Harlan, Auteur ; Anna B. Wilson, Auteur | 2006
Bulletin : texte imprimé
U.S. Geological Survey professional paper, 1682 - Role of limnological processes in fate and transport of nitrogen and phosphorous loads delivered into Coeur d'Alene Lake and Lake Pend Oreille, Idaho, and Flathead Lake, Montana
Paul. F. Woods, Auteur | 2004
