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Geology of the southern Elkhorn Mountains, Jefferson and Broadwatercounties, Montana

Klepper, Montis Ruhl; Weeks, Robert Alden; Ruppel, Edward Thompson (1957) Geology of the southern Elkhorn Mountains, Jefferson and Broadwatercounties, Montana. U. S. Geological Survey Professional Paper, Report: P 0292, 82 pp.,1957

AuthorsKlepper, Montis Ruhl; Weeks, Robert Alden; Ruppel, Edward Thompson
Year1957
TitleGeology of the southern Elkhorn Mountains, Jefferson and Broadwatercounties, Montana
SourceU. S. Geological Survey Professional Paper, Report: P 0292, 82 pp.,1957
ISSN1044-9612
GeoRef1959-017049
Keywordsbatholiths; Boulder Batholith; Cambrian; Carboniferous; ClancyQuadrangle; Colorado Formation; Cretaceous; Devils Fence Quadrangle;economic geology; Elkhorn Mountains; Elkhorn Mountains Volcanics;faults; Geologic Formations; geologic maps; geomorphology; glacialgeology; historical geology; igneous rocks; intrusions; maps;Mesozoic; metal ores; metamorphism; Mississippian; Montana; new; newunits; Paleozoic; petrology; physiographic geology;Precambrian-Quaternary; Slim Sam formation; south half; southern;stocks; United States; Upper Cretaceous; USGS
NotesDate Issued: 1958001958

17 samples from this reference

SampleRock nameMajorTraceIsotope
50KC-24Gabbro yes
50KC-25Diorite yes
50KC-21Diorite yes
50KC-22Diorite yes
50KC-23Granodiorite yes
50KC-18Granodiorite yes
50-KC17Monzonite yes
50KC-19Granite yes
50KC-20Alaskite yes
49KC-1Granodiorite yes
40KC-2Diorite yes
49KC-3Granodiorite yes
49KC-11Granodiorite yes
49KC-4Monzonite yes
49KC-5Monzonite yes
49KC-6Gabbro yes
Welded tuffPyroclastic flow yes