 | | Report (issue) | | IGNEOUS GEOLOGY OF THE NORTHERN SHOSHONE RANGE, NEVADA GEOLOGICAL SURVEY PROFESSIONAL PAPER .465 Tectonic...Igneous Geology of the Northern Shoshone Range Nevada By JAMES GILLULY and OLCOTT GATES With sections...PROFESSIONAL PAPER 465 Prepared in cooperation with the Nevada Bureau of Mines UNITED STATES GOVERNMENT PRINTING...Brock Canyon Formation _______________ _ Antler Peak Limestone ______ ----- _-----Havallah Formation...____ ____ -- -------- - Indian Creek valley, Mount Lewis quadrangle _____________________________ _ _ Sedimentary |  | | Report (issue) | | Petrography of the fresh rock .......... ... Plagioclase .......................... Potash feldspar ................. Alkali granite porphyry of Judith Peak ........... Distribution....................................... Alkali granite porphyry of Judith Peak............. 146 146 148 148 151 153 126 126 129...and croas-aectiorsof the Judith Mountains, Fergus County, Montana. ........................ In pocket 2...Fine-grained quartz monzonite porphyry from Burnette Peak....................... 31 5. A. Medium-grained quartz |  | | Report (issue) | | topographic maps covering much of the area. Many of the mining men and other residents of the San Juan region...___________-__-_-_ Mesaverde group ___________________________ Lewis shale ________________________________ Pictured...Chemical analyses ______________________ Sunshine Peak rhyolite._____________________ Occurrence and general...________'___________ The quartz latite of Chiquita Peak-Green Ridge_ ______________________________ Outcrops..._______________ Quartz latite of the San Antonio Peak domes_ ______________________________ Latite-basalt |
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