Bulletin of the United States Geological SurveyThe Survey., 1911 |
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andesite aplite appears asbestos basin biotite brown Bulletin 213 Bulletin 430 burning calcite Cambrian Canyon carbonate cent of wet chalcocite chalcopyrite chert clay color contains copper country rock County Creek Cretaceous diabase dikes diorite district dolomite east exposed fault feet deep feet thick feldspar folds fossils fractures fuller's earth galena Geological Survey gneiss gold grained granite gravel gray Gulch gypsum Idaho inches iron kaolin Lake limestone located lodes mass material mica miles Mineral Resources U. S. mines monzonite Mountain northeast northwest occurs oolitic outcrop oxide Park City formation pegmatite phosphate beds phosphate deposits phosphate rock porphyry portion probably prospects pyrite quadrangle quarry quartz quartzite range region Rept rhyolite ridge River sandstone sandy schist shaft shale shaly shows side silver slope southeast southwest specimen sphalerite strata strike sulphur surface syncline township tunnel U. S. Geol upper valley vein vicinity zone
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