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altered alunite andesitic Basin beds biotite bittern brick brine Bull calcareous calcite carbonate carnotite cent chalcopyrite chloride clay coarse color Colorado contains copper country rock County Creek Cretaceous crystals depth dikes east exposed fault feet thick feldspar fissure flows formation fuller's earth Geological Survey Geology gold grains granodiorite gravels gray groundmass Gulch gypsum hornblende Idaho igneous inches intrusive iron Lake lamprophyre limestone locally lode lower Maccrady mass material Mesa mica miles Mineral Resources U. S. Mountains northeast northwest occur orthoclase outcrop oxidized pegmatite phosphate places plagioclase porphyry potash potash salts present probably prospect pyrite quartz quartzite region reported Rept rhyolite ridge River roscoelite Saltville samples sand sandstone schist shaft shale slopes southwest stopes streams sulphide sulphur deposits surface thin tunnel U. S. Geol United States Geological upper Utah Valley vanadium vein vicinity zone
Page 258 - Government publications, except those to which a price is affixed, can be obtained free by applying to the Director, United States Geological Survey, Washington, DC The priced publications may be purchased from the Superintendent of Documents, Government Printing Office, Washington, DC ANDERSON, ROBERT, An occurrence of asphaltite in northeastern Nevada: Bull.
Page 295 - An act making appropriations for sundry civil expenses for the fiscal year ending June thirtieth, nineteen hundred and twelve, and for other purposes. ******* United States Geological Survey.— For chemical and physical researches relating to the geology of the United States...
Page 122 - SCHRADER, FC, Mineral deposits of the Cerbat Range, Black Mountains, and Grand Wash Cliffs, Mohave County. Ariz.: Bull.
Page 166 - In the southern part of the State the Calvert formation is overlain by the St. Mary's formation (middle Miocene), and along the western edge the St. Mary's transgresses the Calvert and rests on the crystalline rocks of the Piedmont Plateau. DISTRIBUTION AND OCCURRENCE OF THE SANDSTONE. In the Ashland area the sandstone does not outcrop in a continuous bed. It was seen only in the form of irregular flat fragments lying loose upon the surface. The fragments are of the same reddish-brown to yellow color...
Page 176 - HARDER, EC, Manganese deposits of the United States; with sections on foreign deposits, chemistry, and uses: Bull.
Page 266 - The government publications, except those to which a price is affixed, can be obtained free by applying to the Director, United States Geological Survey, Washington, DC The priced publications may be purchased from the Superintendent of Documents, Government Printing Office, Washington, DC ADAMS, GI, and others.
Page 290 - ... color is probably due to the alteration of some of the hematite- :o limonite, and this is borne out by the chemical analyses below which show a higher percentage of combined water in the soft ore than in the hard and semi-hard ore samples. Chemical analyses and specific gravity tests of these samples were made in the laboratory of the United States Geological Survey, by George Steiger, with the results denoted below. The results illustrate the gradation from hard to soft ore, principally with...
Page 122 - Preliminary account of Goldfield, Bullfrog, and other mining districts in southern Nevada, by FL Ransome, with notes on the Manhattan district, by GH Garrey and WH Emmons.
Page 292 - Gale, HS, and Richards, RW, Preliminary report on the phosphate deposits in southeastern Idaho and adjacent parts of Wyoming and Utah: Bull.