 | | Report (volume) | | Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By U.S. GEOLOGICAL SURVEY and U.S. BUREAU...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By ROBERT L. EARHART, U.S. Geological Survey...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By M. DEAN KLEINKOPF and DOLORES M. WILSON...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By DAVID J. GRIMES and ROBERT L. EARHART...Lincoln and Sanders Counties, Montana, and Bonner County, Idaho By NICHOLAS T. ZILKA, U.S. Bureau of Mines |  | | Report (issue) | | Oregon and from out-of-state-for such information on mining properties has shown the present need for such...reasonable time information that is of value to the mining industry, that it is deemed best to issue this...alphabetical name and location list of all mines in the district, a general introductory statement covering the...geology of the state, an index map showing the mining divisions of the state as covered by the several...Statement Baker County 13 ____ 13 _ _______________ Baker Area Cable Cove District Connor Creek Area |  | | Report (issue) | | the Mescal Limestone in the Proterozoic Apache Group by intrusion of diabase sills about 1,100 Ma (Shride...corresponds chiefly to the outcrop area of the Apache Group and diabase sills. Although zones of asbestos alteration...and in thermal insulation. Feldspar The feldspar group of minerals are anhydrous aluminum silicates of...constituents of igneous rocks. The members of the group that find common use as industrial minerals are...that runs from Lake Mead in Mohave County southeastward to Cochise County. Five locations are listed in table |  | | Report (volume) | | A reconnaissance of the Cottonwood -American Fork mining region, tab, by B.S. Butler and G. F. Loughlin...________ Notes on the fine gold of nake River, Idaho, by J . . L Hill (publi hed Dec. 21, 1915) . . ...Preliminary report on t.he economic geology of Gilpin County, Colo., by E. S. Bastin and J. M. llill (publish...227 237 CELLA. EOU,S: itrate dcpo i in southern Idaho and eastern Oregon, by G. R. Mansfield (published..._____ .. __ . _.. ____. ___ a iterite in San Diego County, Cal., by W. T . chall er (published J an. 15, |  | | Report (issue) | | Kofa Mountains lies in the central part of Yuma County, Ariz. These mountains cover an area of approximately...Castle Dome Range are the nearest. The Kofa mining district, from which the mountains derive their name...Mayhew and sold shortly afterward to the Golden Star Mining Co. for $350,000. Development was soon started...and placer deposits. The deposits of the first group are regarded as of Tertiary age, and those of the...Arizona and North Star mines are in the Kofa mining district, while the prospects in the northern part of |  | | Report (issue) | | Metallurgist MARK EHLE, Mining Engineer J. B. TENNEY, Geologist G. R. FANSETT, Mining Engineer R. E. S. HEINEMAN..."The Geology and Mineral Deposits of Southern Yuma County" is the most pretentious bulletin of the kind that...in many parts of the county, it has not been easy to prospect southern Yuma County at all thoroughly, but...__________ . __ .____ _____ ______ __. General mining history_______________________ __________ ._______________...46 46 46 47 47 48 PART H.-MOUNTAIN RANGES AND MINING DISTRICTS .............. CHAPTER L-TRIGO MOUNTAINS |  | | Report (volume) | | Mountain prospect.............................. Fisher group.......................................... Lucky....... The Red King group.................................... The Rabbit Hole group.................................... The Blue Bull group................................... Arizona mine.....................parts of the Steens and Pueblo Mountains, Harney County, Oregon.................................. In pocket...Fisher group.................. 250 42. Geologic and topographic map of the Lucky Strike group and adjacent |  | | Report (issue) | | CHROME GROUP PAGE GROUP WARDS GILLMORE-HALL REGAL GROUP HUNTER GROUP REX GROUP ROSS-ALLISON GROUP NATIONAL...NATIONAL GROUP ANSON LAKE MUSKRAT PAYORE NO.2 TAPPY LAC DU BOIS MOLYBDENUM ORE FAULT ORE NO.9 ORE NO.ll PAY...LITH MINES ZEEMEL,A.O. MANITOBA CHROMIUM MAC ROY MINING & EXPL. Z1YONE,J. BANNING,W.J. BANNING,W.J. BANNING...TOP O' THE WORLD BIRD LAKE CHROME LITH NO.12 DYKE GROUP COLOSSUS COLOSSUS NO.3 WENTO 50 50 50 50 50 50...HUDSON BAY EXPL. I; DEV. PETRA CHROMITE TANTALUM MINING CORP. TUDALE EXPLORATION MASKWA NICKEL CHROME MINE |  | | Book | | 91 Cobalt 93 Iron 96 CHAPTER V Lead 103 Zinc 106 Cadmium 108 CHAPTER VI Chromium 110 Manganese...because dolomite is harder than minerals, as in some zinc carbonate of lime and ores. magnesia. calcite...production of gold is as a by-product from copper, zinc, lead, and nickel ores. A good deal of gold is produced...by-product in the smelting and refining of ores of lead, zinc, and copper. nearly black. It Copper. is β The..."cobalt bloom" of the prospector. Zinc. βZinc blende ore of zinc. It is or sphalerite, is the |
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