 | | Report (issue) | | Peninsula, Mich. 10. Porphyry molybdenum ore, Colorado 11 . Zinc ore, Edwards , N . Y. 12. Manganese...Survey in accordance with the provisions of the Mining and Minerals Policy Act of 1970 (Public Law 91-631...discovered or not presently profitable to mine. The mining of mineral deposits, once discovered, depends on...Cuprovanadinite, (Pb,Cu)s(V0.)3Cl.. .......... Variety of vanadinite. Curienite, Pb(U02)2(V04)2 •SH20. Dechenite,...As)0 4hCl ....................... Variety of vanadinite. Eosite, vanadate and molybdate of Pb. Eusynchite |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF THE BRECKENRIDGE MINING DISTRICT, COLORADO BY T. S. LOVERING UNITED STATES...-----Location and topography _______________ History of mining..__-._..-_-..----..__ General geology___...__-_--_--_..._ Criteria of enrichment in the Breckenriclge district......__._.._-._-..._.__.___-_._ Enrichment of...ILLUSTRATIONS Page PLATE 1. Map of part of the Breckenridge district, Colorado, showing some of the principal mine...In pocket 2. Geologic map of part of the Breckenridge district._____-__--__--_---_____________--_--------_____-__ |  | | Journal (issue) | | - - - - - - - - - - - Mineral Collections 1n Colorado A Supplement to The Mineralogical Record November-December..."Smithsonian packet," Smoky Hawk claim, Florissant, Colorado. Collected in 2008; Dorris Family collection;...certificates for mines in the Cripple Creek District, Colorado, in 1898 and 1901. Sponsorship: This special...Collecting in Colorado The Collections: Mel & Pam Bersch Ryan Bowling Ralph Clark Colorado School of Mines...Kile Brian Kosnar Bryan & Kathryn Lees Ian Merkel Mining Hall of Farne, Steve Whittington curator Nick North |  | | Journal (issue) | | A llgood & J. Pradenas Colorado Fam ous m ineral localities: Breckenridge, C olorado . . . 51 by E..." collected in 1865 at the Grit mine, El Dorado County, California, by Jules Fricot and donated to the...localities not mentioned in G old-I. . . Australia, Colorado and Appalachia, for example. It seems that we...gold. Genne and Robert Allgood (mining geologists for the Sonora Mining Company, right in the Mother Lode...occurrences in Tuolumne County, Peter Bancroft provides a report on a new specimen mining opera tion under |  | | Report (volume) | | magnetite-ilmenite deposits near Lake Sanford, Esse"!{ County, New York: U.S. Geol. Survey Bull. 940-D, p. 99-123...mineralogic occurrences of base-metal vanadates, and the Colorado Plateau region, where vanadium-uranium deposits...countries, and major geographic units, such as the Colorado Plateau region. "The Statesman's Yearbook," 19651966...Cu)a(VO,)sCL ________ do ________ _ Variety of vanadinite. Dechenite, PbZn(V, As) 0 4 0H _______________...04hCL __________ Vanadate ______ _ Variety of vanadinite. Eosae _____________________________________________ |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | | Report (issue) | | _________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____... Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten depositNorth workings...Lincoln County__-__-----_-----_-----___ Tern Piute district....... __ ___ ... Mineral County____-_______________...naine________________ Mine near Green Talc mine. _____ Nye County ____ _._-___-________-___ Gabbs area __ _____________________..._____ Brucite and magnesite deposits. __ Pershing County __ Rocks in the West Humboldt Range ..~ Limerick |  | | Report (issue) | | description of the geology, mining history, and production of the major gold-mining districts in 21 States...relations ---------------------------History of gold mining and trends in production_ J\labama -----------...--------------Cleburne County ----------~----------------- Tallapoosa County --------------------------Alaska...------------------Cochise County -----------------------------Gila County --------------------------------Greenlee...ee County ----------------------------R[aricopa County ----------------------------R[ohave County -- |  | | Journal (volume) | | Olaf P. C. A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Chief Geologist Mining Engineer District Mining Engineer Sampson, Assistant District Engineer Chas...Chas. V. Averill, District Mining Engineer Frank Sanborn, Mineral Technologist Henry H. Symons, Statistician....... .... - - ... Herbert A. Franke, Junior Mining Engineer (Librarian) - Los Angeles Los Angeles...San Francisco TABLE OF CONTENTS Page DISTRICT REPORTS OP MINING ENGINEERS Redding Field Division Sacramento |
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