 | | Report (volume) | | of Precambrian rocks, Idaho Springs district, Colorado, by Robert H. Moench. (B) Geology and coal resources...of Precambrian Rocks, Idaho Springs District, Colorado By ROBERT H. MOENCH CONTRIBUTIONS TO ECONOMIC...OF PRECAMBRIAN ROCKS, IDAHO SPRINGS DISTRICT, COLORADO By RoBERT H. MoENCH ABSTRACT The Idaho Springs... PRECAMBRIAN ROCKS, IDAHO SPRINGS DISTRICT, COLORADO A3 -~5t-l I I II ___fJ __f __ _ Boulder...embraces about 10 square miles, lies athwart Clear Creek Canyon, and is characterized by moderately A4 |  | | Report (volume) | | Western Part of the Morrison Quadrangle Jefferson County, Colorado GEOLOGICAL SURVEY BULLETIN 1251-E...Western Part of the Morrison Quadrangle Jefferson County, Colorado By D. J. GABLE CONTRIBUTIONS TO GENERAL...rocks along the mountain front due west of Denver, Colorado UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...WESTERN PART OF THE MORRISON QUADRANGLE JEFFERSON COUNTY, COLORADO By D. J. GABLE ABSTRACT The Morrison...ACKNOWLEDGMENTS The part of the Morrison quadrangle, Jefferson County, Colo., in which Precambrian rocks are exposed |  | | Book (volume) | | SOUTHWESTERN QUADRANT Arizona, Arkansas, California, Colorado, Louisiana, Nevada, New Mexico, Oklahoma, Texas...Southwestern Quadrant Arizoni, Arkansas, California, Colorado, Louisicna, Nevada, New Mexico, Oklahoma, Texas...Location Numbers Arizona Arkansas California Colorado 258 Louis B30 ana HOW TO USE THIS BOOK...volumes, through very precise directions and accurate county maps, to get you to the best and most accessible...for the county in which it is located. This site number also appears under the given county in the text |  | | Book (edition) | | reference of its kind ever assembled. Thorough, clear, and, above all, easily read and understood, GEMSTO1'ES...from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...Mounce diamond crystal 5. Gibson's Ruby mine, Cowee Creek, North Carolina 6. Corundum Hill, North Carolina...Miners at Crystal Peak, Colorado 30. Pegmatite pocket, Crystal Peak, Colorado 31. Spodumene, Pala Chief...of tourmaline crystal forms 38. Map of San Diego County, California gem sources 3 9. Stewart Lithia· and |  | | Book (edition) | | abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada...Uintah County. Utah. and m (2.B. acanthite group). Monoclinic, C2/m, a,b,c Rio Blanco County. Colorado... 843-854, Georgetown, Clear Creek co., and at Rice, Dolores co., both Colorado, at the Questa mine, Taos...Plat., Malawi, G 10 17 River Formation in Uintah County, Utah. Deer et al., v. 2A,483, 1997. Aenigmatite |  | | Report (volume) | | of the Idaho Springs District Clear Creek and Gilpin Counties, Colorado GEOLOGICAL (=) I o 00 SURVEY...the Idaho Springs District Clear Creek and -i ;i ?i Gilpin Counties, Colorado By ROBERT H. MOENCH and AVERY... PLATE 1. Map of the Idaho Springs district, Colorado, showing location of mines and distribution of...OF THE IDAHO SPRINGS DISTRICT, CLEAR CREEK AND GILPIN COUNTIES, COLORADO By ROBERT H. MOENCH and AVERY...IDAHO SPRINGS DISTRICT, COLORADO 106° 105" DANO SPRINGS DISTRICT. CLEAR CREEK! COUNTY_1 I FIGURE 1 |  | Best, Myron G., Grant, S. Kerry, Mehnert, H.H., Keith, J.D., Naeser, C.W. (1987) Oligocene and Miocene volcanic rocks in the central Pioche-Marysvale igneous belt, western Utah and eastern Nevada. Professional Paper 1433ab. US Geological Survey doi:10.3133/pp1433ab | Report (issue) | | Formation .............................. 13 Greens Canyon and Mackleprang Tuff Members ....... 13 Lava...Formation and location of Indian Peak caldera Greens Canyon Tuff Member of Ryan Spring Formation ............of the Three Creeks Tuff Member of the Bullion Canyon Volcanics .... A2. Isotopic ages of dacite tuffs...with the Three Creeks Tuff Member of the Bullion Canyon Volcanics, whose source lies far to the east in... lithic-rich rhyolite ash-flow tuff the Greens Canyon and Mackleprang Tuff Members of the Ryan Spring |  | | Book | | states of Guanajuato and Chihuahua, Mexico. In the USA silver occurs at Keweenaw, Michigan, in association...copper ores, and at Butte, Montana, as well as Colorado, Arizona and Idaho. In Canada it occurs at Cobalt...Corocoro, Bolivia, and at Cananea, Mexico. In the USA copper is found in abundance in the Keweenaw area...and from Kalgoorlie in Western Australia. In the USA gold is often obtained by individual prospectors...ranges of the western states, including California, Colorado, Nevada and Alaska. In Canada deposits occur at |  | | Book | | are reported by county of occurrence. Map 1-2 shows the county boundaries and county names. When possible...II TRANSVERSE RANGES X PENINSULAR RANGES XI ~ COLORADO DESERT GOLD-BEARING AREA Map 1-1. Map of California...,o Map 1-2. Outline map of California showing county boundaries. __ _) 4 MINERALS OF CALIFORNIA...of the Potholes District of Imperial County, near the Colorado River about 10 miles north of Yuma, Arizona...Ysidro, San Diego County, in 1828 ; from Los Angeles County, San Francisquito Canyon, in 183 5; and in | | | Book | | species are reported by 1-2 shows the county boundaries and county names. When possible, locations of mines...within a township is illustrated by Figure 1-1. county of occurrence. Map *M. Fleischer’s 1980 Glossary...DESERT IX TRANSVERSE RANGES X PENINSULAR RANGES XI COLORADO DESERT GOLD-BEARING AREA I U Map 1-1. Map...Map 1-2. Outline map of California showing county boundaries. 4 MINERALS OF CALIFORNIA R5W i...District of Imperial Yuma, Diego County, County, near the Colorado River about 10 miles north of Subsequent |  | | Book | | together in any previous publication. A simple, clear exposition of the nature, occurrence and properties...form. The Greeks named them krustallos, mean¬ ing ‘clear ice’. The word became crystal, which was applied...all crystals of a given substance. We should be clear what is meant when we speak of the angle between...y--.Hfc- Geology for the Collector Left: Grand Canyon, Arizona. A mile-deep cross-section of ancient...sedimentary rocks has been exposed by the erosion of the Colorado River. The rocks were originally deposited as |  | | Book (edition) | | COLOR-LUSTER: Yellow; weakly vitreous. Crystals clear and transparent. Streak pale yellow. Flu oresces...the Fuernrol No. 2 mine, Temple Mountain, Emery County, Utah; also sparsely disseminated in uraniferous...in the Cave Hills and Slim Buttes areas, Harding County, South Dakota. BEST REF. IN ENGLISH: Thompson,...sometimes brilliant. MODE OF OCCURRENCE: Occurs in Colorado at the Pelican Dives rnine , Silver Plun1e district...the Little Emma mine, Clear Creek County; at the Enterprise n1ine, Dolores County; and at the Double Header |  | | Book (edition) | | Encyclopedia of minerals ~~cbe County Public Library Saguache, Colorado OEMCO For Refere nee Not to...Sagtiache Co1tntr Publlc I...ibran' Saguache, Colorado ~ VANNOSTRAND REINHOLD ~ - - - - N e w York...Cal and Kerith Graeber Cureton Mineral Company Colorado School of Mines cw Charles and Marcelle Weber...COLOR-LUSTER: Yellow; weakly vitreous. Crystals clear and transparent. Streak pale yellow. Fluoresces...the Fuemrol No. 2 mine, Temple Mountain, Emery County, Utah; also sparsely disseminated in uraniferous | | | Book (edition) | | Encyclopedia of minerals Sagiiache County Pu blic Library Saguache , Colorado DEMCO For Reference Not to...Wendell E. Wilson Library Saguache County Public Saguache, Colorado VAN NOSTRAND REINHOLD New York ...Cal and Kerith Graeber Cureton Mineral Company Colorado School of Mines Charles and Marcelle Weber Dan...oil shale of the Green River Formation, Uintah County, Utah, associated with authigenic orthoclase, pyrite;...COLOR-LUSTER: Yellow; weakly vitreous. Crystals clear and transparent. Streak pale yellow. Fluoresces |  | | Report (issue) | | COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 12 COMMON MINERALS AND ROCKS...org/10.58783/cgs.b12.hntl2601 EAMES DENVIIIR, COLORADO BROS., STATE PRINTERS 1917 GEOLOGICAL BOARD...Governor of Colorado LIVINGSTON F ARRAND ______________________ President University of Colorado HowARD C...TRANSMITTAL State Geological Survey, University of Colorado, Feb.2.1917. Governor Juli11s C. Giinter, Chairman...honor to transmit herewith Bulletin 12 of the Colorado Geological Survey. Very respectfully, R. D. GEORGE |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | B. Hoover: U.S.G.S., Federal Center, Lakewood, Colorado. John M. Hughes: Dept. of Geology, Miami University...Louise Reif: U. S. G. S., Federal Center, Lakewood, Colorado. Charles B. Sclar: Dept. of Earth Sciences, Lehigh...usage) Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho...Communications Chemical Society of Japan Bulletin Colorado School of Mines Quarterly Crystal Structure Reports...Ledge mine, Nevada Co., Jamestown, Tuolumne Co., Colorado quartz mine, Mariposa Co., Bonanza mine, Trinity |
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