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| AS A GUIDE FOR EXPLORATION IN THE MONTEZUMA DISTRICT, CENTRAL COLORADO By Theodore Botinelly Open-File... Abstract The Montezuma district of central Colorado is a small base metal-silver mining district containing...the more productive mines. Introduction The Montezuma district is an area of base metal-silver vein deposits...other Tertiary stocks in the Colorado mineral belt and elsewhere. The district is roughly triangular in shape...Relief is about 1525 m; maximum elevation is the summit of Grays Peak (4350 m). The area has heavy snows |
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| HISTORY OF FOUR Native Silver Localities 7 in Colorado Downloaded by [University of California, San Diego]...72 Golden, Colorado 80403 All photos by author unless otherwise noted SINCE 1859 COLORADO HAS PRODUCED...rather than the native metal. Native silver in Colorado has been deposited both as a primary mineral,...to Date mine, Bald Mountain, Caribou area, Grand Island district, Boulder County. Specimen owner anonymous...(Front Range, central, and San Juan Mountains) of Colorado mineral belt. Some representations of mineral |
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| Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |
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| Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction..._____________________ _ Copper deposits in Jefferson County __ _ F. M.D. property _____________ _ Malachite...Cherry Creek and Douglas County placers _________________________ _ Mining districts in the mineral belt |
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| GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY..................._.......... . Distribution in Colorado ................................................Boulder County.............. . . . . . . . . . . . ......... . ....... . 103 Ores in Gilpin County .......Creek County ............................ . 103 Ores from the Argentine to the Tenmile district .. : .................. . 104 Ores of the Tenmile 'district ................................................ |
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| Smith. Director Professional Paper 138 MINING IN COLORADO A HISTORY OF DISCOVERY, DEVELOPMENT AND PRODUCTJON...location, area, and organization of the mining counties of Colorado _________________________ _ Adams County_-..._____________________ _ Alamosa County __________________________ _ Arapahoe County _________________________...Archuleta County _________________________ _ Baca CountY-----------------------------Boulder CountY------...CountY----------------------~----Chaffee County _____________________·______ _ Clear Creek County _______________________ |
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| "^'^^S'''^^^''^ 107 V, '^'^M^i^ JULY TO DECEMBER 1913 Mining and 429 MARKET STREET Scientific Press SAN FRANCISCO...company report Abosso mine. West Africa Acacia Mining Co., Colorado 270, Editorial. Accident prevention ... . . Queen Co.'s mine, Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper California...apreciatlon. On fissure veins i Ahmeek Copper Mining . . . Co., . .F. . . 620 386 366 1 978...smelting Co., Colorado Mine, Victor, Colorado, electric mine-signal system.. 49 Olancho county, Honduras |
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| Inc. 3300 Penrose Place, P.O. Box 9140, Boulder, Colorado 80301 94-18088 CIP Printed in U.S.A. Cover Photo:...Photo: Mt. Saint Elias and Tyndall Glacier looking north from over the Chaix Hills along the Gulf of...11 mm/yr. Mt. Saint Elias, the second highest mountain in Alaska, was the first landfall made by Vitus...Vertical relief from the summit of Mt. Saint Elias to the tidal front of Tyndal Glacier at the head of Icy... IT C., eds.. The Geology of Alaska: Boulder, Colorado, Geological Society of .America. The Geology of |
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| EEsod) DEOdi antecedent stream; event; inverted river; organic; photomicrograph; plaster conglomerate;...use. Geologists in South Africa are employed by mining houses or the Council for Geoscience! or as academic...geophysical research and mapping geophysicists assist mining companies in their search for target areas and...economic minerals not only stimulates South African mining, but also establishes a firm basis for the growth...bv . Cape Supergroup: Kaap Supergroep e Berg River Formation: Bergrivier Formasie . Bushveld Complex: |
