 | | Report (volume) |
| SURVEY GEORGE OTIS SMITH, DIRECTOR BuiiIiETIN 574 MINING DISTRICTS OF THE DILLON QUADRANGLE, MONTANA AND................................................. Mining districts...................................................................................... Mining development. ...................... .. - - ' -..................................... 18 Placer mining....... ~................................................................ 20 Present status of mining .....:........................................ |
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| BUIJLETIN 528 GEOLOGY AND ORE DEPOSITS 1 OF LEMHI COUNTY, IDAHO BY JOSEPH B. UMPLEBY WASHINGTON GOVERNMENT...and animal life....................----.-----.....Mining......................................................................... 74 Mineralogy of Lemhi County ores....................................... 74...... Future of mining in Lemhi County.......................................... Mining districts of Lemhi...Lemhi County.......................................... Scheme of treatment........................... |
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| 782 ORE DEPOSITS OF THE JEROME AND BRADSHAW MOUNTAINS QUADRANGLES, ARIZONA BY WALDEMAR LINDGREN WITH...History of mining _ ____..________________ Production ______________________________________ Mining districts...schist_____________________________ Bradshaw Mountains quadrangle_______________ Jerome quadrangle ___________________...Tertiary lake beds _ _ Ore deposits _ ____ United Verde mine _ ___ _ _ _ Location ____ _ ___________ _______...copper Smelting operations________________________ Mine water_____________________________ Geology____ |
 | | Report (issue) |
| MINERAL DEPOSITS OF THE ORD MOUNTAIN DISTRICT, SAN BERNARDINO COUNTY, CALIFORNIA By F. HAROLD WEBER...Climate, vegetation, and water supply History of mining 20 7 Summary 21 7 Hydrothermal 7 10 Previous...classification 28 Description of the mines Gold Banner mine Greenback prospect Martha prospect ___ 29 29 29... 31 Moly prospect Ord Mountain mine 31 Red Etta Hill 31 mine _ prospects Ord Mountain 41 41...41 iron deposit White Dollar mine Unnamed manganese-travertine 20 [3] 40 41 Contact metasomatic |
 | | Book (edition) |
| Colorado National Monument Mesa County Dinosaur National Monument Moffat County Great Sand Dunes National... Montezuma County NATIONAL PARKS IN COLORADO Mesa Verde National Park Montezuma County Rocky Mountain...Utah Border to Steamboat Springs, U. S. 40 Moffat County Dinosaur National Monument Hahns Peak Segment B... S. 160 Gem Village Wolf Creek Pass Wagon Wheel Gap' Commodore Silver Mine Del Norte Segment D — Gunnison...Gunnison to Salida, U. S. 50 Opportunity Mine Bucky Mine Segment E — Glenwood Springs to Aspen, Colo. 82 |
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| ....................................... 14 Mountains and peneplain ..................................Company.......................... 62 Three Man Mining Company.............................. 62 FidalgoBay...prospect.............................. 62 Fidalgo Mining Company..-...........--..'............... 63 Fidalgo..................................... 63 i Bonanza mine............................................ 63 Reynolds-Alaska...Development Company .................. 66 Latouche Copper Mining Company........................ 67 Knight Island |
 | | Book (edition) |
| the Pikes Peak Region Seven Keys to the Rocky Mountains Historical Atlas of Colorado American Gem Trails...Montrose County Colorado National Monument Mesa County Dinosaur National Monument Moffat County Florissant...Florissant Fossil Beds National Monument Teller County Great Sand Dunes National Monument Saguache and...National Monument Montezuma County Yucca House National Monument Montezuma County NATIONAL PARKS IN COLORADO...COLORADO Mesa Verde National Park Montezuma County Rocky Mountain National Park Grand and Larimer Countie~ |
 | | Report (issue) |
| Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is PUBliC P[O'J>ERTY aud 1• DOt ~re~~o~...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction...hornblende gneiss ____________ _ Quartzite at Coal Creek ________________ _ Igneous rocks _____________________________...Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ _ Pikes Peak granite ...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39 |
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| GEOLOGY AND OEE DEPOSITS OF THE MOGOLLON MINING DISTRICT, NEW MEXICO BY HENRY G. FERGUSON WASHINGTON...sequence 1 2 3 _ 4 5 5 _ . __ Whitewater Creek rhyolite Cooney quartz latite ___ & _ 6 7 -...___ _ . Pacific quartz latite ________ Mineral Creek andesite Fanney rhyolite_ vi _____ ___ _ 11...and prospects.-___ ______ _________________ Eureka mine _ _ ____ ________________ Veins of the Pacific ...Gold Dust and Last Chance veins_________ Deadwood mine __________________ __________ Last Chance mine_ |
 | | Report (issue) |
| Geology and Ore Deposits of the Boulder County Tungsten District Colorado GEOLOGICAL SURVEY PROFESSIONAL... Geology and Ore Deposits of the Boulder County Tungsten District Colorado By T. S. LOVERING and OGDEN TWETO...Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES GOVERNMENT PRINTING OFFICE...1953 UNITED STATES DEPARTMENT OF THE INTERIOR Douglas McKay, Secretary GEOLOGICAL SURVEY W. E. Wrather...__________________________ Principal rocks of the district.________________________ Pre-Cambrian rocks__ |
 | | Book (edition) |
| Rs v Engineering News -Record ~ Engineering and Mining Journal-Press Power Chemical and Metallurgical...rocks — Acid sulphate waters in igneous rocks — Mine waters of sulphate type —Sodium carbonate waters...veins Mineral association Origin Mine waters Rock alteration Mining and smelting operations The copper...Comstock lode — Argentite veins — Gold veins — Cripple Creek — Gold selenide veins — Occurrence selenides — Republic...—Silverton Ouray —La Plata, Durango, and Needle — Rico Mountains quadrangles —Lake City — Creede Summary — Gold-alunite |
 | | Journal (article/letter/editorial) |
| MOORE 445 COMPARATIVE STUDY OF THE ONGANJA COPPER MINE, NAMIBIA: A LINK BETWEEN NEOPROTEROZOIC MESOTHERMAL...Southern Zone. Introduction The Onganja copper mine is located within the Southern Zone of the Damara...world-renowned cuprite crystals (Cairncross and Moir, 1996). Despite an extensive mining and exploration...This paper combines unpublished data from previous mining/exploration activities with new mineralchemical...and Stanistreet, 1991). To the south of the mining district, Mokolian basement (Hohenwarte Metamorphic |
 | | Book (edition) |
| the earth’s surface. In the process of building mountains the earth has brought to the surface rocks that...chemical to how to clas- analyses to deter- — mine one of the fundamental properties of minerals the...cubic crystals of fluorite; another cave in Wayne County, Utah, contained a large number of enormous crystals...dodecahedron. ) THE CRYSTAL SYSTEMS 25 Figure 3-3 1 (cuprite) and Fig. 3-32 (a rare species, microlite) show...alkaline waters, or acid vapors. Thus the mineral cuprite (Cu 2 0) is rather easily changed chemically to |
 | | Report (issue) |
| GEOLOGY AND ORE DEPOSITS OF THE OCEUR D'ALENE DISTRICT, IDAHO BY RANSO~IE FREDERICK LESLIE AND FRANK.... ..... . . 65 Structural subdivisions of the district. . ................................•.. .. ......-Structure-Continued. Structural subdivisions of the district-Continued. Page. Southeastern area ... _. ___..._________ . _..... __ ._ .... _.... __ 78 History of mining development .. ______ .. ___ . __________ . _______... _________ ._ .. ____ .. __ .____ 84 Mines and mining ___ .. _... _______ . ________ . _. ____ . ___ |
 | | Book (edition) |
| Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...plagioclase series are also separately listed: andesine, oligoclase, labradorite, bytownite (series end-members...abbreviations: Rep. (republic), prov. (province), co. (county), munic. (municipio), pref. (prefecture), dept...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....always included in text, except in the cases of the USA, UK, and the provinces Ontario and Quebec in Canada |
 | | Book (edition) |
| production, and prices often so low as to make mining unprofitable; and the end of that period has not...to record production since 1930. Just now gold mining appears to be the only metal industry which is...—Interpretation sulpliide waters — Chloride water analyses Mine waters waters— Sulphate waters Oxidation of waters—“Carbonate...veins in basic lavas General features The Kennecott mine, Alaska— ( ’opper sulphide veins in intrusive basic...Peninsula, New Zealand El Oro, Mexico ^Black Mountains, — — — — —^Argentite-gold-quarts veins Tonopah |
 | | Book |
| from power stations fuelled by locally mined coal. Mining directly employs half a million people and another...million people formally employed in the country. The mining industry returns billions to the economy in operating... taxes, royalties, dividends and interest. The mining industry, and the minerals on which it relies,...(field of view 8 cm). Figure 1.3 An opencast iron ore mine (Postmasburg, South Africa). 7 microscopes, or...from Kayes region, Mali); (C) grossular (Jeffrey mine, Canada, 5.6 cm); and (D) spessartine (Marienfluss |
 | | Book |
| Exploration and Discovery of Minerals and Rocks Mining and Quarrying 364 365 Processing, Benefication...for a Song time, long before Christ. Egyptians mining turquoise in the Sinai area were well aware of...a particular face, it is necessary to deter- mine whether or not that face intersects all of the crystallographic...here to explain determined. In the formula of cuprite, two coppers (Cu) for each one oxygen determined...chemical tables of elements. For the mineral cuprite (Cu 2 0), the following weight percentages are |
 | | Thesis/Dissertation |
| structural pattern of the Leadhills;1anlockhead district, imposed by the Caledonian Orogeny, is characterised...these had not been previously recorded from the district, including one new mineral, akin to chromium bearing...I. The Geology of the Leadhills-i';anlockhead district The Stratigraphy ••• ••• a. The Volcanic Rocks...Leadhills-1·fanlockhead district Introduction .0. • •• List of l·finerals recorded from the district Lead minerals...deposits ••• Future econonic prospects of the district Appendices: I. Descriptions of the Leadhills-Wanlockhead |
 | Waizy, Hamidullah, Moles, Norman R., Smith, Martin P., Boyce, Adrian J. (2021) Formation of the giant Aynak copper deposit, Afghanistan: evidence from mineralogy, lithogeochemistry and sulphur isotopes. International Geology Review, 63 (17) 2104-2128 doi:10.1080/00206814.2020.1824129 | Journal (article/letter/editorial) |
| Aynak deposit, are located in the Kabul Copper District, an area of 800 square kilometres situated within...mineralizing processes which may be important in mine development and exploration for further resources...(a) Khayakhana quarry northwest of Kabul City (mining truck for scale), showing multiple episodes of... Plagioclase in the compositional range andesine– oligoclase–albite commonly occurs in quartz–feldspar...or completely replaced by bornite, chalcocite, cuprite, native copper and malachite (Figure 3(b,c)). Chalcocite |
 | | Book (edition) |
| waters-Summary- Interpretation of ·water analyses-Mine waters-Chloride waters- Carbonate waters-Sulphate...veins in basic lavas-General features-The l(ennecott mine, Alaska-Copper sulphide veins in intrusive basic...·veins-1\tlincral association- Origin-Mine \vatcrs-Rock alteration-Mining and srnelting operations-The copper...·Peninsula, New Zealand-El Oro, l.\1exico-Black Mountains, Arizona-Gold-quartz veins in rhyolite-Argentite-gold-quartz...lode-Argentite veins- Gold telluride veins-Cripple creek - Gold selenide veins-Occurrence of selenides-Republic |
 | | Book (volume) |
| 2 PREFACE For two decades, an earlier work of mine—Practical Gemmology—has proved a useful elementary...the Cultured Pearl Company, and those of diamond mining by the Anglo-American Corporation. ROBERT WEBSTER...disturbances in the earth’s crust during the birth of mountains, may alter the surrounding country rocks, whether...lithiumbearing pegmatites of the Pala district of San Diego County, California, from which much of the...gem species are described. MINING METHODS The methods used in the mining of gem materials are usually |
 | | Book |
| which are essential to a field geologist or to a mining engineer in an understanding of the fundamental...is about the same as andesine, is higher than orthoclase, albite and oligoclase, and less than labradorite...birefringence chart it is possible to deter- mine not only the order of birefringence of a mineral...anorthite have a dispersion formula R > V. Albite and oligoclase have a dispersion formula V > R. General Operation... bauxite (Beaux, in France), ilmenite (Ilmen mountains, in the Urals), DESCRIPTION OF ROCK-MAKING MINERALS |
 | | Book (edition) |
| File, 1601 Park Lane. Swarthmore, Pennsylvania, USA. Introduction This volume is the third edition...Green River Formation in (TL) Uintah Co .. Utah. USA. Named for P.H. Abelson. 20.7.3 AbernalhJile. K(U00As0...26 A. Z=4 [PDF 1 6-386]. (TL) Temple Mts. Utah. USA. Named for J . Abernathy. Abhurite. S n 30(0HhCl...Absitc. var. of brannerite. A .W.G. Whittle ( 1 954) Mining Rev. S. Austral. Dept. Mines no. 9 (for 1 952)...44. c 1 3 .50 A. A natural occurrence at a coal mine in the (TL) Lvov-Volynsk basin, USSR. Achates. syn |
 | | Book |
| J. Cabri of Natural Resources Canada (CANMET), Douglas S. Coombs of the Unin?rsity of Otago, Alan J. Criddle...Ab60 = intermediate between Albite and Anarthite [Andesine] Absorbit = Vermiculite Ab40 = intermediate...Acido Vanadico = Karelianite Acide Vonadique = Cuprite [Vanodine) Acicular Stone = Scolecite Aciculite...b} (of Chesnokov) calcium iron oxide from burning mine dump Acid Aluminium Phosphate = (of Marchand) inadequately...Albite, intermediate between Albite and Anorthite [Oligoclase] Acide Arsenieux = Arsenolite, Claudetite Acide |
