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| for advance publication] (A) Some mining districts of eastern Oregon, by James Gilluly, J. C. Reed, and...deposits of the Takilma-Waldo district, Oreg., including the Blue Creek district, by Philip J. Shenon________...1. Index map showing location of mining districts in eastern Oregon. 8 2. Topographic and geologic map...map of the Mormon Basin mining district, Baker and Malheur Counties, Oreg _ 32 3. Geologic sketch of underground...East Eagle district, Oreg _ 72 4. Topographic and geologic map of Virtue district, Baker County, Oreg__ |
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| ................................ 8 1.4.1.2 Acid Mine Drainage .........................................Characteristics of the Ore and Relationship to Acid Mine Drainage ....................................................................... 32 2.7.1 Quartzburg District ................................................................... 32 2.7.2 Grimes Pass District .......................................................................... 32 2.7.3 Gambrinus District ............................................. |
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| 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 -- |
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| an overall guide been written on gold and gold mining of publications have no single report or to...longer district Hulin, respectively. the principal features of each gold-bearing district are described...publications were written on various phases of gold mining. The reports of John Trosk, the first State Geologist...Commissioner of Mineral prepared reports of mine production and gold-mining Bureau, and later now the California...The California Mining in 1880, gold-mining operations; the and Geology and the County a number of |
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| Q E S5 W63 1994 EART ROADSIDE GEOLOGY AND MINING HISTORY OF THE MOTHER LODE 1994 Gregg Wilkerson...California … • * * ** ROADSIDE GEOLOGY AND MINING HISTORY º OF THE MOTHER LODE April 9, 1994 Gregg...Field Trip Program Mother Lode '94 Bakersfield District Office Bureau of Land Managmement 3801 Pegasus.... . . 14 TV QFºo 5-M/43 ROADSIDE GEOLOGY AND MINING HISTORY OF THE MOTHER |*4 EART LODE Gregg Wilkerson...adapted from the 1991 guide are noted by (91). All mine production values are from the 1941 or 1991 guides |
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| ........................ 5 5 Distribution of mining districts...................................................................................... Oregon........................................'................................. PART II. Catalogue of mining districts, by J. M. Hill..................................................... Classification of mining districts........................................j.............................................. Oregon............................................... |
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| Nye County, Nevada Mineral Resources of the Arc Dome Wilderness Recommendation Area, Nye County, Nevada...the Arc Dome Wilderness Recommendation Area, Nye County, Nevada I by Gerald F. Brem ... [et al.]. p. em...Recommendation Area (4-667), Toiyabe National Forest, Nye County, Nevada. The area was classified as a proposed...the Arc Dome Wilderness Recommendation Area, Nye County, Nevada FIGURES 1. Index map showing location...Recommendation Area and Arc Dome Wilderness, Nye County, Nevada 2 2. Map showing mineral resource potential |
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| Pennsylvanian), and Clipper Ridge Member of the Bingham Mine Formation (Upper Pennsylvanian). The nappe is inferred...easternmost part of the Ophir mining district and the southern part of the Bingham district. A disseminated gold...prospect, similar to the deposits in the Mercur mining district has been explored in West Canyon, immediately...the quadrangle adjoins the Ophir mining district and the northeast comer covers the southern (vein and...deposit) area of the Bingham mining district. The abandoned Old Mayflower mine is at the head of West Canyon |
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| was discovered in the region in Powell County in 1852. Mining began in the 1860's, and since then the...References cited F. Mineral resource geology of mining districts/areas Lincoln Region by R.G. Tysdal,...G. Tysdal, E.A. du Bray, and J.W. Whipple York district Geologic setting Mineral deposits Sediment-hosted...Exhalative, Au iii Vein, Au-bearing Confederate Gulch district and Southern Big Belt area Geologic setting Mineral...(Ogden Mountain) district McClellan Gulch district Stemple-Gould district Finn district Marysville (Silver |
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| Control the Location of Base- and Precious-Metal Mining Districts in the Oquirrh Mountains, Utah by Edwin...Structural and Stratigraphic Characteristics of Mining Districts in the Oquirrh Mountains ..............(West Mountain) mining district ................ .14 Mercur (Camp Floyd) Mining District ................. 20 Ophir Mining District.................................. .27 Stockton (Rush Valley) Mining District...District ................... 32 Barneys Canyon-Melco Mining Area ..................... 35 Conclusions .... |
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| __ _____.__-___------------------------- " Granodiorite porphyry._________________________________ Lamprophyre...mine___-____-__-_----_--_-------_---__---___-230 Mascot mine--__----_-_-_----------------------.-_----_--- ....prospect____________---__--__--------_--_-,.-_-___ 233 Eureka mine-______________-----__--_^____________________ 233...mine____-______-_____-_-_____-___-._-______-___ 234 Cleveland mine..----__--___-_---__-.----_-____-_-_._-_-___235 Texida...___________________________________________ 236 Elkhorn mine._________..__..__ ..__..__......_______ 237 Forest |
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| ______________________________ Wilson Peak and Ophir stocks___________________________________ ~icro..._______________ _________ ___ __ Iron Springs (Ophir or Ames) district________________________ SanBe...claims_______________________________________ Mount Wilson mining district_______________________________ Morning...the Iron Springs district. 6. Map showing patented claims in the Mount Wilson district. Page. FIGURE ...across Bilk Basin____________ Photomicrographs of granodiorite porphyry________________ Diagram showing modal |
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| Selected Mining Districts of Utah by Carl L. Ege Headframe of Centennial Eureka mine, Tintic mining district... . . . . . . . . . . . . . . .1 What is a mining district? . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . .1 How many mining districts are there in Utah and are they still...mineral resources are mined in Utah’s most productive mining districts . . . . . . . . . . . . . . . . . . ...most common types of ore deposits found in Utah’s mining districts? . . . . . . . . . . . . . . . . . . |
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| CROSS SECTIONS, AND EXPLANATION PAMPHLET FOR THE OPHIR AND MERCUR 7 1/2-MINUTE QUADRANGLES, UTAH By Edwin...the upper plate of the Midas thrust fault in the Ophir and Mercur quadrangles, Utah....... Figure 2. Generalized...CROSS SECTIONS, AND EXPLANATION PAMPHLET FOR THE OPHIR AND MERCUR 7 1/2-MINUTE QUADRANGLES, UTAH By Edwin...Edwin W. looker INTRODUCTION The adjoining Ophir and Mercur quadrangles comprise the southern end of the...in north-central Utah, and include the Ophir and Mercur mining districts and the neighboring Sunshine |
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| occurrence--___ Petrographic details_______________ Granodiorite (Alta stock)________________ General character...69 69 69 69 69 70 70 70 70 70 70 71 History of mining, by V. C. Heikes.__________________ The first prospectors...Cotton wood area. _________ Regulations governing mining locations____________ Early shipments and experiments...Electric power________________________________ Mining-_______________________________________ Milling...____ Big Cottonwood district.________________________ Little Cottonwood district.______________________ |
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| ....................................... 102 District of Columbia .................................................................................. Oregon. ................................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...abundant it may have been completely exhausted by mining or quarrying. Deposits of minerals that are widely...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |
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| ------------------------ 1 History of placer mining in Nevada_____________________________________... Holy Cross district..-----------------------------------------------2. Jessup district.. ____________...------------------------_-------_ 3. Sand Springs district----------------------------------------------...Eldorado Canyon district..-----------------------------------------5. Gold Butte district--------------...Las Vegas district..·-----------------------------------------------7. Searchlight district.. ______ ------------ |
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| California's past gold production. Although gold mining decreased greatly in the years during and following...extractive techniques have rekindled interest in mining this metal in the State. In addition to production...been taken from the Grass Valley-Nevada City lode district and from Tertiary river channels and Quaternary...systems of the Grass Valley-Nevada City district, Nevada County, are about 30 miles north of the Mother...Mother Lode. At Grass Valley, veins cutting a granodiorite body and adjacent metamorphic rock trend northerly |
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| ___________ ____ __ ________ ____ Silver Islet district ___________________ ~_____________________ Cache..._ __ __ _______ __ _______ __ __ Dry Canyon and Ophir districts_____________________________ Lion Hill..._______________________________ American Fork district (Alta area)___________________________ Alpine...______ Redmond district __________________________________ _:________ Millard County _______________...Map showing oxidized ziuc deposits of the Tintic district, Juab and Utah Counties. 3. Map showing oxidized |
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| OREGON GEOLOGY published by t he Oregon Department of Geolog y and Mineral Industries ." VOLUME 53...Carbonized Wood as Related to Ignimbrite Deposition OREGON GEOLOGY (ISSN 0164-3304) OIL AND GAS NEWS Drilling... \1a;.. Jul~. September. and !\"o\cmber b) the Oregon Depanmcill Industric5 (Volumes \ through ..\0 \\crc...Supervisor. Second class postage paid at Portland, Oregon. Subscription rates: I year, $8; 3 years, $19....Single issues, $2. Available back issues of Ore Bin/Oregon Geology through v. 50, no. 4, $1. Address subscription |
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| org/details/reportofstatemin15cali CALIFORNIA STATE MINING BUREAU FERRY BUILDING, SAN FRANCISCO ^LETCHER...Statement xxiii Participation of the California State Mining Bureau in the Panama-Pacific International Exposition...Production General Features I. Alpine County. 5 6 6 , Mining Districts The Mogul and Monitor Districts...Hercules Company 14 23 Silver Mountain District Silver King District Mineral Water Grover's Hot Springs...27 27 27 , , Bibliography Chapter II, Inyo County. Introduction and Acknowledgments Location and |
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| CASSITERITE IN SAN DIEGO COUNTY, CALIFORNIA. By WALDEMAR T. SCHALLER. A small handful of cassiterite...crystals was found in the northern part of San Diego County, Cal. (fig. 22), in the spring of 1915, and the...showing position of cassiterite locality in San Diego County, Cal. The rectangle indicates the gem tourmaline...tin ore in place previously known in San Diego County. These are as follows: F. J. H. Merrill 1 has stated...of Laguna Mountain, in the southern part of the county. Additional reported occurrences are in Pine Valley; |
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| INSTITUTE OF MINING & TECHNOLOGY CAMPUS STATION SOCORRO, NEW MEXICO NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY...Copperside mine, Goodsprings, Nevada ............................................ New Mayberry mine, Utah...Treasure mine, Ophir Hill area, Utah ................................... Lark vein, Bingham district, Utah...32 A case study of porosity at the Shingle Canyon mine, New Mexico 33 Sulfide estimates by ordinary porosity...Pewabic mine, Hanover, New Mexico ................................................ Grant County mine, New |
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| 1.04 2.35 -- 4.04 --63 Climax, Colo. O.K. Mine, Utah Qtz. monz., fresh 2 Qtz. monz. alt. 2a 21...vein filling, Veteran Mine. * Numbers in parenthesesfollowing name of district refer to "References"... 744 HUGH McKINSTRY 153. Porphyry ore, Copper Flat Mine. 154. SilicAfledvariety of porphyry ore, Copper...(4) 1. Fresh rock. British tunnel, Last Chance Mine. 2. Dark porphyry (altered rock), Boston Consolidated... Utah Copper Mine, north end oi pit.' 4. Wall of lode, British tunnel, Last Chance Mine. 4. Porcupine |
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| ..... . . ............ 10 Pike National Forest County of El Paso (Black Forest) Land Exchange Offer ...................... 48 Fig. 14. Map 12-Offered mining claims-Quartz Creek & Cumberland Pass areas (provided...................... 49 Fig. 15. Map 13-Offered mining claims-Taylor Pass area (provided by USFS) ......................... 50 Fig. 16. Map 14-Offered mining claims-Whitepine area (provided by USFS) ........................... 51 Fig. 17. Map 15-Offered mining claims-Granite Mountain area (provided by USFS) |
