 | | Report (volume) | | National Forest, South Dakota and Wyoming U.S. GEOLOGICAL SURVEY BULLETIN 1580 SOUTH DAKOTA WYOMING I -«*&...Geology of the Black Hills National Forest, South Dakota and Wyoming We st from. Washington SHOWING...Geology of the Black Hills National Forest, South Dakota and Wyoming By ED DEWITT, J. A. REDDEN, ANNA...Mineral resources locatable commodities 50 History of mining and exploration 50 Metals 51 Industrial minerals...114 Miscellaneous commodities 115 Utilization of mine tailings 115 Aluminum 115 Bentonite 115 Mineral |  | | Journal (article/letter/editorial) | | [University of Connecticut] at 20:42 14 January 2015 South Dakota is perhaps best known for its pegmatites, which...Hills are responsible for the accessibility of South Dakota’s itbundant and diverse mineral locations...secondary phosphate minerals. Although some pegmatite mining for feldspar still continues (Jacobson 1994). the...except for the Homestake mine, which has operated for more than 120 years, most mining in the area peaked...and fewer chances to obtain any. However, some mining, mineral exploration, and mineral collecting continues |  | | Report (issue) | | STATE OF SOUTH DAKOTA Nils Boe, Governor MINERALOGY OF THE BLACK HILLS by WILLARD LINCOLN ROBERTS...Associate in Mineralogy Museum of Geology, South Dakota School of Mines and Technology and GEORGE RAPP...Department of Geology and Geological Engineering, South Dakota School of Mines and Technology With the Editorial...Mineralogy South Dakota School of Mines and Technology BULLETIN NUMBER 18 of the South Dakota School of...of Mines and Technology Rapid City, South Dakota PUBLICATIONS STAFF F. L. Partlo J. T. Thomas President |  | | Report (issue) | | Hpmestake Gold Mine, An Early Proterozoic lron-F<;,>rmation-Hosted Gold Deposit, Lawrepce County, South Dakota...SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105, 125 South State St. • SAN FRANCISCO, California-Customhouse...The Homestake Gold Mine : an early Proterozoic iron-formation-hosted gold deposit, Lawrence County, South...South Dakota I by Stanton W. Caddey ... [et al.]. p. em. (Geology and resources of gold in the United...I 19.3:1857-J 1. Gold ores-South Dakota-Lawrence County. 2. Homestake Mine (S.D.) 3. Geology, Stratigraphic-Proterozoic |  | | Journal (article/letter/editorial) | | Province, USA Robert S. Houston Geology Department, Universityof Wyoming, Laramie, WY 82070, USA (Received...near plate margins of the Archean Wyoming Province, USA. In: G. Gadl and K. Schulz (Editors), Precambrian...Phanerozoic cover just east of the Black Hills of South Dakota. The Black Hills is a segment of the Early Proterozoic...contains the Homestake iron formation which is host to the Early Proterozoic Homestake type gold deposits...either an epigenetic or syngenetic origin for the Homestake-type gold deposits. If the gold deposits are syngenetic |  | | Report (volume) | | Precambrian Rocks in the Galena-Roubaix District, Black Hills, South Dakota \ ( By R. W. BAYLEY » CONTRIBUTIONS...map of the Galena-Roubaix district, Lawrence County, Black Hills, South Dakota.________________ In pocket...Geological Survey diamond-drill hole 1, Galena-Roubaix district.____________ ra Ell CONTRIBUTIONS TO ECONOMIC...GALENA-ROUB AIX DISTRICT, BLACK HILLS, SOUTH DAKOTA ByK.W.BAYLEY ABSTRACT The Galena-Roubaix district is underlain...characteristic of the district. The oldest exposed rocks, previously mapped as amphibolite and Homestake Formation |  | | Report (issue) | | Denver, Colorado 9 ^University of South Dakota Vermillion, South Dakota INTRODUCTION This bibliography...references on geology of the Black Hills in South Dakota and Wyoming. For purposes of this report, the... the area does not include the Bad Lands of South Dakota nor the bulk of the Powder River Basin in Wyoming...included in the bibliography. References for South Dakota are more complete than those for Wyoming. Both...geology of the Black Hills National Forest, South Dakota and Wyoming, with a section on Salable commodities |  | | Journal (issue) | | information on questions of this kind. Editor Washington County HELVEtIA DEPOSIt ~, Abe Zoller Location: Nwt...1'53 SCUPOOSIi: DEPOSl'1'S Location: Columbia. County Numerous limonite deposits in area west of Soappoose...Parks, Henry •• - Limonite iron ores of Columbia County, Oregon: Oregon Bur. MlnQs Minewal Resources of... - Iron ore deposit neal!' Soappoose, Columbia County, Ol"egon: U.S. Geol. SUl"vey Strategic Minerals...1945. U.S. Bureau of Mines - Soappoose mine, Columbia County, Oregon: Minerals Rept. 186, 1944. War |  | | Journal (article/letter/editorial) | | nicht typisch ftir die in dem westlichen Teil der USA iibliche Gold-Quarz-Pyrit Assoziation. Introduction...single deposit in each locality. Only the Homestake, South Dakota, material is lode gold. The localities...Alder Gulch, Virginia City District, Montana Locality Copper Basin, Yavapai County, Arizona Pennsylvania...Pennsylvania Mountain, Park County, Colorado Type of occurrence Placer, residual Placer, residual Ninemile Creek...Creek, Missoula County, Montana Homestake ore body, Lawrence County, So. Dakota Type of occurrence Placer |  | Steadman, Jeffrey A., Large, Ross R. (2016) Synsedimentary, Diagenetic, and Metamorphic Pyrite, Pyrrhotite, and Marcasite at the Homestake BIF-Hosted Gold Deposit, South Dakota, USA: Insights on Au-As Ore Genesis from Textural and LA-ICP-MS Trace Element Studies. Economic Geology, 111 (7) 1731-1752 doi:10.2113/econgeo.111.7.1731 | Journal (article/letter/editorial) | | Pyrrhotite, and Marcasite at the Homestake BIF-Hosted Gold Deposit, South Dakota, USA: Insights on Au-As Ore Genesis...Abstract The Paleoproterozoic Homestake deposit, northern Black Hills, South Dakota, is the largest banded ironformation...synsedimentary to early diagenetic sulfides at Homestake and surrounding area indicates that the Au in...that the volume of upper Poorman Formation in the mine area (approx. 12 km3) could potentially yield ~4...suggest that a significant portion of the gold at Homestake may have been sourced from the relatively thick |  | | Report (issue) | | SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 South State St. SAN FRANCISCO, California-Customhouse...Terranes Part I Geographic Distribution of Gold Mining Regions and Types of Deposits in the United States...Exploration Guides for Gold Deposits, Black Hills, South Dakota By JACK A. REDDEN and GREGORY McN. FRENCH U...bibliographies. Contents: Geographic distribution of gold mining regions and types of deposits in the United States...Black Hills, South Dakota / by Jack A. Redden and Gregory McN. French. 1. Gold mines and mining United States |  | | Report (issue) | | SURVEY Bald Mountain gold mining region, northern Black Hills, South Dakota By James J. Norton Open-File...geologic map of a part of the northern Black Hills, South Dakota......................... 2 TABLES Table 1...production of gold and silver in the Bald Mountain mining region................................. 4 Introduction...the Black Hills, South Dakota, in gold mining does not rest solely on the Homestake mine. Other deposits...these are geologically quite different from the Homestake deposit and are of early Tertiary rather than |  | | Journal (article/letter/editorial) | | SEDIMENTARY ROC METAMORPHIG ZONES IN THOSE ROCKS IN THE LEAD D trusive bodies (including sills in the Ca Fro:om...THE NORTHERN BLACK HILLS AND THE HOMESTAKE MINE, LEAD, SOUTH DAKOTA BY JAMES A. NOBLE AND JAMES O. HARDER...Sedimentary rocks Metamorphic zoning Poorman formation Homestake formation Ellison formation Northwestern formation...the Lead district 941 2. Photomicrographs of typical sections of metamorphic rocks from the Lead district...of the Lead district 975 941 942 NOBLE AND HARDER—STRATIGRAPHY AND METAMORPHISM, SOUTH DAKOTA ABSTRACT |  | | Report (issue) | | SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 South State St. SAN FRANCISCO, California-Customhouse...Part I Bald Mountain Gold Mining Region, Northern Black Hills, South Dakota By JAMES J. NORTON Gold Deposits...Park City Mining District, Utah By CALVIN S. B ROM FIELD Gold in the Eureka Mining District, Nevada By...and THOMAS B. NOLAN Gold in the Central City Mining District, Colorado By ALAN R. WALLACE U.S. GEOLOGICAL...pt. 1. Bald Mountain gold mining region, northern Black Hills, South Dakota / by James J. Norton. Gold |  | | Journal (article/letter/editorial) | | with its representation of mining tools clearly proclaim Montana’s mining origins. Montana’s production...production of copper, coal, gold, lead, manganese, phosphate, silver, talc, vermiculite, and zinc is impressive...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...2. Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded |  | | Report (issue) | | HYDROTHERMAL AND MAGMATIC MINERAL DEPOSITS Page Magma, Mine,;Superior (oo. ciges Rocttactek ors eno os es snl...NevadaiGity —'Grass: Valley) iter ore ae ee Shasta County a eee cere asses ee avs Oe ee COlOTAMGS ee Pie...mines of which a district is composed but rather that the geological conditions from one mine to another within...within the district are so generally the same that what is said of one mine will be true for the others...Ee oe Africa lexelkeeenat (COM: hse 2 oie a South America ISOMVIA" wicericr oe AM. nto We 5 Ed |  | | Report (volume) | | GEOLOGY OF THE REGION AROUND LEAD SOUTH DAKOTA \ AND ITS BEARING ON THE HOMESTAKE ORE BODY BY SIDNEY PAIGE...________ Chemical analyses of rocks, minerals, and mine water_____ Structure______________ ________________...shown on mine levels_____________!__ Mineralization__________ Sulphides ___-___ _ Magnetite ________...gold ores in Cambrian dolomites and ore of the Homestake lode______ ___ Fossil placer deposits in Cambrian... ILLUSTRATIONS PLATE I. Geologic map of the vicinity of Lead, S. Dak.__ _____________ II. A, Carbonate ore from |  | | Journal (article/letter/editorial) | | SEPTEMBER 1948 HIGH-POTASH DIKES IN THE HOMESTAKE MINE, LEAD, SOUTH DAKOTA BY JAMES A. NOBLE CONTENTS Abstract...northern Black Hills Rhyolite dikes in the Homestake Mine Other occurrences of high potash dikes Origin...Origin of the high potash rhyolite dikes in the Homestake Mine References cited Page 927 927 928 930 934...Photomicrographs of typical sections of rhyolite from the Homestake mine Page 933 934 936 Facing page 930 ABSTRACT...circular area of about 10-mile radius with Lead and the Homestake Mine at the center. Five rock types are represented: |  | Steadman, Jeffrey A., Large, Ross R., Davidson, Garry J., Bull, Stuart W., Thompson, Jay, Ireland, Trevor R., Holden, Peter (2014) Paragenesis and composition of ore minerals in the Randalls BIF-hosted gold deposits, Yilgarn Craton, Western Australia: Implications for the timing of deposit formation and constraints on gold sources. Precambrian Research, 243. 110-132 doi:10.1016/j.precamres.2014.01.002 | Journal (article/letter/editorial) | | Pyrite Black shale a b s t r a c t The Randalls district comprises three individual gold deposits – Cock-Eyed...and/or electrum within or around pyrrhotite, magnetite, and arsenopyrite. The earliest mineral assemblage...iron formation at Randalls is banded magnetite–quartz. Magnetite in all forms has elevated Mg, Al, Ti...“blebs”, and veinlets, all of which have replaced magnetite. Some pyrrhotite in the hydrothermally altered...show that they were not inherited from replaced magnetite. Further, these characteristics suggest that the |  | Oyarzun, Roberto, Lillo, Javier, Oyarzun, Jorge, Maturana, Hugo, Canut, Claudio, Andreani, Sebastian (2010) Restrictive definition of asbestos and the assessment of potential health hazards: insights from Northern Chile. International Geology Review, 52 (9) 955-963 doi:10.1080/00206810903211278 | Journal (article/letter/editorial) | | non-harmful. A case of mesothelioma in the small mining town of La Higuera, northern Chile, may shed some...asbestiform amphibole; actinolite; mesothelioma; mining; La Higuera; Chile Introduction A major problem...potential environmental risks associated with some mine wastes, in which ‘non-asbestiform’ amphibole-group...1a). The largest deposits have reserves (before mining) in the order of 200–400 Mt (60% Fe), whereas the...among others) consists of veins and veinlets of magnetite (Fe3O4), breccias, disseminations and massive |  | | Journal (article/letter/editorial) | | Rocky Mountain uplifts in Montana, Wyoming, and South Dakota, and in the southwesternstates of Colorado,...iron-formationin the Lake Superiorregionis in the Iron River district,where a 50foot bed containing35 to 40 percentpyrite...have been highly metamorphosed and deformed. Magnetite and quartz are the dominantconstituents. Lithologic...of central Arizona, where thin-beddedchert and magnetite form lenseswithin volcanicand volcaniclastic stratathat...Wisconsin,and Michi"Geologyof the Wyoming, and South Dakota. A few depositsof gan culminatedin the monumental |  | | Journal (issue) | | ....755 by D. Trinchillo Sapat Gali, Mansehra District, Khyber Pakhtunkhwa Province, Pakistan .........Wilson Black topaz from the Thomas Range, Juab County, Utah .....................805 by A. Sikorski &...“King of Kashmir”), 80 cm, from the Biangsapi Gon mine near Nyet Bruk, Pakistan. Private collection; James...Elliott photo, Fine Minerals International. See the lead article in this issue Subscription (U.S. only):...$324/three years, (Canada) $196/one year, (outside USA other than Canada) $275 for one year Subscription |  | | Journal (article/letter/editorial) | | secretary-treasurer of the Yavapai Council, Arizona Small Mine Operators, collects rare rocks as a hobby. Some..."Three specimens from the Governor Mine (old New York Mine), a gold mine in the Mint Canyon area, West San...Pacific R. R. "One of the largest producers in the county, it has yielded over 2 million dollars worth of...about 1880; now idle. Name was changed to Governor Mine when the property was acquired by Gov. Gage of California...California. "The principal rock of the district is granodiorite. The vein is a quartz-filled fissure |  | | Report (issue) | | History of the Iron Industry in Utah · .1 Beaver County . . . . . . . . . . . . .2 Beaver Lake Mountains... .2 . . . . . . . . . . .2 Black Rock mine . . . Skylark mine . . . . . . . . . . . . . . . . . . . .... . · .. 4 Creole mine . . . . . . . . . . . . . . . . . . . . . · .. 4 Cave mine . . . . . . . . . ... 4 Iron mine . . . . . . ......... . . 10 Star Range deposits . . . . . .10 Copper King mine .10 Rocky...Hickory mine . . . . · . 11 Montreal magnetite-copper property . . . . . .11 Bawana magnetite-copper mine |  | | Report (issue) | | Variation in fineness of gold with depth, Lily mine, Transvaal, South Jlfrica ------------------------------...of mill bullion prior to 1882 at the Homestake nrlne, South Dakota -----------------------------------... galena, molybdenite, tellurides, selenides, magnetite, scheelite, feldspar, sericite, biotite, chlorite...--------------Iridosmine, ( Os,Ir) Australia, New South Wales _____ 150 >1,000 200 >1,000 800 U.S...CusFeS, Germany, Mansfeld -------------Galena, PbS South Africa -------------------Clausthalite, PbSe Germany |
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