 | | Report (issue) | | noftonclature* Frui>ar«d in oooperation >dth the liorth Carolina Dep&rtaent of Conservation and Development* C05TSHTS...Metamorphic rocks ................ Mica rocks of the Carolina-type ....... Mioa gneiss .............. Mica schist...schist .............. Petrograpljy of the Carolina-type rocks . Structure and texture ....... Mineral.............. Cranberry gneiss ................ Carolina-type rocks .....*.......* Roan-type rocks ......the Plumtree area, Spruce Pine district, Forth Carolina.............................. In por&et 2» Photomicrographs |  | | Report (volume) | | deposits of the Nightingale district, Pershing County, Nev., by W. C. Smith and P. W. Guild (published........ Topaz deposits near the Brewer mine, Chesterfield County, S. C., by Carl Pries, Jr. (published...quicksilver deposits of the Del Puerto area, Stanislaus County, Calif., by H. E. Hawkes, Jr., F. G. Wells, and..... Quicksilver deposits near the Little Missouri River, Pike County, Ark., by David Gallagher (published...Pershing County, Nev.................................. In pocket Geologic map of the Nightingale mine area |  | | Report (issue) | | Mica Deposits of the Blue Ridge in North Carolina GEOLOGICAL SURVEY PROFESSIONAL PAPER 577 Work done...done in part in cooperation with the North Carolina Department of Conservation and Development and in part...Administration Mica Deposits of the Blue Ridge in North Carolina By FRANK G. LESURE GEOLOGICAL SURVEY PROFESSIONAL... Work done in part in cooperation with the North Carolina Department of Conservation and Development... Geologic map of part of the Blue Ridge of North Carolina and Tennessee. 2-6. Maps showing location of |  | | Journal (article/letter/editorial) | | Missouri, 101 Geological Sciences, Columbia, MO 65211, USA a r t i c l e i n f o Article history: Received...similar to the neighboring, slightly older 2.56 Ga Little Elk granite-gneiss. These two intrusions support...composition of mafic rocks in the Rochford district in the north-central part of the Precambrian core. These mafic...Geology, University of NebraskaOmaha, Omaha, NE 68182, USA. 0301-9268/$ – see front matter © 2008 Elsevier B...faults. Some major faults are labeled. LEG is Little Elk Granite and BMG is Bear Mountain Granite. Four |  | | Book | | MINES MINERS MINERALS AND OF WESTERN NORTH CAROLINA Western North Carolina’s Hidden Mineralogical Treasures...E L L 2005 PARKWAY PUBLISHERS, INC. Boone, North Carolina Copyright ©1999 Lowell Presnell All Rights...Mines, miners, and minerals of western North Carolina : western North Carolina’s hidden mineralogical treasures...(hard cover) 1. Mines and mineral resources—North Carolina—History. I. Title. TN24.N8P74 2005 338.4‚7622‚09756—dc22...Domestic Mica Buying Policy 111 20. Western North Carolina & the War Years .119 21. The Mineral Kingdom |  | | Journal (article/letter/editorial) | | Neoarchean granitoids from the Black Hills, South Dakota, USA: implications for crustal evolution in the Archean...Geology, Kent State University, Kent, OH 44242, USA Geological Survey of Canada, 600 Booth St., Ottawa...eastern Wyoming province (Black Hills, South Dakota, USA) have been analyzed by ion microprobe (SHRIMP) in...by Archean biotite–feldspar gneiss (BFG) and Little Elk gneissic granite (LEG), both of which intrude...(BMG) of previously unknown age intrudes biotite–plagioclase schist. Zircon crystals from the BMG are highly |  | Gosselin, D. C., Papike, J. J., Shearer, C. K., Peterman, Z. E., Laul, J. C. (1990) Geochemistry and origin of Archean granites from the Black Hills, South Dakota. Canadian Journal of Earth Sciences, 27 (1) 57-71 doi:10.1139/e90-005 | Journal (article/letter/editorial) | | use only. Revision accepted July 24, 1989 The Little Elk Granite (2549 Ma) and granite at Bear Mountain...modelling and Nd isotopic data indicate that the Little Elk Granite was generated by the partial melting...ancient continental suture zones. Le Granite de Little Elk (2549 Ma) et le granite qui affleure dans les...isotopiques du Nd rkvklent que le Granite de Little Elk dkrive de la fusion partielle d'une roche-mkre...Earth Sci. 27, 57-71 (1990) Introduction The Little Elk Granite and granite at Bear Mountain of the Black |  | | Report (issue) | | Precambrian Estes Conglomerate, Nemo District, Lawrence County, South Dakota A preliminary report By F. Allan...geology Black Hills Nemo District Stratigraphy Little Elk Granite Boxelder Creek Quartzite Benchmark Iron-formation...and thorium content of Estes Conglomerate and Little Elk Granite 21 Uranium and thorium in the middle...Precambrian Estes Conglomerate, Nemo District, Lawrence County, South Dakota A preliminary report by F. Allan...associated with extensive epicontinental rocks in North America (for example, the Matinenda Formation at |  | Rye, Danny M., Doe, B. R., Delevaux, Maryse H. (1974) Homestake Gold Mine, South Dakota; II, Lead Isotopes, Mineralization Ages, and Source of Lead in Ores of the Northern Black Hills. Economic Geology, 69 (6) 814-822 doi:10.2113/gsecongeo.69.6.814 | Journal (article/letter/editorial) | | Geology Vol. 69, 1974, pp. 814-822 Homestake Gold Mine, South Dakota: II. Lead Isotopes,MineralizationAges...Precambrianrocksin the HomeSlaughter(1968, p. 1449-1450). stake mine at Lead, South Dakota, which has proOn the basis...intrusive rocks (FIN. 1), Survey. 814 HOMESTAKE GOLD MINE: II 815 105040' 44* MDI Lead 440 20' •;d...outliers on the Precambrian rocks 1966). The Little Elk granitealsomay havebe(NobleandHarder,1948;Runner...undergonethe The Little Elk granite forms the basementrock same regional metamorphismas the Little Elk alongLittle |  | Walker, Richard J., Hanson, G.N., Papike, J.J., O'Neil, J.R. (1986) Nd, O and Sr isotopic constraints on the origin of Precambrian rocks, Southern Black Hills, South Dakota. Geochimica et Cosmochimica Acta, 50 (12) 2833-2846 doi:10.1016/0016-7037(86)90230-9 | Journal (article/letter/editorial) | | therefore crucial for interpreting the growth of the North American craton, and for defining the processes...detailed in WALKER (1984). Archean granites The Little Elk Granite and the granite at Bear Mountain are...oldest rocks dated in the region. The Little Elk Granite, or Elk Creek Gneissoid Granite, described by...by TAYLOR (1935), crops out in the north-eastern Black Hills. The granite is medium-grained, gneissic...gneissic, and is comprised primarily of plagioclase (AntO_23), microcline (Or93_96), quartz, biotite and muscovite |  | | Report (issue) | | under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority Physical...under a cooperative agreement with the State of North Carolina and the Tennessee Falley Authority UNITED...Production of sheet and punch mica, 1912-14, in North Carolina, the Southeastern States, and the entire United...data for mica specimens, arranged by lot and by mine or prospect-_-___--_-___-_-.___---___-_____--_ Results..._______________ 13. Test data for mica (not identified by mine), taken from the production line of the Colonial |  | Teng, F.-Z., McDonough, W. F., Rudnick, R. L., Walker, R. J., Sirbescu, M.-L. C. (2006) Lithium isotopic systematics of granites and pegmatites from the Black Hills, South Dakota. American Mineralogist, 91 (10) 1488-1498 doi:10.2138/am.2006.2083 | Journal (article/letter/editorial) | | muscovite (0.2 to 2.0 wt%), plagioclase (100–1100 ppm), quartz (30–140 ppm). Plagioclase, muscovite, and spodumene...Richter et al. 2003; Teng et al. 2006a). In contrast, little isotopic fractionation is inferred to occur during...terrane consists of two Late Archean metagranites (Little Elk and Bear Mountain), early Proterozoic metasedimentary... The schist is composed of quartz, biotite, plagioclase, and occasional minor muscovite, and has considerable...granites, the Little Elk granite and the Bear Mountain granite, crop out in the region. The little Elk granite |  | | Report (volume) | | Metadiabase sills in Negaunee Iron-formation near National Mine, Mich., by George C. Simmons ___________________...Lake sill ______________________________ National Mine sill _____________________________ Ash-flow stratigraphy...Pony Trail Group in the Cortez Mountains, Eureka County, Nev., by J. Fred Smith, Jr ________________________...metadiabase sills in Negaunee Iron-formation near National Mine, Mich _ 7. Columnar sections of metadiabase sills..._____ Northeastern Michigan. Precambrian Y (pre- North western Montana. Ravalli). Absaroka Volcanic Supergroup |  | | Report (issue) | | Cumberland, Hobart, and MapleValley Quadrangles, King County, Washington GEOLOGICAL SURVEY PROFESSIONAL PAPER...Cumberland, Hobart, and Maple Valley Quadrangles, King County, Washington By JAMES D. VINE GEOLOGICAL SURVEY...Cumberland, Hobart, and Maple Valley quadrangles, King County, Wash. 2. Columnar sections, showing the lithology...Photograph showing igneous sill intruded into the Big Elk coal bed____________________________________ 16....Washington______________________________ 17. Photograph of strip mine in the Franklin No. 12 coal bed________________ |  | | Report (volume) | | State Museum, Albany. North Carolina.. .Dr. Joseph Hyde Pratt, Chapel Hill. North Dakota... .Dr. A. G...... .Prof. Charles W. Brown, Providence. South Carolina.. .Dr. Earle Sloan, Charleston. South Dakota....See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found...commercial quantity or quality. Asphalt. Colbert County, small quantity has been shipped from near Leighton;...following localities: Bibb County, Pratts Ferry; Calhoun County, near Tampa; Clay County, T. 20, Pv. 7 E.; Jefferson |  | | Journal (article/letter/editorial) | | Bear Mountain along the western margin and near Little Elk Creek at the northwestern margin of the exposed...the late-Archean granites at Bear Mountain and Little Elk Creek with ages 2596 and 2560, respectively (McCombs... Archean exposures at Bear Mountain (BC) and Little Elk Creek (LEC) are noted. NABELEK ET AL.: POLYMETAMORPHISM...et al. 2005a, 2005b) and has been attributed to north-vergent accretion of island arcs along the Cheyenne...metamorphic grades in the Black Hills far to the north of the HPG (Table 2; Fig. 1). Helms and Labotka |  | | Report (volume) | | ......... North Carolina. .......................................................... North Dakota............................................. South Carolina......................................:..........1888. Branner, J. C., The zinc and lead region of north Arkansas: Arkansas Geol. Survey Ann. Kept, for 1892...Compendium of the mineral resources of Arkansas, Little Rock Board of Trade Bulletin, 1912. Eakle, A. S...Fair edition, 1904. Genth, F. A., Minerals of North Carolina: U. S. Geol. Survey Bull. 74, 1891. Shannon |  | Peterman, Z.E., Bunker, C.M., Bush, C.A., Bryant, Bruce, Marvin, R.F., Naeser, C.W., Mehnert, H.H., Izett, G.A., Obradovich, J.D., Cebula, G.T. (1981) Shorter contributions to isotope research in the Western United States, 1980. Professional Paper 1199ae. US Geological Survey doi:10.3133/pp1199ae | Report (issue) | | Western United States, 1980 Archean Gneisses in the Little Rocky Mountains, Montana By ZELL E. PETERMAN Radioelement...Dating of the Climax and Gold Meadows Stocks, Nye County, Nevada By C. W. NAESER and FLORIAN MALDONADO ...the chapters] Page (A) Archean gneisses in the Little Rocky Mountains, Montana, by Zell E. Peterman (B)...dating of the Climax and Gold Meadows stocks, Nye County, Nevada, by C. W. Naeser and Florian Maldonado...flux 1 7 15 37 45 Archean Gneisses in the Little Rocky Mountains, Montana By ZELL E. PETERMAN SHORTER |  | | Report (volume) | | 114 Miscellaneous commodities 115 Utilization of mine tailings 115 Aluminum 115 Bentonite 115 Mineral...and ongoing interests. The world-famous Homestake mine, historically the largest producer of gold in the...Mountains of Wyoming. It extends southeast 115 mi from north of Sundance, Wyo., to south of Hot Springs, S. Dak...Springs, to 7,242 ft at the top of Harney Peak, north of Custer. The rocks in the Forest range from those...Custer. The search for more gold led prospectors north from Custer to find other placer deposits in the |  | | Report (issue) | | _. ____________ ... _. __ .. 32 Lolo Fork and north end of Bitterroot Range . ____ . _. __ . __ -.....Page. Descriptive geology-Continued. Lolo Fork and north end of Bitterroot Range-Continued. Geology-Continued............. ___ . _________ . __ .. --- _.. _.. North end of the range. __ . ___ .... _...... __ ._ ...._____ . _.. __ . __ ....... - . -- .. - - .. -- -North end of Bitterroot Range. _________ . ___ ._ ......______ ..... _........ _....•••. -----... Curlew mine. _________ . __..... ___ . ____ . _.. __ . _... |  | | Report (volume) | | In addition to these, a useful time scale for North American mammalian stages is given by: (B) Evernden...dates and the Cenozoic mammalian chronology of North America: Amer. Jour. Sci., v. 262, p. 145-l98. £/From...Correlation chart for the Carboniferous of north-west Europe, Russin, and North America: Geol. Soc. London, 196411... and Kopf, Rudolph W., 1957, Geologic names of North America introduced in 1936-1955: U.S. Geol. Survey...Highway 49 (Skyway Road) near town of Abel, Cleburne County. Absaroka Supergroup/Volcanic Supergroup U ABRK03 |  | | Report (issue) | | 7 Bibliography . . . . . 229 Appendix: 252 Mine Index iii NOTATIONS AND ABBREVIATIONS CHEMICAL...prospects in the lower Ludlow lignites. Harding County: 1. Abemathyite has been identified as a component...meta-uranocircite in uraniferous lignite at the Hilltop mine in sec. 12, Tl6N, R8E, in the Slim Buttes area....Soluble In hydrochloric acid, yielding Custer County: 1. Allanite has been reported to occur as small...the Needles area. Runner (7) p 453. Pennington County: 1. Allanite occurs as microscopic inclusions in |  | | Report (issue) | | part of the Roberts thrust, Toiyabe Range, Lander County, Nev., by J. H. Stewart and A. R. Palmer _____...Ordovician tectonism in the Ruby Mountains, Elko County,· Nev., by Ronald Willden and R. W. Kistler__ _...Isotopic age and geologic relationships of the Little Elk Granite, northern Black Hills, South Dakota,...in the southern Santa Rita Mountains, Santa Cruz County, Ariz., by Harald Drewes----------------------...salt-water intrusion in the Duwamish River estuary, King County, Wash., by J.D. Stoner_____________ 242 247 253 |  | | Report (volume) | | Bisbee Group, Empire Mountains quadrangle, Pima County, Arizona, by Tommy L. Finnell-_______________________...(Barker, 1958) for exposures about 0.2 to 1 mile north and northwest of Big Rock. The type locality is...fresh and contains phenocrysts of olivine and plagioclase (labradorite) in an intergranular groundmass...small unnamed island about 1 mile northwest of the north entrance to Tlevak Strait, the Tlevak Basalt unconfonnably...BISBEE GROUP, EMPIRE MOUNTAINS QUADRANGLE, PIMA COUNTY, ARIZONA By TOMMY L. FINNELL A thick sequence |  | | Journal (article/letter/editorial) | | is among the most familiar granite exposures in North America. Various field studies have shown that the...Peak Granite complex, Little Elk Granite and Bear Mountain Granite. The Little Elk Granite and the Bear...zircon upper intercept age of 2549 + 11 Ma for the Little Elk Granite, in good agreement with the previously...Proterozoic. New crust of this age is uncommon in North America. The age of the Harney Peak Granite complex...before the latest Archean. The 333 Late Archean Little Elk Granite, or its protoliths, may have been this |
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