 | | Journal (article/letter/editorial) | | Geography, Auburn University, Auburn, AL 36849, USA; E-Mail: saundja@auburn.edu; Tel.: +1-334-844-4884...sulfidation (LS) epithermal deposits in the western USA often show evidence of the former presence of nanoparticle-sized...the banded bonanza veins typical of many western USA epithermal deposits. Chalcopyrite is the most abundant...of these Tertiary banded bonanza ores in western USA (Figure 1) reveal some universal features in these...former presence of amorphous silica precursors or chalcedony in addition to direct quartz precipitation; (2) |  | Saunders, J. A., Unger, D. L., Kamenov, G. D., Fayek, M., Hames, W. E., Utterback, W. C. (2008) Genesis of Middle Miocene Yellowstone hotspot-related bonanza epithermal Au–Ag deposits, Northern Great Basin, USA. Mineralium Deposita, 43 (7) 715-734 doi:10.1007/s00126-008-0201-7 | Journal (article/letter/editorial) | | epithermal Au–Ag deposits, Northern Great Basin, USA J. A. Saunders & D. L. Unger & G. D. Kamenov & M...Auburn University, 210 Petrie Hall, Auburn, AL 36849, USA e-mail: saundja@auburn.edu G. D. Kamenov Department...Williamson Hall, P.O. Box 112120, Gainesville, FL 32611, USA M. Fayek Department of Geological Sciences, University...89445, USA Present address: D. L. Unger Victoria Resources, 240 S. Rock Blvd., Reno, NV 89502, USA textures...gels) from super-highgrade banded ores from the Sleeper deposit show that oreforming solutions had δ18O |  | | Report (issue) | | and geochemistry of the Sleeper Gold-Silver Deposit, Humboldt County, Nevada an interim report By J................................................. Mining and exploration history......................................................................... Mine geology...........................................Figure 1. Location and geology setting of the Sleeper mine. Regional geology is simplified from Wilden....... 3 Figure 2. Generalized geology of the Sleeper mine area and western foothills of the Slumbering |  | | Journal (article/letter/editorial) | | the genesis of bonanza Au-Ag ores of the Sleeper deposit, Nevada J.A. Saunders, P.A. Schoenly Department...Geology,Auburn University,Auburn, AL 3684%5305, USA Received: 29 November 1993/Accepted: 23 May 1994...composition for bonanza oreforming fluids at the Sleeper deposit was calculated by the computer program...in vein samples below the bonanza zones: gold, chalcedony, adularia, pyrite, chalcopyrite, and acanthite...factor in the genesis of bonanza Au-Ag ores at the Sleeper deposit. Geochemical modelling of possible ore-forming |  | John, D. A., Hofstra, A. H., Fleck, R. J., Brummer, J. E., Saderholm, E. C. (2003) Geologic Setting and Genesis of the Mule Canyon Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central Nevada. Economic Geology, 98 (2) 425-463 doi:10.2113/gsecongeo.98.2.425 | Journal (article/letter/editorial) | | Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central Nevada DAVID A. JOHN,† U.S. Geological Survey, 345 Middlefield...Company, Yanacocha, Peru Abstract The Mule Canyon mine exploited shallow, low-sulfidation, epithermal Au-Ag...the west side of the Northern Nevada rift in northern Lander County, Nevada. Mule Canyon consists of six...e-mail, djohn@usgs.gov *Present address: Newmont Mining Corp., PO Box 388, Valmy, NV 89438. 0361-0128/01/3335/425-39...basalt-rhyolite magmatism in the Great Basin, such as Sleeper, Midas, and Buckhorn. Major differences at Mule |  | Saunders, James A., Mathur, Ryan, Kamenov, George D., Shimizu, Toru, Brueseke, Matthew E. (2016) New isotopic evidence bearing on bonanza (Au-Ag) epithermal ore-forming processes. Mineralium Deposita, 51 (1) 1-11 doi:10.1007/s00126-015-0623-y | Journal (article/letter/editorial) | | 36849, USA 2 Department of Geology, Juniata College, 1700 Moore Street, Huntingdon, PA 16652, USA 3 ...Williamson Hall, P.O. Box 112120, Gainesville, FL 32611, USA 4 Magma-hydrothermal deposits Research Group, Geological...Geology, Kansas State University, Manhattan, KS 66506, USA consistent with ore textures that indicate physical...map showing deposits or districts in the western USA and Japan where we recognize colloid aggregation...Cu isotope data from epithermal ores from western USA and Japan, along with well-constrained new Pb and |  | | Journal (article/letter/editorial) | | assemblage include deposits in the Midas (Ken Snyder), Sleeper, DeLamar, Mule Canyon, Buckhorn, National, Hog...showed that lowsulfidation deposits in northern Nevada could be divided into two subtypes based on their...ve Ri Yellowstone Hot Spot Wyoming 0 Ma 40° Nevada S ie GREAT BASIN rra NNR Utah Ne da va California...tectonic features. Heavy line indicates the northern Nevada rift. The heavy star at the north end of the rift...Walker Lane belt from Stewart (1988). NNR = northern Nevada rift, SM = Steens Mountain. mineral assemblages |  | | Journal (article/letter/editorial) | | Correlations at Buckskin Mountain, National District, Humboldt County, Nevada PETER G. VIKRE† U.S. Geological Survey...Sciences and Engineering, University of Nevada, Reno, Reno, Nevada 89557 Abstract At Buckskin Mountain...Mountain (elev 2,650 m, 8,743 ft), Humboldt County, Nevada, a hydrothermal system, imposed on a middle Miocene...rhyolite and initially crystallized as opal and chalcedony. The low thermal conductivity of homogeneous...BUCKSKIN MOUNTAIN in the National district, Humboldt County, Nevada, altered and mineralized volcanic |  | Peters, S.G., Nash, J.T., John, D.A., Spanski, G.T., King, H.D., Connors, K.A., Moring, B.C., Doebrich, J.L., McGuire, D.J., Albino, G.V., Dunn, V.C., Theodore, T.G., Ludington, S.D. (1996) Metallic mineral resources in the U.S. Bureau of Land Management's Winnemucca District and Surprise Resource Area, northwest Nevada and northeast California. Open-File Report Vol. 1996 (96-712) US Geological Survey doi:10.3133/ofr96712 | Report (issue) | | Management's Winnemucca District and Surprise Resource Area, northwest Nevada and northeast California...Ludington3 Open-File Report 96-712 1996 1 Reno, Nevada 89557 2 Denver, Colorado 80228 3 Menlo Park, California...Canada 7 U.S. Bureau of Land Management, Winnemucca, Nevada 89445 This report is preliminary and has not been............................................. 18 Humboldt River porphyry tracL............................Study Areas and other areas in the Winnemucca District and Surprise Resource Area for which resource |  | | Journal (article/letter/editorial) | | TEXTURES IN BONANZA ORES OF THE SLEEPER DEPOSIT, HUMBOLDT COUNTY, NEVADA: EVIDENCE FOR COLLOIDS AND IMPLICATIONS...Sleeperprovidessomeusefulconstraints posit, Humboldt County, Nevada, exhibit textural on ore-formingprocesses...of the bonanzaportionsof theseveinsapparently Sleeper ores. This communicationpresentsaddiformedat depths(...HumboldtCounty, The millimeter-scalebandingin bonanzaore at Nevada,approximately 45 km northwestof WinneSleeper provides...in the bandedbonanza ore hasnotbeenobservedat Sleeper,precludingthe useof fluidinclusionmicrothermometry |  | | Journal (article/letter/editorial) | | Geosciences, Auburn University, Auburn, AL 36849, USA Department of Geology and Environmental Earth Science...Science, Miami University, Oxford, OH 45056, USA; burkeml2@miamioh.edu Correspondence: saundja@auburn.edu;...discovery of the bonanza Au-Ag deposit in the mid-1980s Nevada, and the previous work on the “gold colloid theory”...topic. The discovery of the bonanza epithermal Sleeper Au-Ag deposit in the mid-1980s in transport can...systems. Further, Herrington and Wilkinson [15] Nevada, and the discovery of nanoparticulate textures |  | Leavitt, E. D., Spell, T. L., Goldstrand, P. M., Arehart, G. B. (2004) Geochronology of the Midas Low-Sulfidation Epithermal Gold-Silver Deposit, Elko County, Nevada. Economic Geology, 99 (8) 1665-1686 doi:10.2113/gsecongeo.99.8.1665 | Journal (article/letter/editorial) | | Low-Sulfidation Epithermal Gold-Silver Deposit, Elko County, Nevada E. D. LEAVITT,† Department of Geological Sciences...Sciences, Mail Stop 172, University of Nevada, Reno, Reno, Nevada 89557-0001 T. L. SPELL, Department of...Geoscience, University of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4010 P. M. GOLDSTRAND...GOLDSTRAND, Bureau of Mining Regulation and Reclamation, 333 W. Nye Lane, Carson City, Nevada 98706 AND G. B...Geological Sciences, Mail Stop 172, University of Nevada, Reno, Reno, NV 89557-0001 Abstract The Midas |  | | Journal (article/letter/editorial) | | CO 80401, USA; tmonecke@mines.edu FLUID INC., 1401 Wewatta St. #PH3, Denver, CO 80202, USA; fluidinc@comcast...low-sulfidation epithermal precious metal deposit in Nevada showed that colloform bands in these veins exhibit...low-sulfidation epithermal quartz veins from the Sleeper deposit in Nevada forms dendrites intergrown with fine-grained...low-sulfidation epithermal gold–silver deposit in Nevada. Both silica deposits are composed of silica microspheres...Deposit in Nevada 7 of 18 7 of 18 3. Epithermal Veins from the Buckskin National Deposit in Nevada 3.1. |  | | Journal (article/letter/editorial) | | 409–424 Geology of the Ivanhoe Hg-Au District, Northern Nevada: Influence of Miocene Volcanism, Lakes...Geological Survey, MS 176, University of Nevada, Reno, Reno, Nevada 89557-0047 Abstract The mercury-gold...mercury-gold deposits of the Ivanhoe mining district in northern Nevada formed when middle Miocene rhyolitic volcanism...west-central part of the district. Thus, although mineralization in the district took place during a span...shorter. The low-sulfidation deposits of the Ivanhoe district formed at the same time and under similar conditions |  | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA Peer Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU... UNIVERSITY Reno & Las Vegas OF NEVADA PRESS GEOLOGY Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...otherwise noted Map of Mining Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines...Cataloging-in-Publication Data Castor, Stephen B, Minerals of Nevada / Stephen B. Castor and Gregory C. Ferdock.— Ist | | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA STEPHEN B. CASTOR and G R EGOR Y C . F E R D OC K l NEVADA BUREAU...association with the UNIVERSITY OF NEVADA PRESS Reno & Las Vegas Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright© 2004 by Uni versity of Nevada Press Photographs...Districts and si gnificant minernl occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved...-Publ ication Dat,i Castor, Stephen B. Minerals of Nevada/ Stephen B. Castor and Gregory C. Ferdock.- rst |  | | Report (volume) | | Wilderness Study Area, Harney County, Oregon, and Humboldt County, Nevada U.S. GEOLOGICAL SURVEY BULLETIN...Wilderness Study Area, Harney County, Oregon, and Humboldt County, Nevada By ROBERT C. ROBACK, DEAN B....Wilderness Study Area, Harney County, Oregon, and Humboldt County, Nevada. U.S. Geological Survey Bulletin...(OR-002-081/NV-020-642) Harney County, Oregon, and Humboldt County, Nevada. CONTENTS Summary Bl Abstract...Wilderness Study Area, Harney County, Oregon, and Humboldt County, Nevada FIGURES 1. Index map showing |  | Tharalson, Erik, Monecke, Thomas, Reynolds, T., Zeeck, Lauren, Pfaff, Katharina, Kelly, Nigel (2019) The Distribution of Precious Metals in High-Grade Banded Quartz Veins from Low-Sulfidation Epithermal Deposits: Constraints from µXRF Mapping. Minerals, 9 (12) 740 doi:10.3390/min9120740 | Journal (article/letter/editorial) | | of Mines, 1516 Illinois Street, Golden, CO 80401, USA; tmonecke@mines.edu (T.M.); lzeeck@mines.edu (L.Z...80202, USA; fluidinc@comcast.net Bruker Nano Analytics, 415 N Quay Street, Kennewick, WA 99336, USA; Nigel...deposits worldwide, including Buckskin National in Nevada [14]; Hokuryu Minerals 2019, 9, 740; doi:10.3390/min9120740...Ivanhoe in Nevada [14]; Koryu in Japan [7,12]; Kushikino in Japan [5]; and Midas in Nevada [9]. Some of...deposit in Nevada, and the Sado Kinzan deposit in Japan. The Hokuryu deposit in the Omu mining camp of Hokkaido |  | | Journal (article/letter/editorial) | | Occurrences of dendritic gold at the McLaughlin Mine hot-spring gold deposit R.L. Sherlock 1, N.J. Lehrman...Columbia, V6T lZ4 Homestake Mining Company, 1375 Greg St. Suite 105, Sparks, Nevada, 89431 Received: 24 January...dendrites are variably developed at the McLaughlin Mine. The most abundant occurrence is hosted by amber-coloured...including, the McLaughlin Mine, the Geysers Geothermal System and the Sulphur Bank Mine, are associated with...McLaughlin gold deposit was discovered by Homestake Mining Company during an exploration program for gold |  | | Report (issue) | | wu OUTLINE OF NEVADA MINING HISTORY— Joseph V: Tingley a RobertC.Horton _ Francis C. Lincoln 3 . ...Publication of this new edition of “Outline of Nevada Mining History” was made — possible with the assistance...eh aa nearly 48 million acres of public land in Nevada. Most of the minerals, _ _ geothermal energy, and...ahij 4 = Wh A a ‘ a a y 4 Pte Es in Nevada comes from publicland. First edition, first printing...Leshendok, U.S. Bureau of Land Management Eric Moody, Nevada Historical Society é Jon Price, National Research |  | | Journal (article/letter/editorial) | | 1989).The Great Au-Agdeposit,locatedin northwestern Nevada,nearthe Basinof thewesternUnitedStatesissusceptible...ficial acidsulfatealteration. CurrentAu-Ag(Hg) mining pandedandcontracted according to palcoclimatic...SpringGoldCorporation, 4650SierraMadre#813, fate alteration Reno, Nevada 89502. silicification, resulting in theleaching...fresh-water Sleeper 41'15' -tog Ranch >z Sulphur (abandoned) o ø e.> HUMBOLDT COUNTY ß-r' PERSHING...PERSHING COUNTY ... I I ;rofoot/Lewis Mine the basin 12 km north of the Crofoot-Lewismine (Garside et |  | | Journal (article/letter/editorial) | | Gold Company, 9670 Gateway Drive, Suite 200, Reno, Nevada 89521. 0361-0128/07/3685/923-26 et al., 1995;...for rocks surrounding epithermal deposits at Sleeper, Nevada, United States, and Mount Muro, Kalimantan...propylitic propylitic P 50-100 m 0-10 m quartz chalcedony adularia carbonates pyrite, Au-Ag, Ag-Pb-Zn lattice...San Cristóbal 54Ma El Peñón 52-53Ma property/ district 24° La Escondida deposit El Soldado 51-53Ma...Muro, Indonesia, and Sleeper, Nevada, United States The Mount Muro and Sleeper epithermal Au-Ag deposits |  | | Journal (article/letter/editorial) | | features of fluid inclusions in quartz at the same mine level reveals three types of fluid conditions—intense...an average grade of 15.1 g/t of Au (Nodatamagawa Mining Development, Inc., 1995). From 1988 to 2006, the...an average grade of 40 g/t of Au (Nodatamagawa Mining Development, Inc., 1995; Shimizu et al., 1998)...an estimated ~3 tonnes Au was produced before the mine closed, based on a calculation using the data of...500 m b SW Schematic cross section NE ‘A (m) mine level 150 90 30 -30 A No. 3 vein No. 2 vein No |  | | Journal (article/letter/editorial) | | sphalerite–wurtzite colloform textures from lead–zinc ores in the USA and Europe as formed via direct crystallization from...understood yet but of considerable importance for gold mining. There are numerous papers on the textures of hydrothermal...deposit is outstanding because it is the oldest gold mine in Europe, operating from 1,500 to about 600 BC...quartz with rare pyrite and adularia; (2) opal, chalcedony, adularia, pyrite, electrum, and Au–Ag tellurides;...and is in development for open-pit mining by Balkan Mineral and Mining (Jelev 2007). Results and interpretation |  | Moussa, N., Boiron, M.C-, Grassineau, N.V., Asael, D., Fouquet, Y., Le Gall, B., Rolet, Joël, Etoubleau, J., Delacourt, C. (2019) Mineralogy, fluid inclusions and stable isotope study of epithermal Au-Ag-Bi-Te mineralization from the SE Afar Rift (Djibouti) Ore Geology Reviews, 111. 102916 doi:10.1016/j.oregeorev.2019.05.002 | Journal (article/letter/editorial) | | Geophysics, Yale University, New Haven, CT 06520 USA *Corresponding Author: nmoussae@gmail.com Journal:...stockwork that comprises two types of veins: (1) chalcedony veins enriched with sulfides such as chalcopyrite...native Te, hessite and tetradymite; associated to chalcedony veins have also been identified (Figs. 2D-E;...filled with brecciated material, chalcedony and sulfides. Banded chalcedony, quartz and carbonate veins with...pyrrhotite, argentite, hematite, and goethite, in chalcedony veins (Fig. 3). Two types of calcite have been |
|
