 | | Journal (article/letter/editorial) | | The BuckhornMountain (Crown Jewel) Gold SkarnDeposit, OkanoganCounty, Washington ROBERTJ. HICKEY III Departmentof...BuckhornMountainis relatedto the Cretaceous (?) Buckhorn Mountainpluton(dioriteto granodiorite) anditsassociated...averagingHd•l, and the garnetis intermediategranditc(Ad36_75). Retrogradeepidote,calcite,amphibole,and zoisiteare...moregarnet-magnetite rich assemblage, whereasthe argillaceous and siliceouslayersalteredto a pyroxenedominantassemblage...argillic, albitization,and completealterationto garnet-epidote-pyroxene skarn. Gold mineralizationis spatiallyassociated |  | | Journal (article/letter/editorial) | | manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published...may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain...Ann Maest1 and D. Kirk Nordstrom2 1 Buka Environmental, 941 8th Street, Boulder, CO 80302, USA. 303-324-6948...Geological Survey, 3215 Marine St., Boulder, CO 80303, USA. 303-541-3037, dkn@usgs.gov Abstract SC Humidity...chemical data points. The HCT concentration peaks and valleys TE D can be thought of as a “chromatogram” |  | | Report (issue) | | NATURAL RESOURCES GEOLOGY AND EARTH RESOURCES DIVISION OLYMPIA, WASHiNGTON 98504 METAL MINES OF WASHINGTONPRELIMINARY...DERKEY NANCY L. JOSEPH and RAYMOND LASMANIS WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN FILE...Division of Geology and Earth Resources standards and nomenclature. 1, WASHINGTON STATE DEPARTMENT OF...Lands Art Stearns - Supervisor Division of Geology and Earth Resources Raymond Lasmanis. State Geologist...DERKEY NANCY L. JOSEPH and RAYMOND LASMANIS WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN FILE |  | | Journal (article/letter/editorial) | | Arizona: District-Scale Reconstruction with an Arc-Scale Context Phillip A. Nickerson†,* and Eric Seedorff...alteration, rock types, and structures to provide a district-scale cross section and associated palinspastic...systems at Sheep Mountain and Copper Basin (Crown King). Extension at the district scale is placed in...context using an original compilation of strike and dip measurements on Tertiary rocks to reconstruct...Dips of all normal faults initiated at 60° to 70° and rotated during slip to angles as gentle as 20°. A |  | | Report (issue) | | GEOLOGY AND MINERAL DEPOSITS OF THE GALLINAS MOUNTAINS, LINCOLN AND TORRANCE COUNTIES, NEW MEXICO; PRELIMINARY...Mexico Bureau of Geology and Mineral Resources New Mexico Institute of Mining and Technology Socorro, NM...is preliminary and has not been reviewed according to New Mexico Bureau of Geology and Mineral Resources...content of this report should not be considered final and is subject to revision based upon new information...data are historical data and are provided for information purposes only and does not reflect Canadian |  | | Journal (article/letter/editorial) | | 96, 2001, pp. 1827–1853 Miocene and Early Pliocene Epithermal Gold-Silver Deposits in the Northern Great...Western United States: Characteristics, Distribution, and Relationship to Magmatism DAVID A. JOHN† U.S. Geological...California 94025 Abstract Numerous important Miocene and early Pliocene epithermal Au-Ag deposits are present...are spatially and temporally related to two magmatic assemblages: bimodal basaltrhyolite and western andesite...of magma generation. The bimodal assemblage is a K-rich tholeiitic series formed during continental rifting |  | | Journal (article/letter/editorial) | | geochemistry, and origin of volcanic rock-hosted uranium deposits in northwestern Nevada and southeastern...southeastern Oregon, USA Stephen B. Castor ) , Christopher D. Henry NeÕada Bureau of Mines and Geology, UniÕersity...89557, USA Received 14 June 1999; accepted 24 September 1999 Abstract Northwestern Nevada and southeastern...adjacent to calderas or rhyolite lava-dome fields and are hydrothermal. Almost all are associated with...are hosted by peralkaline rocks in the McDermitt and Virgin Valley calderas. At McDermitt, major deposits |  | | Report (issue) | | Vulture-Hieroglyphic Mountains area, and Mystic, Clemontine, Newsboy, and Yarnell gold deposits, Central Arizona...Arizona Geological Society Field Trip December 8 and 9, 1990 Arizona Geological Society P.O. Box 40952...(part): Stephen J. Reynolds Geologic highlights and route of the December 1990 Arizona Geological Society...central Arizona: Capps and others (from ABGMT OFR 86-10) Geologic map of Quaternary and Upper Tertiary alluvium...Arizona: Wahl and others (from ABGMT OFR 88-1) Gold mineralization at the Mystic mine, Maricopa County, Arizona: |  | Clark Maroun, Lindsey R., Cline, Jean S., Simon, Adam, Anderson, Page, Muntean, John (2017) High-Grade Gold Deposition and Collapse Breccia Formation, Cortez Hills Carlin-Type Gold Deposit, Nevada, USA. Economic Geology, 112 (4) 707-740 doi:10.2113/econgeo.112.4.707 | Journal (article/letter/editorial) | | High-Grade Gold Deposition and Collapse Breccia Formation, Cortez Hills Carlin-Type Gold Deposit, Nevada...Nevada, USA Lindsey R. Clark Maroun,1,2 Jean S. Cline,1,† Adam Simon,3 Page Anderson,4 and John Muntean5...River Run Blvd., Bakersfield, California 93311 and Environmental Sciences, University of Michigan, Ann...Nevada Gold Exploration Incorporated, 293 Spruce Road, Elko, Nevada 89801 Bureau of Mines and Geology...breccia zone, a Nevada Carlin-type gold deposit located in the Cortez district on the Battle Mountain-Eureka |  | | Journal (article/letter/editorial) | | Sinter-Vein Correlations at Buckskin Mountain, National District, Humboldt County, Nevada PETER G. VIKRE† U.S...Sciences and Engineering, University of Nevada, Reno, Reno, Nevada 89557 Abstract At Buckskin Mountain (elev...(elev 2,650 m, 8,743 ft), Humboldt County, Nevada, a hydrothermal system, imposed on a middle Miocene volcanic...volcanic sequence with contrasting permeabilities and tensile strengths, produced alteration assemblages...over a vertical distance exceeding 790 m. Sinter and epiclastic deposits, interpreted to be remnant paleosurface |  | Spry, P. G., Foster, F., Truckle, J. S., Chadwick, T. H. (1997) The mineralogy of the Golden Sunlight gold-silver telluride deposit, Whitehall, Montana, U.S.A. Mineralogy and Petrology, 59 (3) 143-164 doi:10.1007/bf01161857 | Journal (article/letter/editorial) | | Mineralogy and Petrology (1997) 59:143-164 Mineralogy P l ology © Springer-Verlag 1997 Printed in Austria...Austria The mineralogy of the Golden Sunlight gold-silver telluride deposit, Whitehall, Montana, U.S...Foster 2, J. S. Truckle 2, and T. H. C h a d w i c k 3 1Department of Geological and Atmospheric Sciences,...September 11, 1996 Summary The Golden Sunlight gold-silver telluride deposit, hosted primarily within...metal veins and manganese (rhodochrosite) mineralization occur up to 2 km from the MHBP and form part of |  | 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) | | 425–463 Geologic Setting and Genesis of the Mule Canyon Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central...88065 AND ERIC C. SADERHOLM * Newmont Gold Company, Yanacocha, Peru Abstract The Mule Canyon mine exploited...of the Northern Nevada rift in northern Lander County, Nevada. Mule Canyon consists of six small deposits...magmatism. Hydrothermal alteration and Au-Ag ores formed at about 15.6 Ma and were tightly controlled by north-northwest-...high-angle fault and breccia zones developed during rifting, emplacement of mafic dikes, and eruption of mafic |  | | Report (issue) | | ROCKS AND MINERALS FOR THE COLLECTOR Geological Survey of Canada Miscellaneous Report 48 Ottawa to North...North Bay and Huntsville, Ontario; Gatineau (Hull) to Waltham and Témiscaming, Quebec Ann P. Sabina...Miscellaneous Report 48 ROCKS AND MINERALS FOR THE COLLECTOR: Ottawa to North Bay and Huntsville, Ontario; Gatineau...Gatineau (Hull) to Waltham and Témiscaming, Quebec Ann P. Sabina 2007 ©Her Majesty the Queen in Right...Pendant: almandine garnet cabochon set in silver. Cut and set by Jim Robertson, New Liskeard, Ontario. The |  | | Report (volume) | | Gold-Bearing Skarns U.S. GEOLOGICAL SURVEY BULLETIN 1930 AVAILABILITY OF BOOKS AND MAPS OF THE U.S...year are listed in the most recent annual "Price and Availability List" Publications that are listed in...but not listed in the most recent annual "Price and Availability List" are no longer available. Prices...microfiche from the U.S. Geological Survey, Books and Open-File Reports Section, Federal Center, Box 25425...Volcanoes, Preliminary Determination of Epicenters, and some miscellaneous reports, including some of the |  | | Report (issue) | | LAKES 15' QUADRANGLE, FERRY COUNTY, WASHINGTON by Kenneth F. Fox, Jr. , and George E. Becraft U.S. Geological...Open-File Report 93-715 This report is preliminary and has not been reviewed for conformity with U.S. Geological... or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government... Tto TERTIARY Ttp 1 T»-» ~l ~ ^~. CRETACEOUS AND/OR JURASSIC Ocuu Ocul Ocuq Ocug ORDOVICIAN >...Tckm, Tts, Ttq, Ttm, Tto, and Ttp, refers to age of penetrative dynamic and thermal metamorphism. Protolith |  | | Report (issue) | | MEXICO INSTITUTE OF MINING & TECHNOLOGY Mineral Deposits of Western Grant County, New Mexico by Elliot...Elliot Gillerman NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY KENNETH W. FoRD, President NEW MEXICO BUREAU...PATRICIA E. CANDELARIA, Secretary JAMES M. ROBERTSON, Mining Geologist RoNALD J. RoMAN, Chief Research Metallurgist.... . . . . . . . . . . . . . . . . . 2 Purpose and scope . . . . . . . . . . . . . . . . . . . . . ...Topography and drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Climate and vegetation |  | | Journal (article/letter/editorial) | | Alps, Italy) P. NIMIS1,*, L. DALLA COSTA2 1 2 3 AND A. GUASTONI3 Dipartimento di Geoscienze, Università...from the iron skarns of the Traversella magnetite mine (Western Alps, Italy) was studied by reflected-light...reflected-light microscopy, scanning electron microscopy and electron microprobe analysis. Cobaltite is found in...magnetite masses, where it forms disseminations and metasomatic veinlets that postdate the formation... pyrrhotite and/or pyrite, chalcopyrite, carbonates, talc, chlorite and native gold, and is indicative |  | | Journal (issue) | | 92631 Open Mon.-Sat. 10-5 .) j photo bv Harold and Erica Van Pelt, Los Angeles • Note our m ailing addressn...of Victoria Melbourne, Australia Pete J. Dunn Washington, DC Peter G. Embrey London, England Richard C...Germany Eric Offermann Arlesheim, Switzerland Harold and Erica Van Pelt Los Angeles, CA Julius Weber Mamaroneck...circulation manager for rates.) • Libraries, Companies and institutions (worldwide): $50 for one year. (First-class...postage (USPS-887-700) Paid at Tucson, Arizona, and additional offices. POSTMASTER: send address changes |  | | Journal (article/letter/editorial) | | brecciatypesin which fragments maysuffercollapse and/orascent.Singleor multipleintrusion-related brecciapipes...only in Cornwall,England;Hunt, 1887, p. 421-422), and areassociated withoredeposits. in 1896, Emmonsprovidedan...generallyappreciatedby the early 20th century, as and possibleoriginsof six categoriesof ore-related evidencedby...4852.50 1467 1468 RICHARD H. SILLITOE ting and have provided most of the examplesde- the case of...processreliablyfrom observedgeometric,lithologic,and texturalcharacteristics.Existingclassification schemes |  | | Journal (article/letter/editorial) | | Mineralogy and Petrology (1998) 64:119-147 Mineralogy an(1 Petrology © Springer-Verlag 1998 Printed...Carpathians, Slovakia P. Kod6ra 1,2, A. H. Rankin 2, and J. Lexa l 1Geological Survey of the Slovak Republic...emplacement of a large granodiorite pluton in the central zone of a Neogene stratovolcano. Skarn mineralisation...composition, involving the replacement of marie minerals and a concomitant decrease in Fe-content. Ca-magnetite...NaC1 eq., composed of NaCI+FeC12+CaC12+ KCI+MgC12) and Th (220-370°C), independent of the garnet types, |  | | Report (issue) | | preliminary and has not been reviewed for conformity with U.S. Geological Survey standards and stratigraphic....................................... EpIthermal gold deposits..........................................Au................................. Hot spring Hg and hot spring Au-Ag........................... Skarn...................................... Iron skarns and volcanic-hosted magnetite.................... Polyraetallic...27 32 Illustrations Figure 1. Location map of mining districts in the Reno 1° x 2° quadrangle, Nevada |  | | Journal (article/letter/editorial) | | pp. 31±42 The distribution and recovery of gold in the Golden Sunlight gold-silver telluride deposit,...Montana, U.S.A. P. G. SPRY AND S. E. THIEBEN Department of Geological and Atmospheric Sciences, 253 Science...State University, Ames, Iowa 500113212, USA ABSTR ACT The gold balance in an ore deposit where the ore...the `visible gold' that is amenable to cyanidation and `visible gold' and the `invisible gold', which are...to cyanidation. Petrographic analyses, electron and ion microprobe as well as scanning electron microscope |  | Klepper, Montis Ruhl, Ruppel, E.T., Freeman, V.L., Weeks, R.A. (1971) Geology and mineral deposits, east flank of the Elkhorn Mountains, Broadwater County, Montana. Professional Paper 665. US Geological Survey doi:10.3133/pp665 | Report (issue) | | Geology and Mineral Deposits, East Flank of the Elkhorn Mountains, Broadwater County, Montana GEOLOGICAL...665 Geology and Mineral Deposits, East Flank of the Elkhorn Mountains, Broadwater County, Montana By...By M. R. KLEPPER, E. T. RUPPEL, V. L. FREEMAN, and R. A. WEEKS GEOLOGICAL SURVEY PROFESSIONA~·L PAPER...descriptive report of the geology, mineral deposits, and mines in an area east of the Boulder batholith l...' UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1971 .A UNITED STATES DEPARTMENT OF THE INTERIOR |  | | Book (edition) | | photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...Collection, photo by Jeff Scovil Designed and typeset by Sara Thaxton in 10.5/15 Warnock Pro with Interstate Condensed...Mineralogy of Arizona/ Raymond W. Grant [and 4 others] ; maps and illustrations by John Callahan. Description:...Press, 2022. I Includes bibliographical references and index. Identifiers: LCC:N2021041195 I ISBN 9780816543588...the memory of John W. Anthony, Sidney A. Williams, and Richard A. Bideaux What is presented here would not |  | | Report (issue) | | STUDIES OF THE ROCKY MOUNTAIN AND ADJACENT STATES By ELIZABETH B. TOURTELOT and ALLEN L. MEIER Open-File...1976 LIBRARY OEC221976 This report is preliminary and has not been edited or reviewed for conformity with...STUDIES OF THE ROCKY MOUNTAIN AND ADJACENT STATES by Elizabeth B. Tourtelot and Alien L. Meier Samples...collected throughout the Rocky Mountain States and in Arkansas, Nebraska, and Texas to determine the general...distribution of lithium and to study the geochemical relationships of lithium with mineralogy and with other elements |
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