 | | Report (issue) | | IN THE TRIASSIC-JURASSIC MAGMATIC ARC OF WESTERN NEVADA AND EASTERN CALIFORNIA by David A. John1 , Richard...California ^Mackay School of Mines, University of Nevada, Reno, Nevada Introduction This paper is a chapter...the Triassic and Jurassic magmatic arc of western Nevada and eastern California. A summary of the report...focus of this study is an irregular area in western Nevada and eastern California centered at the latitude...northern Wassuk Range, (2) latest Early Jurassic in the Pine Grove Hills-Wassuk Range-Gillis Range, (3) Middle |  | | Report (volume) | | Mineral Resources of the Reno 1 o by 2° Quadrangle, Nevada and California U.S. GEOLOGICAL SURVEY BULLETIN...Mineral Resources of the Reno 1 o by 2° Quadrangle, Nevada and California By DAVID A. JOHN, JOHN H. STEWART...mineral resources of the Reno 1o by 2° quadrangle, Nevada and California I by David A. John ... [et al.]...resources-Nevada-Reno Region. 2. Mines and mineral resources-California. 3. Geology-Nevada-Reno Region...cultural features in the Reno 1o by 2° quadrangle, Nevada and California 3 2. Map showing areas of shallow |  | | Report (issue) | | Trip 3: Great"Basin Porphyry Cu-Mo Deposits: Yerington, Robinson, Hall, Bingham Canyon October, 1994...of the Arizona Geological society, society for Mining, Metallurgy and Exploration Inc., and the U. s...We also want to thank collectively, all of the mining companies and staff who graciously allowed us to...ALONG THE 1-80 CORRIDOR, RENO TO BATTLE MOUNTAIN, NEVADA R. Cuffney, R. Atkinson and R. Buffa Revised 1990...north-south ranges of central and northeastern Nevada (Fig. I). These belts, or their extensions, contain |  | | Report (issue) | | 114 GEOLOGY AND ORE DE_POSITS OF THE YERINGTON DIST_RICT, NEVADA BY • ADOLPH KNOPF WASHINGTON GOVERNMENT.................................. . . History of mining .......................... . Production .........geology-Continued. 9 Epitome of the. geologic history of the 9 district .....•......................... 9 Part II. The........ . 20 Bluestone :mine ................ ·........ . 2'0 Mason Valley mine ............................. . 21 _ Malachite mine ............ .' .......... ·.. . 22 McConnell mine ........ : ........... |  | | Report (issue) | | MINERAL DEPOSITS OF THE RENO 1° x 2° QUADRANGLE, NEVADA, with a comprehensive bibliography by Gary R...Figure 1. Location map of mining districts in the Reno 1° x 2° quadrangle, Nevada..........................Known production from mining districts in the Reno 1° x 2° quadrangle, Nevada..........................of mineral deposits in mining districts of the Reno 1° x 2° quadrangle, Nevada..........................prospects, and claims in the Reno 1° x 2° quadrangle, Nevada.......................................... 19 21 |  | | Report (issue) | | in Progress for the Reno 1° x 2° CUSMAP Project, Nevada, with additional bibliography by Gary B. Sidder...GEOPHYSICS ADDITIONAL STUDIES ADDITIONAL INFORMATION FOR MINING DISTRICTS Shady Run (Fondaway Canyon) Broken Hills...information to Sidder (1986) on deposit types and mining districts in the Reno quadrangle and additional...quadrangles. He is correlating tuff units in the Singatse Range with tuffs in different parts of his map area...Menlo Park) has mapped in the southern Stillwater Range primarily on the La Plata Canyon, Table Mountain |  | Dilles, J. H., Kent, A. J. R., Wooden, J. L., Tosdal, R. M., Koleszar, A., Lee, R. G., Farmer, L. P. (2015) ZIRCON COMPOSITIONAL EVIDENCE FOR SULFUR-DEGASSING FROM ORE-FORMING ARC MAGMAS. Economic Geology, 110 (1) 241-251 doi:10.2113/econgeo.110.1.241 | Journal (article/letter/editorial) | | 2008, 2013; Longo et al., 2010 Yerington, Nevada >70 NNO+2 I >0.07 7 1,000 6 8 Dilles, 1987;...Yanacocha and El Salvador from references; Yerington district based on a) alteration volumes from Ann-Mason...~ 20 Bt @ 1.5% S, b) same amount of S from Yerington mine, Bear, and MacArthur deposits; and c) 100 Mt...zircon REE patterns of samples from the Yerington batholith, Nevada, including the early nonmineralized McLeod...study likely crystallized in the limited pressure range observed for porphyry copper granitoids (1−3 kbars |  | | Journal (article/letter/editorial) | | Abstract The JurassicYerington batholith, western Nevada, is a compositepluton that contains severalcentersof... and oxyrologic and geochemical study of the Yerington gen isotope composition (8). batholith in the...million tons Cu district are a 1,300-m sequence of Middle(?) or (Einaudi, 1982). The Yerington districtis...co- ARC TSRRANE geneticvolcanics, asshownby district-scale studies (Proffettand Dilles, 1984, and unpub...unpub. data), are + 38 ø ,. ,..,,, YERINGTON ^'" '",2.• BATHOLITH •^^";"';PO ^ •169-'68 Mo A 120 |  | | Report (issue) | | STATE OF NEVADA Open-file Report 79-235 1979 Prepared by the U.S. Geological Survey for the Nevada Operations...SURVEY INVENTORY OF GRANITIC MASSES IN THE STATE OF NEVADA Compiled by Richard W. Spengler, Florian Maldonado...-----------------------------------------Clark County-----------------------------------------------...---------------------------------------Lincoln County-----------------------------------------------...----------------------------------Southern Nye County----------------------------------------------- |  | | Journal (issue) | | MINING CONGRESS JOURNAL JUNE 1963 “An Open Letter on Stockpiling” by Edward A. McDermott, Director... © HUNTINGTON 10,W. VA. « ST. PAUL 1, MINN. MINING CONGRESS JOURNAL VOL. 49 JUNE CONTENTS PUBLISHER...Patrick D. McMurrer in Trona 44 Blasting 48 Mining Open Pit Slope Stability Research by the Bureau...Long 68 Drilling Practices in the Coeur d'Alene District 72 Maintenance 76 Peter Boyko and G. A. Strand...ANNOUNCEMENTS Los Angeles Mining Convention SPECIAL Report, THE AMERICAN MINING CONGRESS Ring Bldg., Washington |  | | Journal (article/letter/editorial) | | vein complex: Lightning creek prospect, Cloncurry district, Northwest Queensland C.S. Perring, P.J. Pollard...(Hildebrand, 1986); the 160 Ma Humboldt lopolith, Nevada (Vanko and Bishop, 1982); the 100 Ma intrusions...the 21.8 Ma intrusions of the Iron Springs district, Utah, USA (Barker, 1995). The Eastern fold belt of...composed of I-type, magnetite-series granitoids which range in composition from diorite to alkali-feldspar granite...major Fe-oxide Cu–Au deposits of the Cloncurry district. The Lightning creek prospect is located in the |  | Mutch, E. J. F., Blundy, J. D., Tattitch, B. C., Cooper, F. J., Brooker, R. A. (2016) An experimental study of amphibole stability in low-pressure granitic magmas and a revised Al-in-hornblende geobarometer. Contributions to Mineralogy and Petrology, 171 (10) doi:10.1007/s00410-016-1298-9 | Journal (article/letter/editorial) | | Technology, 1200 E. California Blvd, Pasadena, CA 91125, USA 3 Department of Earth Sciences, University of Cambridge...porphyry stocks occupying the shallow limit of this range (≤4 km). However, providing an accurate quantitative...amphibole thermobarometer that is applicable to a wide range of igneous systems has been fraught with challenges...a variety of starting materials in the pressure range 1.3–22 kbar to formulate a barometer. Their formulation...linearly with pressure within the calibrated pressure range of 2–14 kbar (Table 1). The three experimental calibrations |  | | Report (issue) | | in the northern Pine Nut Mountains, west-central Nevada by David A. John1 Open-File Report 92-246 This...in the northern Pine Nut Mountains, west-central Nevada Abstract This paper reports 100 new major and trace...the Walker Lake 1° by 2° quadrangle, west-central Nevada. The samples were collected during the Reno quadrangle...2° quadrangle, Nevada and California, and of an irregular area in west-central Nevada and eastern California...of early Mesozoic arc magmatism in the Yerington district, Nevada, and its regional implications: Geological |  | | Journal (article/letter/editorial) | | Ottawa, Ontario K1N 6N5, Canada 2Taseko Gibraltar Mining Offices, 10251 Gibraltar Road, McLeese Lake, British...disseminated chalcopyrite. Zircon in the Cu-bearing tonalite intrusion (218.9 ± 3.1 Ma) shows high Ce4+/Ce3+...overlapping for the two. The bulk rocks of Cu-bearing tonalite intrusions in the Granite Mountain batholith have...Examples include the Yerington porphyry Cu deposit in the Yerington batholith, Nevada, USA (Dilles, 1987),...northwestern section of the Bingham Canyon deposit, USA, may also overlie a large magma chamber that fed |  | Groves, D. I., Bierlein, F. P., Meinert, L. D., Hitzman, M. W. (2010) Iron Oxide Copper-Gold (IOCG) Deposits through Earth History: Implications for Origin, Lithospheric Setting, and Distinction from Other Epigenetic Iron Oxide Deposits. Economic Geology, 105 (3) 641-654 doi:10.2113/gsecongeo.105.3.641 | Journal (article/letter/editorial) | | Introduction THE DISCOVERY in 1975 by Western Mining Corporation of the giant Olympic Dam breccia-hosted...settings (e.g., Kerrich et al., 2005), regional to district-scale geologic environments, igneous or basinal...defined, IOCG deposits represent a rather wide range of loosely related deposits that share a number...characteristics (Haynes, 2000; Sillitoe, 2003). The extreme range of inferred tectonic settings for IOCG deposits...particular concern. In addition, the extremely wide range of alteration styles ascribed to IOCG deposits appears |  | | Journal (article/letter/editorial) | | of Rock-Forming Minerals in Copper–Gold-Bearing Tonalite Porphyries at the Batu Hijau Deposit, Sumbawa...related to the emplacement of multiple stages of tonalite porphyries. Petrographic examination indicates...that at least two texturally distinct types of tonalite porphyries are currently recognized in the deposit...which are designated as “intermediate tonalite” and “young tonalite”. They are mineralogically identical...hornblende, biotite, magnetite and ilmenite in the tonalite porphyries was systematically analyzed by electron |  | | Journal (article/letter/editorial) | | Copper-gold endoskarns and high-Mg monzodiorite– tonalite intrusions at Mt. Shea, Kalgoorlie, Australia:...richer in gold (1.5–4.5 g/t). At the Hannan South mine, the skarns consist of epidote, calcite, chlorite...and quartz–plagioclase tonalite porphyry. The intrusions display a wide range in silica content (53–...occurrence of porphyry dikes and stocks in all of these mining districts has prompted speculation about the genetic...in 1985 to 1987 in the Mt. Charlotte mine, the Paringa South mine (Golden Mile), and the Hunt and Victory-Defiance |  | | Report (volume) | | Index of Granitic Rock Masses in the State of Nevada By FLORIAN MALDONADO, RICHARD W. SPENGLER, W.F....on 205 areas of exposed granitic rock masses in Nevada U.S. GEOLOGICAL SURVEY BULLETIN 1831 DEPARTMENT...Data Index of granitic rock masses in the state of Nevada. (U.S. Geological Survey bulletin ; 1831) Bibliography:...Docs. no.: I 19.3:1831 1. Granite-Nevada. 2. Intrusions (Geology) -Nevada. I. Maldonado, Florian. II. United...Clark County 9 Geology 9 Plutons 9 Lincoln County 1S Geology 1S Plutons 1S Southern Nye County 17 Geology |  | | Report (chapter) | | Älgträsk intrusive hosted Au deposit, Skellefte district, northern Sweden, is situated in the oldest, most...does not appear to be genetically related to the tonalite or the porphyry dykes. The mineralization in...(Volcanogenic massive sulphide) deposits in the Skellefte district south –SW of Älgträsk (Fig. 1) have been thoroughly...showing mingling relationships with gabbro and tonalite. The area is also crosscut by mafic dykes and... 1). It has been suggested that the Skellefte district constitutes the remnants of an ancient volcanic |  | | Report (volume) | | 6. Thickness.--In meters at the type section. A range is given if stated. 7. Distinctive features, texture... and sand 5. Light-brown, dark-gray 6. 0.35 m, range 0.1-0.5 m 7. Charcoal and red baked zones caused... 147 N., R. 84 W., 4 km N of Riverdale, McLean County, N. Oak. Named for Aggie Brown Coulee, which flows...paleosols 5. Yellowish-brown to dark-gray 6. 10 m, range <1-76 m 7. Loam-textured till high in expandable...NW1/4NW1/4SW1/4SW1/4 sec. 17, T. 85 N., R. 7 W., Linn County, Iowa. A-L Peak Rhyolite Oligocene 1. New Mexico |  | | Report (issue) | | example, Christmas, Arizona, and Battle Mountain, Nevada), more copper is recovered from calc-silicate rocks...which will vary with the price of copper and local mining costs. At Dos Pobres, Arizona, from the top of...the date of a study, considering the extent of mining at that date. At Batu Hijau, Indonesia, Arif and...Fluid-Inclusion Thermometry and Geochemistry A wide range of fluid-inclusion homogenization temperatures has...the median reported homogenization temperature range in the El Teniente data is 380°–390°C. At Bajo de |  | | Journal (article/letter/editorial) | | many different sizes and shapes and are found in a range of environments. Each Au-bearing deposit type is...of Geosciences, Oregon State University OR 97370, USA 3 Australian Research Council Centre of Excellence...kilometres (Dilles et al. 2000). These ground waters range from dilute meteoric waters – which may produce...concentrated at the top of the magma chamber contains a range of watersoluble volatile components, such as Cl...associated with low-K calc-alkaline diorite to tonalite, high-K calc-alkaline quartz monzonite, and alkaline |  | | Journal (article/letter/editorial) | | from this heritage, such as those in the Sierra Nevada batholith which originated with Paul Bateman's...magmatic belts of various ages; the best mineralised range from Jurassic to Miocene in age. The oldest crust...Palaeozoic terranes of northern California and Nevada and the early Mesozoic Guerrero terrane of western...Locations 4. ...', , Baste; t ColoradoN«w Mexico tonalite granodiorite ;Qz) monzodiorite I z monzonite /...exposed from northern California and northwestern Nevada through southern Mexico (Fig. 4A, Miller et al |  | | Journal (article/letter/editorial) | | Haruhisa MOROZUMI Technology Research Center, Metal Mining Agency of Japan, Furudate 9-3, Kosaka Kouzan, Kosaka...quartz monzonite chlorite-sericite Erdenet complex tonalite chlorite-sericite Erdenet complex granodiorite...313 granite granite altered granitoid tonalite porphyry tonalite porphyry altered granitoid Erdenet complex...to 5,670 ppm. The Cu (ppm) TiO2 content is in a range from 0.25 to 0.57 wt% (b) for the samples of less...is obviously owing shows 4.85 wt%, in the same range as Cu-poor samples, to the residual albite against |  | | Report (volume) | | that lies between the Park City and Cottonwood mining districts in the central Wasatch Mountains, Utah...central Wasatch Mountains (Park City and Cottonwood mining districts) formed significant precious- and base-metal...simplified from Hintze (1980). Abbreviations: 8, Bingham mine; CN, Charleston-Nebo thrust fault; DC, Deer Creek...present exposures of the Alta stock were estimated to range from about 6.3 km on the west to about 3.7 km on...Plagioclase crystals along the margins of type 1 veins range from unaltered to partially replaced and overgrown |
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