 | | Journal (article/letter/editorial) | | Post-Eocene Extension in the Northern Shoshone Range, Nevada, and Its Implications for the Structural Setting...80225 2 Nevada Bureau of Mines and Geology, Mail Stop 178, University of Nevada, Reno, Nevada 89557 3...northern Shoshone and Toiyabe Ranges in north-central Nevada expose numerous areas of mineralized Paleozoic...major Carlin-type gold deposits at Pipeline and Cortez. Paleozoic rocks in these areas were previously...Ma densely welded dacitic ash flow tuff (informally named the tuff of Mount Lewis) interbedded with sandstones |  | | Report (volume) | | Gold in Jasperoid, Elephant Head Area, Lander County, Nevada U.S. GEOLOGICAL SURVEY BULLETIN 2009 Geochemistry...Gold in Jasperoid, Elephant Head Area, Lander County, Nevada By TED G. THEODORE and GAIL M. JONES U...gold in jasperoid, Elephant Head area, Lander County, Nevada I Ted G. Theodore and Gail M. Jones. p....ores-Geology-Nevada-Lander County. 2. JasperoidNevada-Lander County. 3. Geochemistry-Nevada-Lander County. I....Geologic map of the Elephant Head area, Lander County, Nevada In pocket FIGURES 1. 2. 3. 4. 5. 6. 7 |  | | Report (volume) | | Geology of the Cortez Quadrangle Nevada By JAMES GILLULY and HAROLD MASURSKY With a section on Gravity...BULLETIN 1175 Prepared in cooperation with the Nevada State Bureau of Mines The area includes a thick..._____-_______---_--_-_Geologic interest of the Cortez quadrangle.____--___-.__--__--__-Location and ...-__-_-__._.___-. Quartz monzonite of the Mill Canyon stock___--___-__-_____ Quartz porphyry and augite...-___--_-_____-__ Caetano Tuff. ____-__-_.--__---_--____---__-_--.-_____-___ Quartz porphyry dikes___ |  | | Report (issue) | | Oligocene Age At Mount Lewis, Northern Shoshone Range, Nevada GEOLOGICAL SURVEY PROFESSIONAL PAPER 876 Cauldron...Oligocene Age At Mount Lewis, Northern Shoshone Range, Nevada By CHESTER T. WRUCKE and MILES L. SILBERMAN GEOLOGICAL...Oligocene age at Mount Lewis, northern Shoshone Range, Nevada (Geological Survey Professional Paper 876) Bibliography:...19-20. Supt. of Docs. No.: I 19.16:876 1. Volcanism-Nevada-Shoshone Mountains. 2. Subsidences(Earth movements)-Shoshone...-------------------------------------Intrusive quartz latite breccia of Gilluly and Gates ______ Dikes |  | | Report (issue) | | Prepared in cooperation with the Nevada Bureau of Mines and Geology Eruptive History, Geochronology...Late Eocene Hall Creek Caldera, Toiyabe Range, Nevada Professional Paper 1832 U.S. Department of the...Survey Cover. View east of thick intracaldera tuff of Hall Creek filling the southern part of the Hall...Toiyabe Range. White color and orange staining of tuff in foreground are from post-eruption hydrothermal...Range, Nevada By Joseph P. Colgan and Christopher D. Henry Prepared in cooperation with the Nevada Bureau |  | | Report (issue) | | Geologic Map of the Galena Canyon Quadrangle, Lander County, Nevada by JeffL.Doebrich1 Open-File Report 94-664... Prepared in cooperation with Santa Fe Pacific Mining Inc. under Cooperative Research and Development...MS-176, Mackay School of Mines, University of Nevada, Reno, Nevada, 89557-0047 DESCRIPTION OF MAP UNITS Qd...(Holocene) Present around active and abandoned mining operations in the Copper Canyon, Iron Canyon, an...McKee, oral commun., 1993; Doebrich, 1995). Caetano Tuff (Oligocene) Exposed as cliff-forming unit in |  | | Journal (article/letter/editorial) | | 526-537 Geologyand Geochemistry of the Cortez Gold Deposit, Nevada John D. WmJ.s, L•.•. R. STO•SER, ^NDJ^M•...Abstract Gold has been discoveredrecently at Cortez, Nevada, about 45 miles southwestof Carlin in carbonate...zone envelopsa 34-m.y.-oldintrusivebodyof biotite-quartz-sanidine porphyry,which is also altered. No ge...betweenoriginal silt grains and to a lesserextent in quartz-filled microfracturesand hematite-goethitepseudomorphs...anomalyknownin the area. Other gold depositsin north-central Nevada are associated with such anomalies. Contents PAGE |  | | Report (issue) | | the Antler Peak 7.5 Minute Quadrangle, Lander County, Nevada by Jeff L. Doebrich1 Open-File Report 92-398...92-398 Prepared in cooperation with the Nevada Bureau of Mines and Geology This report is preliminary...Field Office, Mackay School of Mines, University of Nevada, Reno, Reno, NV 89557 1992 DESCRIPTION OF MAP...Most abundant on hill slopes below outcrops of Caetano tuff (Tc) Qoa Older alluvium (Quaternary) silty...alluvium Tt Tuff (Tertiary) very light gray, nonwelded crystal-lithic ash-flow tuff. Contains quartz phenocryts |  | | Report (issue) | | Fish Creek Mountains Tuff And Volcanic Center, Lander County, Nevada GEOLOGICAL SURVEY PROFESSIONAL...681 Fish Creek Mountains Tuff And Volcanic Center, Lander County, Nevada By EDWIN H. McKEE GEOLOGICAL...its source in the Fish Creek Mountains of central Nevada UNITED STATES GOVERNMENT PRINTING OFFICE, W ASH...the Fish Creek Mountains Tuff ... Rocks older than Fish Creek Mountains Tuff ............ Rocks younger...younger than Fish Creek Mountains Tuff ...... Fish Creek Mountains Tuff ................................. |  | Theodore, T.G., Murchey, B.L., Hanger, R.A., Strong, E.E., Ashinhurst, R.T. (1994) To accompany the preliminary geologic map of the Snow Gulch Quadrangle, Humboldt and Lander counties, Nevada. Open-File Report Vol. 1994 (94-436) US Geological Survey doi:10.3133/ofr94436 | Report (issue) | | the Snow Gulch Quadrangle, Humboldt and Lander Counties, Nevada by Ted G. Theodore1 with a section on Radiolarians...Pennsylvanian and Permian Antler Peak Limestone, Lander County, Nevada by Rex Alan Hanger2 , Ellen E. Strong3 ...94-436 Prepared in cooperation with Santa Fe Pacific Mining Inc. under Cooperative Research and Development...older alluvium (Qoa) Caetano Tuff (OHgocene)--Pinkish-gray crystal lithic ash-flow tuff present as erosional...(recalculated from McKee and Silberman, 1970) Caetano Tuff of Gilluly and Masursky (1965). Crops out only |  | | Journal (article/letter/editorial) | | Relationship of the Cortez Caldera to the Cortez Disseminated Gold Deposit, Nevada JAMES J. RYTUBA, R...Road, M.S. 901, Menlo Park, CA 94025, U.S.A. The Cortez caldera is an oval structure ten km in diameter...Toiyabe Range, central Nevada. Collapse resulted from eruption of the Caetano Tuff about 32.5 m.y. ago,...with more than 2.5 km of Caetano Tuff. Interstratified with the intracaldera tuff are beds of collapse breccia...and Vinini Formation in a matrix of the ash-flow tuff. Trap door-type resurgence uplifted the central |  | | Report (issue) | | Porphyry Copper Deposit and Surrounding Area, Lander County, Nevada GEOLOGICAL ) SURVEY PROFESSIONAL PAPER...Porphyry Copper Deposit and Surrounding Area, Lander County, Nevada By TED G. THEODORE and DAVID W. BLAKE GEOCHEMISTRY...COPPER ENVIRONMENT IN THE BATTLE MOUNTAIN MINING DISTRICT, NEVADA GEOLOGICAL SURVEY PROFESSIONAL PAPER...Structural and stratigraphic features of the mining district Geology of the Copper Canyon area ...........··········--···························---· Caetano Tuff ·······-············-----··--·--··········· |  | | Report (volume) | | Reconnaissance of the Cortez-Buckhorn Area, x Southern Cortez Mountains, -v Nevada By JOHN D. WELLS and...distribution of silver, Cortez-Buckhorn area, Lander and Eureka Counties, Nevada. 2. Geochemical maps showing...arsenic, and antimony, Cortez-Buckhorn area, Lander and Eureka Counties, Nevada. 3. Geochemical maps showing...zinc, and molybdenum, Cortez-Buckhorn area, Lander and Eureka Counties, Nevada. Pago P3 FIGURE 1. Index...for selected metals in samples collected from the Cortez-Buckhorn area..__.___.__ 2. Range of values, median |  | Johnston, M. K., Thompson, T. B., Emmons, D. L., Jones, K. (2008) Geology of the Cove Mine, Lander County, Nevada, and a Genetic Model for the McCoy-Cove Hydrothermal System. Economic Geology, 103 (4) 759-782 doi:10.2113/gsecongeo.103.4.759 | Journal (article/letter/editorial) | | pp. 759–782 Geology of the Cove Mine, Lander County, Nevada, and a Genetic Model for the McCoy-Cove...Inc., 240 South Rock Boulevard, Suite 117, Reno, Nevada 89502 TOMMY B. THOMPSON, Ralph J. Roberts Center...Research in Economic Geology, University of Nevada, Reno, Nevada 89557 DAVID L. EMMONS, Round Mountain Gold...Mountain, Nevada 89045 AND KEITH JONES Small Mine Development, P.O. Box 251, Battle Mountain, Nevada 89820...northern Fish Creek Mountains, Lander County, Nevada. Through the end of mining in 2001, large-scale open-pit |  | | Report (issue) | | CONTRIBUTIONS TO THE GOLD METALLOGENY OF NORTHERN NEVADA Richard M. Tosdal editor Open-File Report 98-338-6...Contributions to the gold metallogeny of northern Nevada Preface R.M. Tbsdfl/.............................Regional crustal structure beneath the Carlin Trend, Nevada, based on deep electrical geophysical measurements...and its relation to gold belts in north-central Nevada: Overview and progress report V.J.S. Grawc/i.....autochthonous rocks that host gold along the Carlin trend, Nevada Augustus K. Armstrong, Ted G. Theodore, Robert |  | | Journal (article/letter/editorial) | | scanner was flown over the Gold Acres mining district, Nevada, as part of a joint NASA-Jet PropulsionLaboratory...fieldsamplesitesdiscussed in thetext. MSDS site 021, Lander County, Nevada. Data Acquisition TABLE 1. Multispect...GoldAcresminingdistrictin the easternShoshone Range,Nevada (NASA test site 4 021). The test site is approximately...œN•TH (microns) FIG. 4. Reflectancecurves of Caetano Tuff (field sample 1; iron-stained surface) and Valmy...green or black shale muscoviteschist (muscovite,quartz, biotite) may may have the sameappearanceon the |  | | Report (issue) | | Molybdenum Deposit and Surrounding Area, Lander County, Nevada U.S. GEOLOGICAL SURVEY PROFESSIONAL PA...MOLYBDENUM DEPOSIT AND SURROUNDING AREA, LANDER COUNTY, NEVADA FRONTISPIECE. Buckingham area. Group...Molybdenum Deposit and Surrounding Area, Lander County, Nevada By TED G. THEODORE, DAVID W. BlAKE, THOMAS...COPPER ENVIRONMENT IN THE BATTLE MOUNTAIN MINING DISTRICT, NEVADA U.S. GEOLOGICAL SURVEY PROFESSIONAL...molybdenum deposit and surrounding area, Lander County, Nevada I by Ted G. Theodore ... [et al.]. With |  | 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) | | Collapse Breccia Formation, Cortez Hills Carlin-Type Gold Deposit, Nevada, USA Lindsey R. Clark Maroun,1...Parkway, Box 454010, University of Nevada Las Vegas, Las Vegas, Nevada 89154 2 California 3 Earth Resources...48109 4 Barrick 5 Nevada Gold Exploration Incorporated, 293 Spruce Road, Elko, Nevada 89801 Bureau of...University of Nevada Reno, Reno, Nevada 89557 Abstract The Cortez Hills breccia zone, a Nevada Carlin-type...Carlin-type gold deposit located in the Cortez district on the Battle Mountain-Eureka trend, formed within a high-grade |  | Henry, C. D., Hinz, N. H., Faulds, J. E., Colgan, J. P., John, D. A., Brooks, E. R., Cassel, E. J., Garside, L. J., Davis, D. A., Castor, S. B. (2012) Eocene-Early Miocene paleotopography of the Sierra Nevada-Great Basin-Nevadaplano based on widespread ash-flow tuffs and paleovalleys. Geosphere, 8. 1-27 doi:10.1130/ges00727.1 | Journal (article/letter/editorial) | | Eocene−Early Miocene paleotopography of the Sierra Nevada−Great Basin− Nevadaplano based on widespread ash-flow...Sierra Nevada and Walker Lane themed issue Eocene–Early Miocene paleotopography of the Sierra Nevada–Great...Castor1 1 Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada 89557, USA U.S. Geological...California 94025, USA 3 California State University, Hayward, California 94542, USA 4 Department of Earth...Marshall College, Lancaster, Pennsylvania 17604, USA 2 ABSTRACT The distribution of Cenozoic ash-flow |  | | Report (issue) | | 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...vast majority of precious metal deposits found in Nevada to date. Our trip begins in the Walker Lane mineral |  | | Report (issue) | | Clark's Tertiary molluscan types from the Yakataga district, Gulf of Alaska, by W. 0. Addicott, Saburo Kanno...••••.•••...••...•....• · · • Clinoptilolite-bearing tuff beds in the Creede Formation, San Juan Mountains...Mineralogy Clay minerals, Longfellow mine, San Juan County, Colo., by R. G. Luedke and J. W. Hosterman .....granitoid rocks of the Mount Wheeler mine area, Nevada, by D. E. Lee, R. E. Mays, R. E. Van Loenen, and...rocks associated with ore deposits, Cortez-Buckhorn area, Nevada, by J. D. Wells, J, E. Elliott, and |  | 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...the west side of the Northern Nevada rift in northern Lander County, Nevada. Mule Canyon consists of six...Open-space filling ores include narrow stockwork quartz-adularia veins, banded and crustiform opaline and...nearly lithostatic pressures when some crystalline quartz ± adularia precipitated, but most ore formed at...e-mail, djohn@usgs.gov *Present address: Newmont Mining Corp., PO Box 388, Valmy, NV 89438. 0361-0128/01/3335/425-39 |  | | Report (issue) | | MANAGEMENT'S WINNEMUCCA DISTRICT AND SURPRISE RESOURCE AREA, NORTHWEST NEVADA AND NORTHEAST CALIFORNIA... MS 176, Mackay School of Mines, University of Nevada, Reno, Reno, NV 89557-0047 CONTENTS Introduction........................................ Northern Nevada Rift ............................................assessment of BLMadministered lands in northwest Nevada and northeast California. The project area is composed...(RAs), totalling 13.5 million acres, in northwest Nevada and northeast California (figs. 1, 2). The SonomaGerlach |  | | Journal (article/letter/editorial) | | Cover in Nevada: Examples from the Cortez Mine JOHN MUNTEAN1,† AND PAUL TAUFEN 2,* 1 Nevada Bureau of...of Mines and Geology, University of Nevada Reno, Reno, Nevada, 89557-0178 2 Consultant, Littleton, Colorado...completed over covered Carlin-type gold deposits in the Cortez mine area with the expressed aim of identifying...discover Au ore under transported alluvial cover in Nevada. Orientation tests were designed to assess the...and “footprints” associated with deposits at the district scale. Detailed surveys were completed over the |  | Watts, Kathryn E., Coble, Matthew A., Vazquez, Jorge A., Henry, Christopher D., Colgan, Joseph P., John, David A. (2016) Chemical abrasion-SIMS (CA-SIMS) U-Pb dating of zircon from the late Eocene Caetano caldera, Nevada. Chemical Geology, 439. 139-151 doi:10.1016/j.chemgeo.2016.06.013 | Journal (article/letter/editorial) | | dating of zircon from the late Eocene Caetano caldera, Nevada Kathryn E. Watts, Matthew A. Coble, Jorge...dating of zircon from the late Eocene Caetano caldera, Nevada, Chemical Geology (2016), doi: 10.1016/j...dating of zircon from PT the late Eocene Caetano caldera, Nevada RI Kathryn E. Watts1*, Matthew A. Coble2...94305, U.S.A. Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada 89557, D U.S...efforts to UPb date zircons from the late Eocene Caetano caldera by SIMS (SHRIMP-RG: sensitive 1 ACCEPTED |
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