 | | Report (issue) | | MINERALIZATION IN THE VICINITY OF YUCCA MOUNTAIN, NYE COUNTY, NEVADA By EDWIN H. McKEE 1 and JOEL R. BERGQUIST...this report. Steven I. Weiss of the University of Nevada-Reno carefully reviewed the manuscript and offered...Spengler, Zell Peterman, and Larry Hayes of the Yucca Mountain Project Branch provided much appreciated administrative... GEOLOGIC SETTING Yucca Mountain is in the western part of the southwest Nevada volcanic field. This...American continental shelf. Nearby, southwest of Yucca Mountain, are several geologically young (ca. 140 thousand |  | | Journal (article/letter/editorial) | | precious-metal mineralization in the southwestern Nevada volcanic field, USA S t e p h e n B. C a s t o r a a n d...i s s b "Nevada Bureau of Mines and Geology, Mackay School of Mines, Universityof Nevada, Reno, NV 89557...89557. USA bDepartment of Geological Sciences, Mackay School of Mines, Universityof Nevada, Reno. NV...NV 89557, USA (Received August 27, 1991; accepted after revision January 27, 1992 ) ABSTRACT Castor, S...southwestern Nevada volcanic field, USA. Ore Geol. Rev., 7: 193-223. The southwestern Nevada volcanic field |  | | Journal (article/letter/editorial) | | AND SIGNIFICANCE AT YUCCA MOUNTAIN, OF PYRITE IN ASH-FLOW TUFFS NEVADA STEVEN I. WEISS, DONALD...Geological Sciences, MackaySchool of Mines,University of Nevada, Reno,Reno,Nevada89557 Introduction et al., 1994)...areasof the southwestern Nevadavolcanic YuccaMountain,Nevada,the onlysitepresentlybeing field. Theseunitslie...(1994)is not consistent with the temperature, fo2and Mountain caldera complex ofthemiddleMiocenesouthwest-fs2ofmajorash-flow... eruptions. It is our contention that inconern Nevada volcanic field (Noble et al., 1991; Castor and |  | | Report (issue) | | are of the type often referred to as quartz-adularia, adularia-sericite or low-sulfur vein systems in the...epithermal vein type of deposit include Bruner, Nevada, and Hayden Hill, High Grade, and Winters, California...Colorado); Davis and others, 1971 (Tonopah district, Nevada); Kleinhampl and others, 1975 (Bodie District,...to the Goldfield quartz-alunite Au-Ag district (Nevada), and the nearby Cuprite deposit which has served...study, but valuable because it is over a quartz-adularia style deposit, is reported by Magee and others |  | | Journal (article/letter/editorial) | | PALEOHYDROLOGIC CONDITIONS IN SILICIC TUFF FROM YUCCA MOUNTAIN, NEVADA DAVID J L. BISH' AND JAMES L. ARONSON2...Abstract-The clay mineralogy of tuffs from Yucca Mountain, Nevada, the potential site of the nation's first...clay-mineral separates from three drill holes at Yucca Mountain (USW G-l, USW G-2, and USW GU-3/G-3) were studied...and G-2. The predominant clay minerals in the Yucca Mountain tuffs are interstratified liS, with minor amounts...portion of Yucca Mountain were altered 10.0-11 my ago, soon after creation of the Timber Mountain caldera |  | | 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...Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved...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 |  | | Journal (article/letter/editorial) | | completely replaced by mordenite, celadonite, adularia, cy-cristobalite, and quartz. The notation used...alteration assemblage mordenite + celadonite + adularia + arcristobalite + quartz (Y8-420T and Y8-480T)...that may have a relatively high e value is adularia. Adularia is present only in the pumiceous tuff of...downhole sampler. not feasible to prepare an adularia separate because of its fine grain size and the...by obsidian dissolution; this phase is probably adularia. The data for whole rock Ba and Ra in Table 1 |  | | Report (issue) | | PETROGRAPHY OF THE BEDDED TUFFS, YUCCA MOUNTAIN, NYE COUNTY, NEVADA By Sharon F. Diehl and Michael P...Open-File Report 89-3 Prepared in cooperation with the Nevada Operations Office U.S. Department of Energy (Interagency...PETROGRAPHY OF THE BEDDED TUFFS, YUCCA MOUNTAIN, NYE COUNTY, NEVADA By Sharon F. Diehl U.S. Geological............. Stratigraphy of bedded tuffs at Yucca Mountain.................. Methods of study............................. Diagenetic zones in the Yucca Mountain stratigraphic column...................... |  | | Report (issue) | | Place, P.O. Box 9 140, Boulder, Colorado 80301-9140, USA. Copyright is not claimed on any material prepared...Place, P.O. Box 9 140, Boulder, Colorado 80301-9140, USA www.geosociety.org Printed in U.S.A. GSA Books Science...3. Geotechnical properties of tuffs at Yucca Mountain, Nevada . . . . . . . . . . . . . . . . . . . ...Windantide Place, Freeland, Washington 98249-9683, USA ABSTRACT Tuffs have been a part of man’s environment...Windantide Place, Freeland, Washington 98249-9683, USA Many cities in volcanic regions have serious problems |  | | Journal (article/letter/editorial) | | geochemistry, 60( 12): 21 I I Adularia (K-feldspar) H, defects, 60(21): 4075 Alaska, USA U-Pb dating, zircon,...kinetics, effect of DOC, 60( 15): 2765 REE, Yucca Mountain, Nevada, 60( 22) : 4417 sorption, Co’+, 60( 15):...isotope composition, C and 0,60(2): 337 Sr, Yucca Mountain, Nevada, 60( 22) : 4417 Sr/Ca, skeletal, Mytilus...production, nuclear spallation, 60(4): 679 California, USA Death Valley, shrubs and trees, 60( 16): 3015 Dish...60( 11): 1909 dating, carbonate, Lake Lahontan, Nevada. 60( \ 15): -, 2817 Carbon dioxide alteration |  | | Journal (article/letter/editorial) | | uranium deposits in northwestern Nevada and southeastern Oregon, USA Stephen B. Castor ) , Christopher...NV 89557, USA Received 14 June 1999; accepted 24 September 1999 Abstract Northwestern Nevada and southeastern...much as 5% Zr. Gangue minerals include quartz, adularia, fluorite, and numerous sulfides. 40Arr39Ar dating...dating of adjacent volcanic rocks and adularia indicates that mineralization was contemporaneous with...numerous sulfides. Minor U occurrences at Buff Peak, Nevada, the newly recognized, westernmost topaz Žperaluminous |  | | Journal (article/letter/editorial) | | conditions. Calcite precipitated in the tuff at Yucca Mountain (USA) reveals flat chondrite-normalized patterns...minerals, goethite and Mn oxy-hydroxide 2. Calcite, adularia, chlorite, hematite, fluorite, quartz, pyrite,...laumontite, sphalerite, and analcime 3. Calcite, adularia, laumontite, chlorite, quartz, illite, and hematite...pyrite, prehnite, fluorite, muscovite, laumontite, adularia, and hematite 5. Mylonite: quartz, epidote, muscovite...of epigenetic hydrothermal activity at Yucca Mountain, Nevada: preliminary data on the fluid inclusion |  | | Journal (article/letter/editorial) | | K-metasomatism in the Socorro area. Secondary adularia in the upper Lemitar tuff from a location at the...in the region are much lower (0.712) than the adularia values and suggest that such brines were not responsible...1979). Nevertheless, silicate minerals, such as adularia and various clay minerals, can be the dominant...compositions ash flow tuff from southern New Mexico (USA). The upper Lemitar Tuff has been the subject of...K-metasomatism in this tuff is the silicate mineral, adularia, which is often complexly intergrown with primary |  | | Journal (article/letter/editorial) | | temperatures close to 200 °C with precipitation of adularia, albite, prehnite, laumontite, calcite and chlorite...2: A sequence of hydrothermal minerals, mainly adularia, albite, prehnite, laumontite, calcite, chlorite...obtained from 40Ar/39Ar ages of fracture filling adularia of generation 2, which cross-cut the older epidote...hydrothermal fluid. 40 Ar/39Ar ages of generation 2 adularia indicate circulation of the hydrothermal fluids...(Lindblom, 1987). Two 40Ar/39Ar ages of generation 3 adularia have been obtained by Sandström et al. (2006a |  | | Journal (article/letter/editorial) | | associated with opal-CT and sometimes with smectite. An adularia-like feldspar, cristobalite and epigenetic quartz...Quartz veins in welded subunit and K-feldspar (adularia-like) preferentially located near the faults are...of ®brous mordenite (sample PG4), SEM image; h adularia-like K-feldspar crystals (sample 46), SEM image...faults, have abundant and small aggregates of adularia-like K-feldspars (Fig. 3h) and quartz of epigenetic...trends, epigenetic microcrystals of K-feldspars (adularia-like) and quartz occur (samples 13, 74A). Both |  | | Report (issue) | | ANALYSES OF VOLCANIC ROCKS FROM THE NEVADA TEST SITE AREA, NYE COUNTY, NEVADA by William R. Page Open-File...Report 90-87 Prepared in cooperation with the Nevada Operations Office U.S. Department of Energy (Interagency............in pocket Figure 1. Map showing the Nevada Test Site and surrounding 2. 3. Standard card...location of drill holes at Yucca 4. Map showing calderas of the southwestern Nevada volcanic field.........rock samples collected from the Nevada Test Site, Nye County, Nevada, between 1960 and 1985 were analyzed |  | | Report (issue) | | Science in the Yucca Mountain Project Symposium on "Fractures, Hydrology, and Yucca Mountain": Abstracts...Science in the Yucca Mountain Project Symposium on "Fractures, Hydrology, and Yucca Mountain": Abstracts...Regional-scale Velocity Anisotropy Inferred from Nevada Test Site Nuclear Test P-arrivals by Stephen Harmsen...G-Tunnel Underground Facility, Rainier Mesa, Nevada Test Site, Nevada by S.F. Diehl, M.P. Chornack, H.S. Swolfs...Distribution of Fracture-lining Minerals at Yucca Mountain by B. Carlos, D. Bish, S. Chipera ........ |  | | Journal (article/letter/editorial) | | Lithium-Rich Claystone in the McDermitt Caldera, Nevada, USA: Geologic, Mineralogical, and Geochemical Characteristics...D. Henry * Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, USA; vgerboa@gmail...Project) is in the McDermitt caldera in north-central Nevada and southern Oregon (Figure 1). Lithium-rich sediments...caldera [6]. Western Lithium Corp. (now Lithium Nevada Corp. which is a wholly owned subsidiary of Lithium...stage 2 deposit) to the north [7,15,16]. Lithium Nevada has three other areas in the western part of the |  | | Journal (article/letter/editorial) | | The Topopah Spring M e m b e r of the Yucca Mountain in Nevada, U.S.A., has been chosen as a future radioactive...studies of the Topopah Spring Member of the Yucca Mountain in Nevada have shown that heulandites and clinoptilolites...of significance for the clinoptilolite-rich Yucca Mountain tufts, which have been proposed as a future...potential nuclear waste repository, Yucca Mountain, Nye County, Nevada. U.S. Natl. Tech. lnfo. Serv., Rep...L.. 198t. Zeolite diagenesis below Pahute Mesa, Nevada Test Site. Clays Clay Miner., 29: 385-396. Moulder |  | | Report (issue) | | Diagenetic Alteration in "Bedded Tuffs", Yucca Mountain, Nevada: Effects on Porosity and Permeability DIEHL...quartz overgrowths. The Kfeldspar overgrowths are adularia-like in habit, inclusion-free, and rarely twinned...Center, Box 25046, Mail Stop 905, Denver, CO 80225 USA 2British Museum (Natural History), Department of...separated from the underlying Aptian-Albian Cedar Mountain Formation by a 4 m.y. unconformity. The Cenomanian...in turn grades into the upper part of the Cedar Mountain Formation, and (3) the unconformity between the |  | Cappelletti, P., Petrosino, P., de Gennaro, M., Colella, A., Graziano, S. F., D’Amore, M., Mercurio, M., Cerri, G., de Gennaro, R., Rapisardo, G., Langella, A. (2015) The “Tufo Giallo della Via Tiberina” (Sabatini Volcanic District, Central Italy): a complex system of lithification in a pyroclastic current deposit. Mineralogy and Petrology, 109 (1) 85-101 doi:10.1007/s00710-014-0357-z | Journal (article/letter/editorial) | | converted into a more stable phase such as an adularia-like phase. In addition to the zeolitization process...lowermost portions of the pyroclastic deposit, an adularia-like phase also occurs (Fig. 7c), in some instances...characterized by the presence of high amounts of adularia, a different genetic process should be invoked...matrix c adularia-like phase; d chabazite crystals progressively transforming to K-feldspar (adularia) Crystal...leading to the transformation of chabazite to adularia (Fig. 7d). Here the residual chabazite, which |  | 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...from fluid conduits in the sequence silica-adularia, adularia-smectite, smectite (intermediate argillic)...arsenopyrite. Field relations indicate that silica-adularia alteration is superimposed on argillic and propylitic...stockwork quartz-adularia veins, banded and crustiform opaline and chalcedonic silica-adularia veins, silica-adularia |  | Cheshire, M. C., Caporuscio, F. A., Rearick, M. S., Jove-Colon, C., McCarney, M. K. (2014) Bentonite evolution at elevated pressures and temperatures: An experimental study for generic nuclear repository designs. American Mineralogist, 99 (8) 1662-1675 doi:10.2138/am.2014.4673 | Journal (article/letter/editorial) | | paleohydrologic conditions in silicic tuff from Yucca Mountain, Nevada. Clays and Clay Minerals, 41, 148–161....performance of a nuclear waste repository at Yucca Mountain, Nevada, U.S.A. American Mineralogist, 88, 1889–1902...chemistry of diagenetic minerals at Yucca Mountain, Nye County, Nevada. Clays and Clay Minerals, 35, 89–110...of clinoptilolite-analcime equilibria at Yucca Mountain, Nevada, U.S.A. Clays and Clay Minerals, 42, 226–239... Eds., Research and Development Related to the Nevada Nuclear Waste Storage Investigation July 1 – September |  | | Report (issue) | | G-Tunnel Underground Facility, Rainier Mesa, Nevada Test Site, Nevada DIEHL, S.F., CHORNACK, M.P., SWOLFS, H...Trace-Element Zoning in the Bodie Mining District, Mono County, California--A Comparison to the "Hot Spring" Model...Multidisciplinary Case Study of a Uraniferous Mountain Wetland OWEN, D.E., OTTON, J.K. SCHUMANN, R.R...Controlled Gold Trends Imply Large Gold Resources in Nevada SHAWE, D.R. .............................. 15...rank of high-volatile A bituminous coal and Rocky Mountain and Northern Great Plains Cretaceous and Tertiary |
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