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Mines, Prospects, and Mineral Occurrences in Esmeralda and Nye Counties, Nevada, Near Yucca Mountain

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Mines, Prospects, and Mineral Occurrences in Esmeralda and Nye Counties, Nevada, Near Yucca Mountain Mines, Prospects, and Mineral Occurrences in Esmeralda and Nye Counties, Nevada, Near Yucca Mountain (C' - iOFFICE !1 ORIGINIj • WI n"NIF ,1 V/ U.S. Geological Survey Administrative Report 9207020304 920619i 199 PDR WASTE WM-11 PDR Mines, Prospects, and Mineral Occurrences in Esmeralda and Nye Counties, Nevada, Near Yucca Mountain JOEL R. BERGQUIST and EDWIN H. McKEE U.S. Geological Survey DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY U.S. Geological Survey Administrative Report to the Department of Energy Yucca Mountain Project iqal CONTENTS Introduction iii Acknowledgments iv Geologic setting iv References Cited v Appendix 1 1 Notes on the plates 385 Errata 385 PLATES 1. Map showing mines, prospects, and mineral occurrences in Esmeralda and Nye Counties, Nevada, near Yucca Mountain 2. Geologic map of the southern Nevada volcanic field with mineral-deposit type designations for some mines near Yucca Mountain ii MINES AND PROSPECTS IN ESMERALDA AND NYE COUNTIES, NEVADA, NEAR YUCCA MOUNTAIN By Joel R. Bergquist and Edwin H. McKee U.S. Geological Survey INTRODUCTION This report was prepared for the Yucca Mountain Project, Department of Energy, as part of the study of the mineral and energy potential of the site (Activity 8.3.1.9.2.1.5) under the Human Interference part of the program. This document presents a compilation of information on mines, prospects, and mineral occurrences in Esmeralda and Nye Counties, Nevada in the vicinity of Yucca Mountain. Appendix 1 contains a listing of records of data on mineral properties organized alphabetically by property name. Most of the data compiled in this report are contained in the U. S. Geological Survey Mineral Resource Data System (MRDS). MRDS is a computer-based mineral-deposit database that consists of 84,000 records for mines and prospects worldwide and 6,400 records for the state of Nevada. Each record includes information (fields) on property name, mining district, location (by both political subdivision and coordinates), commodities, geology, production, reserves, and bibliographic data. This system runs on a mainframe computer. A more "user-friendly" way to obtain the data for a small number of records is to use the Resource Oriented Computer System (ROCS) developed at the U.S. Geological Survey by Paul G. Schruben and Carl A. Carlson. ROCS is an application that runs on Apple Macintosh computers and displays mineral-resource data from the MRDS database, as well as other earth-science data. ROCS extends the Maclntosh graphical interface to provide access to both the mineral-resource database and map plotting tools. It can be used to produce printed files as well as maps with plots of various kinds of data. For this study, relevant parts of the MRDS files were downloaded into ROCS to use in producing this report. Information in ROCS is available to the public at the following locations: Reno, NV Sue Marcus 702-784-5590 FTS 470-5590 Lorre Moyer 702-784-5552 FTS 470-5552 U.S. Geological Survey University of Nevada, Reno Scrugham Engineering & Mines Bldg. Reno, NV 89557-0047 Spokane, WA Kate Johnson 509-353-2649 FTS 439-2649 U.S. Geological Survey U.S. Courthouse, Room 651 W 920 Riverside Ave. Spokane, WA 99201 Tucson, AZ Frances Pierce 602-882-4795 FTS 762-4795 U.S. Geological Survey 845 N. Park Ave., #100 Tucson, AZ 85719 iii ACKNOWLEDGMENTS The authors wish to express their thanks to the following people who helped in the production of this report. Robert J. Miller produced the digital maps and gave us valuable advice on preparing the plates. Diana Mangan drafted additional work on the plates, and produced the cover, and report. Ana Barrales worked on the manuscript and helped with production. Don Huber, Mike Diggles, and Jo Peterson provided valuable assistance in manipulating the MRDS and ROCS mineral-resource databases. Bill Keith reviewed the manuscript. Bill Langer, Geologic Division Coordinator for the Yucca Mountain Project, provided much appreciated administrative support and guidance through the paperwork jungle. GEOLOGIC SETTING Yucca Mountain is in the western part of the southwest Nevada volcanic field. This volcanic province is comprised of widespread middle and late Miocene ash-flow sheets and lavas deposited on complexly deformed and locally metamorphosed Precambrian and Paleozoic sedimentary rocks. The Precambrian and Paleozoic strata are mostly carbonate and quartzose marine sedimentary rocks deposited on the ancient North American continental shelf. Nearby, southwest of Yucca Mountain, are several geologically young (- 130 ± thousand years old) cinder cones and associated basalt lava flows. Exposures on Yucca Mountain are entirely Miocene ash-flow tuffs--no Precambrian or Paleozoic rocks crop out and no younger basaltic rocks occur. Igneous activity of the SW Nevada volcanic field can be divided into four magmatic stages. The first, and most voluminous stage began about 15.2 Ma with emplacement of the Redrock Valley Tuff and ended about 12.8 Ma with eruption of the Paintbrush Tuff. This stage is characterized by eruption of many (at least 9) large rhyolitic ash-flow tuff sheets of subalkaline character and some dacitic lava flows. The first of the large collapse calderas for which the SW Nevada volcanic field is famous formed after eruption of the large volume ash-flow tuff sheets. After a lull of more than 1 million years the second magmatic stage started with eruption of the Timber Mountain Tuff comprised of two very widespread ash-flow tufffs, the Rainer Mesa and overlying Ammonia Tanks Members. The Timber Mountain caldera formed at this time (about 11.4 Ma). Much less voluminous rhyolite tuffs and lavas and associated mafic and intermediate lavas about 10 million years old mark the end of this stage. The third stage is represented by alkaline, peralkaline, and subalkaline rocks of the Black Mountain and Stonewall Mountain volcanic centers (both collapse calderas) erupted between about 9 to 7 Ma. These centers are north of Yucca Mountain and tuffs from them do not crop out on Yucca Mountain. The fourth and last igneous stage is represented by the very small volume basaltic eruptions typified by the Lathrop Wells cinder cone Red cinder cone and associated small cones and lava flows. Rocks from this last stage are all less than 0.5 Ma. Mineralization caused by hydrothermal activity associated with the first two magmatic stages is seen at many places along the western edge of the SW Nevada volcanic field west of Yucca Mountain. Epithermal gold and flourite mineralization at the Daisy, Goldspan, Mother Lode and Stirling mines on the northern and eastern edge of Bare Mountain yield radiometric ages about 13 Ma. The most extensive mineralization is found in the Bullfrog Hills and is related to the Timber Mountain magmatic stage (about 11 Ma). No mineral deposit has have been recognized on Yucca Mountain. iv REFERENCES CITED Cox, D. P., and Singer, D. A., eds., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, 379 p. Noble, D. C., Weiss, S. I., and McKee, E. H., 1991, Magmatic and hydrothermal activity, caldera geology, and regional extension in the western part of the southwestern Nevada volcanic field in Raines, G. L., Lisle, R. E., Schafer, R. W., and Wilkinson, W. H., eds., Geology and ore deposits of the Great Basin: Symposium Proceedings, Geological Society of Nevada, Reno, 2. vols., p 913-934. V Mineral Resources Data Svstem Numb61 Record Number M 2 31 93 4 Record Tvoe X 1 M Info Source I Report Date 81 03 Reporter WONG. GEORGE (ROBERTS. RALPH) Reporter USGS Site Name ARISTA MINE Location Information - District Name FLUORINE DISTRICT Country UNITED STATES Country Code US State NEVADA State Code NV Countv NYE Phvsiooraohic 12 BARE MOUNTAIN Drainaoe Area 18090202 AMARGOSA DESERT Land Status 40 Ouadranole 2 BARE MTN. (1954) Scale 62500 UTM Northina 4076200 UTM Eastino 526840 UTM Zone +11 Elevation 3820 FT Latitude 36-49-59N Decimal Lat 36.83305 Lonoitude 116-41-56W Decimal Lona .116.69888 Township 013S Section 02 Ranae 047E Meridian MT. DIABLO Position 2.3 MILES N-NE OF CARRARA .. Commodity Information Commodities AU Maior AU Ore Materials NATIVE GOLD - Exploration and Develooment - Production S m a I I Status Developed Producer. Inactive Year of 1929 Owner 1951 - W.H. CALLICOTT Deoosit Descrintion Deposit Tvoe VEIN/SHEAR ZONE Maximum Width 3 0 Units FT Deoosit Size Small Workinas Description -- I Record Number M 23 1 9 34 (..:..Continued) Desc Workinos Underarou nd Workinas WORKINGS CONSIST OF A 175 FT ADIT. AND A 60 FT ADIT. -- Geoloav - Host Rock Aae E C A MB Host Rock Tvoe OUARTZITE. TALC SCHIST Reference KRAL. V.E.. 1951. MINERAL RESOURCES OF NYE CO.: NBMG BULL. 50. P. 64 Cumulative Production -. Item Ac c Amount Thous Ye a rs Grade ORE AC C 0.00125 TONS 19 40 11.11 OZ/TON AU Prod Source Inf oKRAL. 1951. P. 64 2 Mineral Resources Data Svstern Numbs2 Record Number M241 924 Record Tvoe X 1 M Info Source 2 Reoort Date 82 09 Reoorter LA POINTE. D.0. (TINGLEY. J.V.i Reoorter NBMG Site Name B & M PROPERTY Synonym Name B & M. B & M NOS. 1-4. GARNET CLAIMS Location Information District Name HORNSILVER (GOLD POINT. LIME POINT) Country UNITED STATES Country Code U S State NEVADA State Code N V County ESMERALDA Ph vsioaraohic 12 Drainace Area 18090203 Land Status 49 (19721 Quadranale GOLDFIELD 119701 Scale 250000 Quadranole 2 GOLD POINT (1968) Scale 24000 UTM Northina 4128470 UTM Eastino 469210 UTM Zone +11 Elevation 6350 FT Latitude 37-18-15 N Decimal Lat 37.3041 6 Lonaitude 117-20-51W Decimal Lone -117.3475 Accuracy TO WORKINGS IN APPROXIMATE VICINITY OF THE PROPERTY Townshio 007S Section ? UNSURVEYED 26? Rance 041 .5E Meridian MOUNT DIABLO Position EXACT LOCATION UNCERTAIN: UTM'S APPROXIMATE Location 5 CLAIMS 4 MILES SE OF HORNSILVER AND 4 MILES W OF GOLD MOUNTAIN -- Commodity Information - Commodities AG AU Maior A G Minor A U Ore Materials UNKNOWN Analytical Data 23 ASSAYS YIELDED FROM TR.
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