Entry_ID: (required) Entry_Title: Digital Geologic Map Database of the Nevada Test Site Area, Nevada Group: Data_Set_Citation Originator(s): Wahl, Ronald R.; Sawyer, David A.; Minor, Scott A.; Carr, Michael D.; Cole, James C.; Swadley, W.C.; Laczniak, Randell J.; Warren, Richard G.; Green, Katryn S.; Engle, Colin M. Title: Digital Geologic Map Database of the Nevada Test Site Area, Nevada Publication: U.S. Geological Survey Open-File Report Publication_Date: 19970411 Publication_Place: Denver, CO Publisher: U.S. Geological Survey Edition: 1 Data_Presentation_Form: map URL: http://pubs.usgs.gov/of/1997/ofr-97-0140/ End_Group Keyword: geology Keyword: volcanism Keyword: nuclear testing Keyword: Basin and Range tectonics Keyword: None Keyword: Cenozoic Keyword: Tertiary Keyword: Neogene Keyword: pre Cenozoic Keyword: Paleozoic Keyword: pre Cambrian Group: Temporal_Coverage Start_date: cc2500000000 Stop_date: Present End_Group Data_Set_Progress: In work Group: Spatial_Coverage Southernmost_Latitude: 36.5 Northernmost_Latitude: 37.5 Westernmost_Longitude: -117.0 Easternmost_Longitude: -115.875 End_Group Location: western United States Location: Basin and Range Location: Nevada Location: NV Location: Nevada Test Site Location: Southwest Nevada Volcanic Field Location: SWNV Field Group: Data_Resolution Latitude_Resolution: 1.0 Longitude_Resolution: 1.0 End_Group Access_Constraints: None Use_Constraints: None Originating_Center: (required) Group: Data_Center Data_Center_Name: USGS Information Services Dataset_ID: U.S. Geological Survey Open-File Report 97-140 Group: Data_Center_Contact Last_name: USGS Information Services First_name: N/A Phone: (303) 202-4210 Group: Address Mail Stop 517 U.S. Geological Survey Box 25286, Building 810 Denver Federal Center Denver, Colorado 80225-0286 End_Group End_Group End_Group Storage_Medium: SunOS, 5.3, sun4m UNIX, ARC/INFO version 7.0.3 Group: Reference End_Group Group: Summary These data were collected in support of the Department of Energy (DOE) activities at the NTS. The data were collected to provide both detailed information and a regional synthesis of geologic knowledge of the NTS. Forty years of geologic investigations at the Nevada Test Site (NTS) have been digitized. These data include all geologic information that: (1) has been collected, and (2) can be represented on a map within the map borders at the map scale is included in the map digital coverages. The following coverages are included with this dataset: >Coverage Type Description >------------------------------------------ >geolpoly Polygon Geologic outcrops >geolflts line Fault traces >geolatts Point Bedding attitudes, etc. >geolcald line Caldera boundaries >geollins line Interpreted lineaments >geolmeta line Metamorphic gradients These coverages are attributed with numeric values and interpreted information. The entity files documented below show the data associated with each coverage. /* Procedures_Used The original digital data came from the SCITEX scan used to print the first NTS geologic map. More detailed information was compiled from unpublished digital geologic data at a scale of 1:24,000 and generalized for presentation at 1:100,000. Digital data was compiled from aerial photography annotated with field geologic data. Further data was supplied from unpublished geologic map information in many forms. /* Revisions This is Revision 3 of this data set. See references for previous revisions. /* Reviews_Applied_to_Data: The geologic data content has been reviewed by geologists of the National Cooperative Geologic Mapping Program and the data structures by GIS specialists also of the National Cooperative Geologic Mapping Program. /* Related_Spatial_and_Tabular_Data_Sets: The following coverages are related to the main database and are included with the database. Other than the descriptions below, these data are not attributed. >Coverage Type Description >--------------------------------- >pmtopo line Vectorized scan of the Pahute Mesa 1:100,000 topographic sheet. >pahrtopo line Vectorized scan of the west 7'30" of the Pahranagat Range 1:100,000 topographic sheet. >idnstopo line Vectorized scan of the west 7'30" of the Indian Springs 1:100,000 topographic sheet. >btycult line Vectorized scan of the cultural layer from the Beatty 1:100,000 topographic sheet. >btyhydro line Vectorized scan of the hydrography layer from the Beatty 1:100,000 topographic sheet. >btyhyppr line Vectorized scan of the index contours from the Beatty 1:100,000 topographic sheet. >btyhypsc line Vectorized scan of the secondary contours from the Beatty 1:100,000 topographic sheet. >nts_bdy line Boundary of the Nevada Test Site. /* Other_References_Cited Armstrong, R.L., 1970, Geochronology of Tertiary igneous rocks, eastern Basin and Range Province, western Utah, eastern Nevada, and vicinity, U.S.A.: Geochimica et Cosmochimica Acta, v. 34, p. 203-232. Barnes, Harley, and Christiansen, R.L., 1967, Cambrian and Precambrian rocks of the Groom district, Nevada, southern Great Basin: U.S. Geological Survey Bulletin 1244-G, p. G1-G34. Barnes, Harley, Christiansen, R.L., and Byers, F.M., Jr., 1965, Geologic map of the Jangle Ridge quadrangle, Nye and Lincoln Counties, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-363, scale 1:24,000. Barnes, Harley, Ekren, E.B., Cleaves, and Hedlund, D.C., 1982, Geologic and tectonic maps of the Mercury quadrangle, Nye and Clark Counties, Nevada: U.S. Geological Survey Miscellaneous Investigations Map I-1327, scale 1:24,000 Barnes, Harley, Houser, F.N., and Poole, F.G., 1963, Geologic map of the Oak Spring quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-214, scale 1:24,000. Bath, G.D., 1968, Aeromagnetic anomalies related to remnant magnetism in volcanic rock, Nevada Test Site, in Eckel, E.B., ed., Nevada Test Site: Geological Society of America Memoir 110, p. 135-146. Berry, W.B.N., and Boucot, A.J., 1970, Correlation of the North American Silurian rocks: Geological Society of America Special Paper 102, 289 p. Best, M.G., Christiansen, E.H., Denio, A.L., Gromme, C.S., McKee, E.H., and Noble, D.C., 1989, Eocene through Miocene volcanism in the Great Basin of the western United States: New Mexico Bureau of Mines and Mineral Resources Memoir 47, p. 91-133. Brogan, G.E., Kellogg, K.S., Slemmons, D.B., and Terhune, C.L., 1991, Late Quaternary faulting along the Death Valley-Furnace Creek fault system, California and Nevada: U.S. Geological Survey Bulletin 1991,23 p. Burchfiel, B.C., 1966 Reconnaissance geologic map of the Lathrop Wells 15-minute quadrangle, Nye County, Nevada, U.S. Geological Survey Mis- cellaneous Geologic Investigations Map I-474, scale 1:62,500. Burchfiel, B.C., 1966, change to:Burchfiel, B.C. , 1964, Precambrian and Paleozoic stratigraphy of the Specter Range quadrangle, Nye County, Nevada, American Association of Petroleum Geologists Bulletin, v. 48, p. 40-56. Burchfiel, B.C. , 1965, Structural geology of the Specter Range quadrangle, and its regional significance: Geological Society of America Bulletin, v. 76, p. 175-192. Burchfiel, B.C., 1964 Precambrian and Paleozoic stratigraphy of the Specter Range quadrangle, Nye County, Nevada, American Association of Petroleum Geologists Bulletin, v. 48, p. 40-56. Byers, F.M., Jr., and Barnes, Harley, 1967, Geologic map of the Pahute Ridge quadrangle, Nye and Lincoln Counties, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-577, scale 1:24,000. Byers, F.M., Jr., Carr, W.J., Christiansen, R.L., Lipman, P.W., Orkild, P.P., and Quinlivan, W.D., 1976a, Geologic map of the Timber Mountain caldera area, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-891, scale 1:48,000. Byers, F.M., Jr., Carr, W.J., Orkild, P.P., 1989, Volcanic centers of southwestern Nevada: evolution of understanding, 1960-1988: Journal of Geophysical Research, v. 94, no. B5, p. 5908-5924. Byers, F.M., Jr., Carr, W.J., Orkild, P.P., Quinlivan, W.D., and Sargent, K.A., 1976b, Volcanic suites and related cauldrons of Timber Mountain-Oasis Valley caldera complex, southern Nevada: U.S. Geological Survey Professional Paper 919, 70 p. Byers, F.M., Jr., and Cummings, David, 1967, Geologic map of the Scrugham Peak quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-695, scale 1:24,000. Byers, F.M., Jr., Rogers, C.L., Carr, W.J., and Luft, S.J., 1966, Geologic map of the Buckboard Mesa quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-552, scale 1:24,000. Carr, M.D., Sawyer, D.A., Nimz, K., Maldonado, F., and Swadley, WC, 1995, Digital bedrock geologic map database of the Beatty 30 x 60 minute quadrangle, Nevada and California, U.S. Geological Survey Open-File Report 96-0291, scale 1:100,000. Carr, M.D., Waddell, S.J., Vick, G.S., Stock, J.M., Monsen, S.A., Harris, A.G., Cork, B.W., and Byers, F.M., Jr., 1986, Geology of drill hole UE25p#1: a test hole into pre- Tertiary rocks near Yucca Mountain, southern Nevada: U.S. Geological Survey Open-file Report 86-175, 87 p. Carr, W.J., 1984, Regional structural setting of Yucca Mountain, southwestern Nevada, and late Cenozoic rates of tectonic activity in part of the southwestern Great Basin, Nevada and California: U.S. Geological Survey Open-File Report 84-854, 109 p. Carr, W.J., Byers, F.M., Jr., and Orkild, P.P., 1986, Stratigraphic and volcano-tectonic relations of Crater Flat Tuff and some older volcanic units, Nye County, Nevada: U.S. Geological Survey Profess- ional Paper 1323, 28 p. Carr, W.J., and Quinlivan, W.D., 1966, Geologic map of the Timber Mountain quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-503, scale 1:24,000. Carr, W.J., 1982, Volcano-tectonic history of Crater Flat, southwest- ern Nevada, as suggested by new evidence from drill-hole USW-VH-1 and vicinity: U.S. Geological Survey Open-file Report 82-457, 25 p. Carroll, R.D., 1989, Density logging and density of rocks in Rainier Mesa area, Nevada Test Site: U.S. Geological Survey Open-File Report 89-329, 72 p. Cashman, P.H., and Trexler, J.H., Jr., 1991, The Mississippian Antler foreland and continental margin in southern Nevada: the Eleana Forma- tion reinterpreted, in Cooper, J.D., and Stevens, C.H., eds., Paleozoic paleogeography of the western United States II: Society of Economic Paleontologists and Mineralogists, Pacific Section, v. 67, p. 271- 280. Cashman. P.H., and Trexler, J.H., Jr., 1994, The case for two coeval Mississippian sections at the Nevada Test Site, in McGill, S.F. and Ross, T.M., eds., Geologic Investigations of an Active Margin: Geological Society of America Cordilleran Section Guidebook, San Bernadino, California, p. 76-81. Cemen, Ibrahim, Wright, L.A., Drake, R.E., and Johnson, F.C., 1985, Cenozoic sedimentation and sequence of deformational events at the southeastern end of the Furnace Creek strike-slip fault zone, Death Valley region, California: Society for Economic Mineralogists and Petrologists Special Publication 37, p. 127-141. Christiansen, R.L., and Lipman, P.W., 1965, Geologic map of the Topopah Spring NW quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-444, scale 1:24,000. Christiansen, R.L., and Noble, D.C., 1968, Geologic map of the Trail Ridge quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-774, scale 1:24,000. Christiansen, R.L., Lipman, P.W., Carr, W.J., Byers, F.M., Jr., Orkild, P.P., and Sargent, K.A., 1977, Timber Mountain-Oasis Valley caldera complex of southern Nevada: Geological Society of America Bulletin, v. 88, p. 943-959. Cole, J.C., 1991, Pre-drilling geologic summary for characterization well "E-Tunnel access" ER-12-1: U.S. Geological Survey Administrative Report, 9 p. Cole, J.C., Wahl, R.R., and Hudson, M.R., 1989, Structural relations within the Paleozoic basement of the Mine Mountain block: implications for interpretation of gravity data in Yucca Flat, Nevada Test Site, in Olsen, C.W., and Carter, J.A., eds., Proceedings of the Fifth Symposium on the Containment of Underground Nuclear Explosions, Santa Barbara, California: Lawrence Livermore National Laboratory Report CONF-8909163, v. 2, p. 431-455. Cole, J.C., Trexler, J.H., Jr., Cashman, P.H., and Hudson, M.R., 1994, Structural and stratigraphic relations of Mississippian rocks at the Nevada Test Site, in McGill, S.F. and Ross, T.M., eds., Geologic Investigations of an Active Margin: Geological Society of America Cordilleran Section Guidebook, San Bernadino, California, p. 66-75. Colton, R.B., and McKay, E.J., 1966, Geologic map of the Yucca Flat quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-582, scale 1:24,000. Colton, R.B., and Noble, D.C., 1967, Geologic map of the Groom Mine SW quadrangle, Nye and Lincoln Counties, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-719, scale 1:24,000. Cornwall, H.R., 1972, Geology and mineral deposits of southern Nye County, Nevada: Nevada Bureau of Mines and Geology Bulletin 77, 49 p. Cornwall, H.R., and Kleinhampl, F.J., 1961, Geologic Map of the Bare Mountain quadrangle, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ- 157, scale 1:62,500. Cornwall, H.R., and Kleinhampl, F.J., 1964, Geology of Bullfrog quadrangle and ore deposits related to Bullfrog Hills Caldera, Nye County, Nevada and Inyo County, California: U.S. Geological Survey Professional Paper 454-J, 25 p. Crowe, B.M., Vaniman, D.J., and Carr, W.J., 1983, Status of volcanic hazard studies for the Nevada Nuclear Waste Storage Investigations: Los Alamos National Laboratory Report LA-9325, Los Alamos, New Mexico. Dalrymple, G.B., 1979, Critical table for conversion of K-Ar ages from old to new constants: Geology, v. 7, p. 558-560. Dalrymple, G.B., Izett, G.A., Snee, L.W., and Obradovich, J.D., 1993, 40Ar/39Ar age spectra and total fusion ages of tektites from Cretaceous-Tertiary rocks in the Beloc Formation, Haiti: U.S. Geological Survey Bulletin 2065, 20 pp. Dalrymple, G.B., and Lanphere, M.A., 1969, Potassium-argon dating: Principles, Techniques, and Applications to Geochronology: W.H. Freeman, New York, 258 p. Ekren, E.B., Anderson, R.E., Orkild, P.P., and Hinrichs, E.N., 1966, Geologic map of the Silent Butte quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-493, scale 1:24,000. Ekren, E.B., Anderson, R.E., Rogers, C.L., and Noble, D.C., 1971, Geology of northern Nellis Air Force Base Bombing and Gunnery Range, Nye County, Nevada: U.S. Geological Survey Professional Paper 651, 91 p. (map scale 1:125,000). Ekren, E.B., Rogers, C.L., Anderson, R.E., and Botinelly, Theodore, 1967, Geologic map of the Belted Peak quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-606, scale 1:62,500. Ekren, E.B., and Sargent, K.A., 1965, Geologic map of the Skull Mountain quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-387, scale 1:62,500. Ferguson, J.F., Cogbill, A.H., and Warren, R.G., 1994, A geophysical- geological transect of the Silent Canyon caldera complex: Journal of Geophysical Research, v. 99, p. 4323-4339. Fleck, R.J., 1970, Tectonic style, magnitude, and age of deformation in the Sevier orogenic belt in southern Nevada and southeastern California: Geological Society of America Bulletin, v. 81, p. 1705-1720. Fleck, R.J., Lanphere, M.A., Turrin, Brent, and Sawyer, D.A., 1991, Chronology of late Miocene to Quaternary volcanism and tectonism in the southwest Nevada volcanic field [abs.]: Geological Society of America Abstracts with Programs, v. 23, n. 2, p. 25. Fleck, R.J., Turrin, B.D., Sawyer, D.A.,Warren, R.G., Champion, D.E., Hudson, M.R., Minor, S.A., 1996, Age and character of basaltic rocks of the Yucca Mountain region southern Nevada: Journal of Geophysical Research Faulds, J.E., Bell, J.W., Feuerbach, D.L., and Ramelli, A.R., 1994, Geologic map of the Crater Flat area: Nevada Bureau of Mines and Geology Map 101. Fridrich, C. J., Orkild, P.P., Murray, M., and Scott, R. B. 1994, Preliminary geologic map of the East of Beatty Mountain: U.S. Geological Survey Open-file Report 94-530. Frizzell, V.A., Jr., and Shulters, Jacqueline, 1990, Geologic map of the Nevada Test Map, southern Nevada: U.S. Geological Survey Miscell- aneous Investigations Series Map I-2046, scale 1:100,000. Gibbons, A.B., Hinrichs, E.N., Hansen, W.R., and Lemke, R.W., 1963, Geology of the Rainier Mesa quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-215, scale 1:24,000. Guth, P.L., 1986, Bedrock geologic map of the Black Hills 1:24,000 quadrangle, Nevada: U.S. Geological Survey Open-File Report 86-438, scale 1:24,000. Guth, P.L., 1990, Superposed Mesozoic and Cenozoic deformation, Indian Springs quadrangle, southern Nevada, in Wernicke, B.P., ed., Basin and range extensional tectonics near the latitude of Las Vegas, Nevada: Geological Society of America Memoir 176, p. 237-249. Hausback, B.P., Deino, A.L., Turrin, B.T., McKee, E.H., Frizzell, V.A., Jr., Noble, D.C., and Weiss, S.I., 1990, New 40Ar/39Ar ages for the Spearhead and Civet Cat Canyon Members of the Stonewall Flat Tuff, Nye County, Nevada--evidence for systematic errors in standard K-Ar determinations on sanidine: Isochron/West, n. 56, p. 3-7. Hay, P.L., Pexton, R.E., Teague, T.T., and Kyser, T.K., 1986, Spring related carbonate rocks, Mg clays, and associated minerals in Pliocene deposits of the Amargosa Desert, Nevada and California: Geological Society of America Bulletin, v. 97, p. 1488-1503. Hinrichs, E.N., 1968, Geologic map of the Camp Desert Rock quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-726, scale 1:24,000. Hinrichs, E.N., Krushensky, R.D., and Luft, S.J., 1967, Geologic map of the Ammonia Tanks quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-638, scale 1:24,000. Hinrichs, E.N., and McKay, E.J., 1965, Geologic map of the Plutonium Valley quadrangle, Nye and Lincoln Counties, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-384, scale 1:24,000. Hoisch, T. D., 1995, "Report on metamorphic petrology and uplift of Bare Mountain area: Report for Yucca Mountain Project Tectonics Project. DOE Adminstrative report" Hoisch, T.D., and Simpson, C., 1993, Rise and tilt of metamorphic rocks in the lower plate of a detachment fault in the Funeral Mountains, Death Valley, California: Journal of Geophys- ical Research, v. 98, p. 6805-6827. Hoover, D.L., Swadley, WC, and Gordon, A.J., 1981, Correlation charact- eristics of surficial deposits with a description of stratigraphy in the Nevada Test Site Region: U.S. Geological Survey Open-File Report 81-512, 27 p. Houser, F.N., and Poole, F.G., 1960, Preliminary geologic map of the Climax stock and vicinity, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-328, scale 1:5,000. Hudson, M.R., 1992, Paleomagnetic data bearing on the origin of arcuate structures in the French Peak-Massachusetts Mountain area of southern Nevada: Geological Society of America Bulletin, v. 104, p. 581-594. Hudson M.R., Sawyer, D.A., and Warren, R.G., 1994, Paleomagnetism and rotation constraints for the middle Miocene southwestern Nevada volcanic field: Tectonics, v. 13, p. 258-277. Hunt, C.B., and Mabey, D.R., 1966, Stratigraphy and structure, Death Valley, California: U.S. Geological Survey Professional Paper 494-A, 162 p. Jayko, A.S., in press, Geologic Map of the Pahranagat Range 30' by 60' minute quadrangle, Nevada: Nevada Bureau of Mines and Geology Map, scale 1:100,000. Kistler, R.W., 1968, Potassium-argon ages of volcanic rocks in Nye and Esmeralda Counties, Nevada, in Eckel, E.B., ed., Nevada Test Site: Geological Society of America Memoir 110, p. 251-273. Lanphere, M.A., Dalrymple, G.B., Fleck, R.J., and Pringle, M.S., 1990, Intercalibration of mineral standards for K-Ar and 40Ar/39Ar age measurements [abs.]: Eos, American Geophysical Union Transactions, v. 71, p. 1658. Le Bas, M.J., Le Maitre, R.W., Streckeisen, A., and Zenettin, B., 1986, A chemical classification of volcanic rocks based on the total alkali-silica diagram: Journal of Petrology, v. 27, p. 82-133. Lipman, P.W., Quinlivan, W.D., Carr, W.J., and Anderson, R.E., 1966, Geologic map of the Thirsty Canyon SE quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-489, scale 1:24,000. Lipman, P.W. and McKay, E.J., 1965, Geologic map of the Topopah Spring NW quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-439, scale 1:24,000. Maldonado, Florian, 1985, Geologic map of the Jackass Flats area, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Map I-1519, scale 1:48,000. Maldonado, Florian, 1990, Geologic map of the northwest quarter of the Bullfrog 15- minute quadrangle, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-1985, scale 1:24,000. Maldonado, Florian, and Hausback, B. P., 1990, Geologic map of the northeast quarter of the Bullfrog 15-minute quadrangle, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Series Map I-2049, scale 1:24,000. Marvin, R.F., Byers, F.M., Jr., Mehnert, H.H., Orkild, P.P., and Stern, T.W., 1970, Radiometric ages and stratigraphic sequence of volcanic and plutonic rocks, southern Nye and western Lincoln Counties, Nevada: Geological Society of America Bulletin, v. 81, p. 2657-2676. Marvin, R.F., and Cole, J.C., 1979, Radiometric ages--Compilation "A", U.S. Geological Survey: Isochron West no. 22, p. 3-14. Marvin, R.F., Mehnert, H.H., and McKee, E.H., 1973, A summary of radiometric ages of Tertiary volcanic rocks in Nevada and eastern California: Part III--southeastern Nevada: Isochron/West no. 6, p. 1-30. Marvin, R.F., Mehnert, H.H., and Naeser, C.W., 1989, U.S. Geological Survey radiometric ages--Compilation "C," Part three--California and Nevada: Isochron/West no. 52, p. 3-11. McAllister, J.F., 1970, Geology of the Furnace Creek borate area, Death Valley, Inyo County, California: California Division of Mines and Geology, Map Sheet 14, 9 p. + map, scale 1:24, 000. McAllister, J.F., 1973, Geologic map and sections of the Amargosa Valley borate area--southeast continuation of the Furnace Creek area --Inyo County, California: U.S. Geological Survey Miscellaneous Investigations Series Map I-782, scale 1:24,000. McAllister, J.F., 1974, Silurian, Devonian, and Mississippian Formations of the Funeral Mountains in the Ryan quadrangle, Death Valley region, California: U.S. Geological Survey Bulletin 1386, 35 p. McKay, E.J. and Williams, W.P., 1964, Geologic map of the Jackass Flats Quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-368, scale 1:24,000. McKay, E.J. and Sargent, K.A., 1970, Geologic map of the Jackass Flats Quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-883, scale 1:24,000. McKee, E.H., 1983, Reset K-Ar ages: evidence for three metamorphic core complexes, western Nevada: Isochron/West, n. 38, p. 17-20. McKeown. F. A., Healey, D.L., and Miller, C.H., 1976, Geologic map of the Yucca Lake Quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-1327, scale 1:24,000. Metcalf, L.A., 1982, Tephrostratigraphy and potassium-argon age determinations of seven volcanic ash layers in the Muddy Creek Formation of southern Nevada: Water Resources Center, Desert Research Institute, University of Nevada, Publication 45023, 187 p. (available from National Technical Information Service, U.S. Department of Commerce, Springfield VA 22161) Miller, R.H., 1976, Revision of Upper Ordovician, Silurian, and Lower Devonian stratigraphy, southwestern Great Basin: Geological Society of America Bulletin, v. 87, p. 961-968. Miller, R. P., 1989, Late Pennsylvanian - Early Permian depositional facies and paleogeographic significance of a mixed-clastic outer-shelf -to-basin sequence, east-central California and western Nevada: Laramie, University of Wyoming M.S. thesis, 154 p. Minor, S.A., Vick G.S., Carr M.D., and Wahl, R.R., 1996, Faults, lineaments, and earthquake epicenters digital map of the Pahute Mesa 30 x 60 minute quadrangle, Nevada, U.S. Geological Survey Open-File Report 96-0262, scale 1:100,000. Minor, S.A., 1995, Superposed local and regional paleostresses fault slip analysis of Neogene extensional faulting near coeval caldera complexes, Yucca Flat, Nevada: Journal of Geophysical Research, v. 100, p. 10507-10528. Minor, S.A., Sawyer, D.A., Wahl, R.R., Frizzell, V.F., Jr., Schilling, S.P., Warren, R.G., Orkild, P.P., Cole, J.A., Hudson, M.R., Fleck, R. J., Lanphere, M.A., Swadley, WC, and Cole, J.C., 1993, Preliminary geologic map of the Pahute Mesa 30' x 60' quadrangle, Nevada: U.S. Geological Survey Open-File Report 93-299. Monsen, S.A., Carr, M.D., Reheis, M.C., and Orkild, P.P., 1990, Geologic map of Bare Mountain, Nye County, Nevada: U.S. Geological Survey Miscellaneous Investigations Map I-2201, scale 1:24,000. Naeser, C.W., and Maldonado, Florian, 1981, Fission-track dating of the Climax and Gold Meadows stocks, Nye County, Nevada: U.S. Geological Survey Professional Paper 1199-E, p. E45-E47. Noble, D.C., and Christiansen, R.L., 1968, Geologic map of the southwest quarter of the Black Mountain quadrangle, Nye County, Nevada: U.S. Geological Survey Miscellaneous Geologic Investigations Series Map I-562, scale 1:24,000. Noble, D.C., Krushensky, R.D., McKay, E.J., and Ege, J.R., 1967, Geologic map of the Dead Horse Flat quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-614, scale 1:24,000. Noble, D.C., Vogel, T.A., Weiss, S.I., Erwin, J.W., McKee, E.H., and Younker, L.W., 1984, Stratigraphic relations and source areas of ash -flow sheets of the Black Mountain and Stonewall Mountain volcanic centers, Nevada: Journal of Geophysical Research, v. 89, p. 8593-8602. Noble, D.C., Weiss, S.I., and McKee, E.H., 1991, Magmatic and hydro- thermal activity, caldera geology, and regional extension in the western part of the southwestern Nevada volcanic field, in Raines, G.L., Lisle, R.E., Schaefer, R.W., and Wilkinson, W.H., eds., Geology and ore deposits of the Great Basin: Geological Society of Nevada, symposium proceedings, Reno, p. 913-934. O'Connor, J.T., Anderson, R.E., and Lipman, P.W., 1966, Geologic map of the Thirsty Canyon quadrangle, Nye County, Nevada: U.S. Geological Survey Geologic Quadrangle Map GQ-524, scale 1:24,000. 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Weiss, S.I., and Noble, D.C., 1989, Stonewall Mountain volcanic center, southern Nevada: Stratigraphic, structural, and facies relations of outflow sheets, near-vent tuffs, and intracaldera units: Journal of Geophysical Research, v. 94, n. B5, p. 6059-6074. Wells, S.G., McFadden, L.D., Renault, C.E., and Crowe, B.M., 1990, Geomorphic assessment of late Quaternary volcanism in the Yucca Mountain area, southern Nevada: Implications for the proposed high-level radioactive waste repository: Geology, v 18, p. 549-553. Wright, L.A., and Troxel, B.W., 1993, Geologic map of the central and northern Funeral Mountains and adjacent areas, Death Valley region, southern California: U.S. Geological Survey Miscellaneous Investiga- tions Map 1-2305, scale 1:48,000. End_Group Group: DIF_Author Last_name: Wahl First_name: Ronald Middle_name: R. Email: rwahl@usgs.gov Phone: (303) 236-1320 Group: Address P.O. Box 25046 Mail Stop 913 U.S. Geological Survey Denver Federal Center Denver, CO 80225 End_Group End_Group DIF_Revision_Date: 19970411 Science_Review_Date: