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GMEG - Geophysics Unit of Menlo Park, CA- (GUMP)


Geophysics Unit of Menlo Park, CA (GUMP)

U.S. Geological Survey - Western Region - Geology and Geophysics

David A. Ponce



Ponce, D.A., and Oliver, H.W., 1981, Charleston Peak gravity calibration loop, Nevada: U.S. Geological Survey Open-File Report 8l-985, 20 p. PDF (2.7 Mb).

Ponce, D.A., and Hanna, W.F., 1982, Preliminary appraisal of gravity and magnetic data at Syncline Ridge, western Yucca Flat, Nevada Test Site, Nye County, Nevada: U.S. Geological Survey Open-File Report 82-931, 19 p. PDF (3.6 Mb).

U.S. Geological Survey, l983, Aeromagnetic maps of the southern and central Sierra Nevada foothills and adjacent San Joaquin Valley, California: U.S. Geological Survey Open-File Report 83-55, scales l:62,500 and l:250,000, 7 maps.

Ponce, D.A., 1984, Gravity and magnetic evidence of a granitic intrusion near Wahmonie site, Nevada Test Site, Nevada: Journal of Geophysical Research, v. 89, no. Bll, p. 9,40l-9,4l3. PDF (2.1 Mb).

Spielman, J.B. and Ponce, D.A., 1984, Handtc, a FORTRAN program to calculate inner-zone terrain corrections: U.S. Geological Survey Open-File Report 84-777, 20 p. PDF (2.3 Mb).

Erwin, John W., Ponce, David A., and Wagini, Alexander, 1985, Bouguer gravity map of Nevada--McDermitt sheet: Nevada Bureau of Mines and Geology Map 86, scale 1:250,000, 1 sheet.

Ponce D.A., 1986, Geophysical Studies, in McKee, E.H., Barton, H.N., Ponce, D.A., Benjamin, D.A., and Johnson, F.L., 1986, Mineral resources of the Roberts Wilderness Study Area, Eureka County, Nevada: U.S. Geological Survey Bulletin 1731-K, p. K5-K7. PDF (3.7 Mb).

Ponce, D.A., and Case, J.E., 1987, Gravity anomalies of Costa Rica and their relationship to crustal structure and mineralization: Proceedings of the Pacific Rim Congress 1987, Queensland, Australia, p. 369-372. PDF (2.1 Mb).

Ponce, D.A., and Case, J.E., 1987, Interpretation of Geophysical maps, in U.S. Geological Survey and others, eds., Mineral resource assessment of Costa Rica : U.S. Geological Survey Miscellaneous Investigations Folio I-1865, p. 8-17.

Biehler, Shawn, Tang, R.W., Ponce, D.A., and Oliver, H.W., 1988, Bouguer gravity map of the San Bernardino Quadrangle, California: California Division of Mines and Geology Map No. 3B, scale 1:250,000.

Ponce, D.A., 1991, Gravity and magnetic anomalies in the Ely quadrangle, Nevada, and anomalies related to granitic plutons: Geology and Ore Deposits of the Great Basin, Reno/Sparks, Nev., Geological Society of Nevada, Proceedings, p. 103-106. PDF (0.6 Mb).

Ponce, D.A., 1992, Bouguer gravity map of Nevada, Ely sheet: Nevada Bureau of Mines and Geology Map 99, scale 1:250,000.

Ponce, D.A. 1993, Geophysical investigations of concealed faults near Yucca Mountain, southwest Nevada: American Nuclear Society Proceedings of the Fourth Annual International Conference on High level Waste Management, v. 1, p. 168-174. PDF (0.9 Mb).

Ponce, D.A., and Sampson, J.A., 1994, Basin geometry of the Goshute Indian Reservation, eastern Nevada and western Utah, in Thorman, C.H., Nutt, C.J., and Potter, C.J., eds., Dating of pre-Tertiary attenuation structures in Upper Paleozoic and Mesozoic rocks and the Eocene history in northeast Nevada and northwest Utah: Nevada Petroleum Society, Sixth Annual Fieldtrip Guidebook, p. 73-76. PDF (2.8 Mb).

Oliver, H.W., Ponce, D.A., and Hunter, W.C., eds., 1995, Major results of geophysical investigations at Yucca Mountain and vicinity, southern Nevada: U.S. Geological Survey Open-File Report 95-74, 184 p. Ch. 1-3 PDF (12.8 Mb).

Ponce, D.A., 1996, Interpretive geophysical fault map across the central block of Yucca Mountain, Nevada: U.S. Geological Survey Open-File Report 96-285, 15 p., 4 sheets, scale: 1:24,000. PDF (4.3 Mb).

Ponce, D.A., Hanna, W.F., Kingston, Marguerite, Simpson, S.L., and Snyder, S.L., 1996, Geophysics of the San Bernardino National Forest: U.S. Geological Survey Open-File Report 96-654, 25 p. PDF (4.5 Mb).

Ponce, D.A., 1997, Gravity data of Nevada : U.S. Geological Survey Digital Data Series DDS-42, 27 p., CD-ROM.

Ponce, D.A., 1998, Isostatic gravity map of the Beatty and western part of the Indian Springs 1:100,000-scale quadrangles, Nevada: U.S. Geological Survey Open-File Report 98-250.

Ponce, D.A. et al., 1999, Digital isostatic gravity, magnetic, and geologic maps of the Nevada Test Site and vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California: U.S. Geological Survey Open-File Report 99-554-A, B, and C.

Ponce, D.A., and Morin, R.L., 2000 Isostatic gravity map of the Battle Mountain 30 x 60 minute quadrangle, north-central Nevada: U.S. Geological Survey Geologic Investigations Map I-2687, scale 1:100,000.

John, D.A., Wallace, A.R., Ponce, D.A., Fleck, R.J, and Conrad, J.E., 2000, New perspectives on the geology and origin of the northern Nevada rift, in Cluer, J.K., Price, J.G., Struhsacker, E.M., Hardyman, R.F., and Morris, C.L., eds., Geology and Ore Deposits 2000: The Great Basin and Beyond: Geological Society of Nevada Symposium Proceedings, May 15-18, 2000, p. 127-154. PDF (1.8 Mb).

Ponce, D.A., et al., 2001, Isostatic gravity, aeromagnetic, and depth to pre-Cenozoic basement maps of the Death Valley ground-water model area, Nevada and California: U.S. Geological Survey Miscellaneous Investigations Map MF-2381-C, D, and E, scale 1:250,000.

Ponce, D.A., and Glen, J.M.G, 2002, Relationship of epithermal gold deposits to large-scale fractures in northern Nevada: Economic Geology, v. 97, no. 1, p. 3-9. PDF (7.1 Mb).

Glen, J.M.G., and Ponce, D.A., 2002, Large-scale fractures related to inception of the Yellowstone hotspot: Geology, v. 30, no. 7, p. 647-650. PDF (0.4 Mb).

Ponce, D.A., Bürgmann, Roland, Graymer, R.W., Lienkaemper, J.J., Moore, D.E., and Schwartz, David, eds., 2003, Proceedings of the Hayward Fault Workshop, Eastern San Francisco Bay Area, California, September 19-20, 2003: U.S. Geological Survey Open-File Report 03-485, 67 p.

Ponce, D.A., Hildenbrand, T.G., and Jachens, R.C., 2003, Gravity and magnetic expression of the San Leandro gabbro with implications for the geometry and evolution of the Hayward fault zone, northern California: Bulletin of the Seismological Society of America, v. 93, no. 1, 11 p. PDF (13.4 Mb).

Ponce, D.A., Simpson, R.W., Graymer, R.W., and Jachens, R.C., 2004, Gravity, magnetic, and high-precision relocated seismicity profiles suggest a connection between the Hayward and Calaveras Faults, northern California: Geochemistry Geophysics Geosystems, v. 5, no. 7, 39 p. PDF (5.1 Mb).

Ponce, D.A., Graymer, R.W., Jachens, R.C., Simpson, R.W., Phelps, G.A., and Wentworth, C.M., 2004, Three-dimensional geology of the Hayward fault and its correlation with fault behavior, northern California (abs): Eos (Transactions, American Geophysical Union), v. 85, no. 47. PDF (0.1 Mb).

Glen, J.M.G., McKee, E.H., Ludington, Steve, Ponce, D.A., Hildenbrand, T.G., Hopkins, M.J., 2004, Geophysical terranes of the Great Basin and parts of surrounding provinces: U.S. Geological Survey Open-File Report 2004-1008, 303 p.

Ponce, D.A., 2004, Geophysical methods and application, in Wallace, A.R., Ludington, Steve, Mihalasky, M.J., Peters, S.G., Theordore, T.G., Ponce, D.A., John, D.A., and Berger, B.R., Assessment of metallic mineral resources in the Humboldt River basin, northern Nevada, with a section on Platinum-Group-Element (PGE) potential of the Humboldt mafic complex, by Zientek, M.L., Sidder, G.B., and Zierenberg, R.A.: U.S. Geological Survey Bulletin 2218, p. 71-97.

Graymer, R.W., Ponce, D.A., Jachens, R.C., Simpson, R.W., and Wentworth, C.M., 2005, Three-dimensional geologic map of the Hayward Fault, northern California: Correlation of rock units with variations in seismicity, creep rate, and fault dip; Geology, v. 33, no. 6, p. 521-524, doi: 10.1130/G21435.1, 4 p. PDF (2.8 Mb).

Williams, R.A., Simpson, R.W., Jachens, R.C., Stephenson, W.J., Odum, J.K., and Ponce, D.A., 2005, Seismic-reflection evidence for a northeast-dipping Hayward Fault near Fremont, California: Implications for seismic hazard: Geophysical Research Letters, v. 32, L13301, doi:10.1029/2005GLO23113, 4 p. PDF (0.3 Mb).

Tilden, J.E., Ponce, D.A., Glen, J.M.G., and Gans, K., 2005, Gravity and magnetic data along a seismic refraction-reflection line in northeastern California and northwestern Nevada: U.S. Geological Survey Open-File Report 2005-1446, 12 p.

Ponce, D.A., Glen, J.M.G., and Tilden, J.E., 2005, Geophysical investigations of the Smoke Creek Desert and their geologic implications, northwest Nevada and northeast California: U.S. Geological Survey Open-File Report 2006-1176, 25 p.

Lerch, D.W., Klemperer, S.L., Glen, J.M.G., Ponce, D.A., Miller, E.L., and Colgan, J.P., 2006, Crustal structure of the northwestern Basin and Range Province and its transition to unextended volcanic plateaus: Geochemistry, Geophysics, and Geosystems, v. 8, no. 7, 21 p., doi:10.1029/2006GC001429. PDF (5.6 Mb).

Kucks, R.P., Hill, P.L., and Ponce, D.A., 2006, Nevada magnetic and gravity maps and data: A web site for distribution of data: U.S. Geological Survey Data Series 234.

Watt, J.T., and Ponce, D.A., 2007, Geophysical framework investigations influencing ground-water resources in east-central Nevada and west-central Utah, with a section on Geologic and geophysical basin-by-basin descriptions by Wallace, A.R., Watt, J.T., and Ponce, D.A.: U.S. Geological Survey Open-File Report 2007-1163, 40 p. 2 plates, scale 1:750,000.

Graymer, R.W., Langenheim, V.E., Simpson, R.W., Jachens, R.C., and Ponce, D.A., 2007, Relatively simple through-going fault planes at large-earthquake depth may be concealed by the surface complexity of strike-slip faults, in Cunningham, W.D., and Mann, Paul, eds., Tectonics of Strike-Slip Restraining and Releasing Bends: Geological Society of London Special Publication, v. 290, p. 189-201. doi: 10.1144/SO290.5 0305-8719/07. PDF (0.6 Mb).

Watt, J.T., Glen, J.M.G., John, D.A., and Ponce, D.A., 2008, Three-dimensional geologic model of the northern Nevada rift and the Beowawe geothermal system, north-central Nevada: Geosphere, v. 3, iss. 6, p. 667-682. PDF (2.1 Mb).

Ponce, D.A., and Glen, J.M.G., 2008, A prominent geophysical feature along the northern Nevada rift and its geologic implications, north-central Nevada: Geosphere, v. 4, iss. 1, 207-217. PDF (1.1 Mb).

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