David Ponce
Dave Ponce is a Research Geophysicist with the Geology, Minerals, Energy, and Geophysics Science Center in Menlo Park, California. His work focuses on the application of gravity, magnetic, and other geophysical methods to address a variety of earth science issues including earthquake hazards and mineral resources.
David Ponce is a senior Research Geophysicist with the U.S. Geological Survey (USGS) in Menlo Park, California, with over 30 years of experience. He is a member and past Chief of the Geophysical Unit of Menlo Park (GUMP), a potential-field (gravity and magnetics), paleomagnetic, and electromagnetic methods research group. He received a B.S. and M.S. in Geology/Geophysics from San Jose State University, California. His primary areas of interest are geophysical investigations of the San Francisco Bay Area and the Basin and Range Province of the western U.S. These studies utilize geophysical methods to understand geology and tectonophysics; volcano and earthquake hazards; and water, mineral, and energy resources. He has authored more than 250 abstracts, reports, maps, or articles.
Dave is also a member of the American Geophysical Union, Geological Society of America, and Society of Exploration Geophysicists and is a recipient of the Superior Service Award from the Department of Interior.
Professional Experience
Research Geophysicist, Geophysics Unit of Menlo Park (GUMP), Geology, Minerals, Energy and Geophysics Science Center (GMEG)
Project Chief, REE deposits in the southeast Mojave Desert, California
Principal Investigator, Geophysical investigations of the Calaveras, Hayward, and Rodgers Creek Faults, California and implications on earthquake hazards.
Education and Certifications
M.S., Geophysics/Geology, San Jose State University, 1981
B.S., Geophysics/Geology, San Jose State University, 1976
Affiliations and Memberships*
American Geophysical Union
Geological Society of America
Society of Exploration Geophysicists
Science and Products
Digital Geologic Map of the Nevada Test Site and Vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California
Hydrogeologic framework and ground-water levels, 1982 and 1996, middle Humboldt River basin, north-central Nevada
Isostatic gravity map of the Beatty and the western part of the Indian Springs 1:100,000-scale quadrangles, Nevada
Drill-hole lithology map of the Winnemucca 1:250,000-scale quadrangle, Nevada
Gravity data of Nevada
Principal facts for about 500 gravity stations in part of the Humboldt River basin, Lovelock and Winnemucca quadrangles, Nevada
Interpretive geophysical fault map across the central block of Yucca Mountain, Nevada
Geophysics of the San Bernardino National Forest, Southern California
Gravity and magnetic anomalies in the vicinity of Yucca Mountain and their geologic implications
Gravity and magnetic investigations of the Ghost Dance and Solitario Canyon faults, Yucca Mountain, Nevada
Geophysical expression of the Ghost Dance fault, Yucca Mountain, Nevada
Depth to pre-Cenozoic basement in Southwest Nevada
Science and Products
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Filter Total Items: 119
Digital Geologic Map of the Nevada Test Site and Vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California
This digital geologic map of the Nevada Test Site (NTS) and vicinity, as well as its accompanying digital geophysical maps, are compiled at 1:100,000 scale. The map compilation presents new polygon (geologic map unit contacts), line (fault, fold axis, metamorphic isograd, dike, and caldera wall) and point (structural attitude) vector data for the NTS and vicinity, Nye, Lincoln, and Clark Counties,AuthorsJanet L. Slate, Margaret E. Berry, Peter D. Rowley, Christopher J. Fridrich, Karen S. Morgan, Jeremiah B. Workman, Owen D. Young, Gary L. Dixon, Van S. Williams, Edwin H. McKee, David A. Ponce, Thomas G. Hildenbrand, W. C. Swadley, Scott C. Lundstrom, E. Bartlett Ekren, Richard G. Warren, J. C. Cole, Robert J. Fleck, Marvin A. Lanphere, David A. Sawyer, Scott A. Minor, Daniel J. Grunwald, Randell J. Laczniak, Christopher M. Menges, James C. Yount, Angela S. JaykoHydrogeologic framework and ground-water levels, 1982 and 1996, middle Humboldt River basin, north-central Nevada
The Humboldt River Basin encompasses an area of nearly 17,000 mi2 in north-central Nevada; it is the only major river basin that begins and ends entirely within the State (fig. 1). The study area for this report is the middle Humboldt River Basin, which consists of 14 hydrographic areas that encompass 7,400 mi2 (fig. 1 and table 1). The principal tributaries to the Humboldt River in the study arAuthorsRussell W. Plume, David A. PonceIsostatic gravity map of the Beatty and the western part of the Indian Springs 1:100,000-scale quadrangles, Nevada
No abstract available.AuthorsD. A. PonceDrill-hole lithology map of the Winnemucca 1:250,000-scale quadrangle, Nevada
No abstract available.AuthorsD. A. Ponce, B. C. MoringGravity data of Nevada
Gravity data for the entire state of Nevada and adjacent parts of California, Utah, and Arizona are available on this CD-ROM. About 80,000 gravity stations were compiled primarily from the National Geophysical Data Center and the U.S. Geological Survey. Gravity data was reduced to the Geodetic Reference System of 1967 and adjusted to the Gravity Standardization Net 1971 gravity datum. Data were prAuthorsDavid A. PoncePrincipal facts for about 500 gravity stations in part of the Humboldt River basin, Lovelock and Winnemucca quadrangles, Nevada
No abstract available.AuthorsE. B. Jewel, D. A. Ponce, R. L. MorinInterpretive geophysical fault map across the central block of Yucca Mountain, Nevada
No abstract available.AuthorsD. A. PonceGeophysics of the San Bernardino National Forest, Southern California
No abstract available.AuthorsD. A. Ponce, W. F. Hanna, M.J. Kingston, S. L. Simpson, S. L. SnyderGravity and magnetic anomalies in the vicinity of Yucca Mountain and their geologic implications
No abstract available.AuthorsD. A. Ponce, H. W. OliverGravity and magnetic investigations of the Ghost Dance and Solitario Canyon faults, Yucca Mountain, Nevada
No abstract available.AuthorsD. A. Ponce, V. E. LangenheimGeophysical expression of the Ghost Dance fault, Yucca Mountain, Nevada
Gravity and ground magnetic data collected along surveyed traverses across Antler and Live Yucca Ridges, on the eastern flank of Yucca Mountain, Nevada, reveal small-scale faulting associated with the Ghost Dance and possibly other faults. These studies are part of an effort to evaluate faulting in the vicinity of a potential nuclear waste repository at Yucca Mountain.AuthorsD. A. Ponce, V. E. LangenheimDepth to pre-Cenozoic basement in Southwest Nevada
An iterative procedure based on gravity data, surface geology, and an estimated density-depth function was used to estimate the depth to pre-Cenozoic basement at Yucca Mountain and vicinity.AuthorsV. E. Langenheim, D. A. Ponce - News
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government