Introduction to potential fields: gravity
Explanation of the Earth's gravitational field, emphasizing how USGS scientists measure gravity and portray these measurements on maps. Explains terminology of gravity anomaly maps and their relationship to the rock types and other geologic features. |
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Bouguer gravity and magnetic susceptibility measurements at Iliamna Volcano, Alaska 2019
Gravity data collected in 2019 at 21 sites on and around Iliamna Volcano. Data are provided in CSV and GeoTiff formats. |
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Principal facts for gravity stations and physical property measurements in the Lake Mead 30x60 minute quadrangle, Nevada and Arizona
Gravity data were collected in support of geologic mapping of the quadrangle. In addition, older gravity data were reprocessed for consistency and included, as well as 250 measurements of density and magnetic susceptibility. |
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A preliminary investigation of the structure of southern Yucca Flat, Massachusetts Mountain, and CP basin, Nevada Test Site, Nevada, based on geophysical modeling
Maps showing aeromagnetic survey results, locations of gravity station data, and discussions of processing within the report |
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A summary of data collected by the U.S. Geological Survey at Dasht-e-Nawar, Afghanistan, in support of lithium exploration, June-September 2014
USGS collaboration included providing analysis of Landsat imagery; gravity measurements of sediment and rock samples; oversight of passive seismic data collection and subsequent analysis; and analysis of the chemistry and mineralogy of subsurface samples. |
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Aeromagnetic and gravity data over the central Transantarctic Mountains (CTAM), Antarctica
Gridded and tabular magnetic data and gravity station observations. Maps depicting the data are included in the report. |
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Aeromagnetic and gravity surveys in Afghanistan
Collection of historical gravity and aeromagnetic data in Afghanistan (1911 through 1967) |
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Aeromagnetic data centered over Skelton Neve, Antarctica
Gridded aeromagnetic and ground-based gravity station data |
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Aeromagnetic, gravity anomaly, and derivative maps of the Craig and Dixon Entrance 1°x3° quadrangles of southeastern Alaska
A simplified geologic map, raw gravity and magnetic data, with derivative products including depth-to-source and rock densities, with limited interpretations of the underlying geology, structures, and mineral resources. |
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Airborne gravity survey and ground gravity in Afghanistan
Data release and processing description of airborne and ground gravity data collected over Afghanistan |
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Arizona aeromagnetic and gravity maps and data
Aeromagnetic surveys of Arizona, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Arkansas and Louisiana aeromagnetic and gravity maps and data
Aeromagnetic surveys of Arkansas and Louisiana, merged to form seamless grids across the states. Gravity anomaly data are provided as well. |
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Candidate-penetrative-fracture mapping of the Grand Canyon area, Arizona, from spatial correlation of deep geophysical features and surficial lineaments
Includes a wide variety of geological and geophysical data: geologic, aeromagnetic, and gravity maps with SLAR, DEM, TM, and NDVI imagery. |
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Colorado aeromagnetic and gravity maps and data
Aeromagnetic surveys of Colorado, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Compilation of Alaska gravity data and historical reports
Gravity measured from 1958-2005, with standard gravity reduction calculations applied to correct for latitude, elevation, topography, and isostasy. |
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Crustal Architecture Beneath the Southern Midcontinent (USA) -- Data Grids and 3D Geophysical Models
Regional grid files and 3D voxel models were used to study crustal architecture. Includes grid files consist of surface grids used in the inversions, and calculated geophysical data grids produced by the inversions. Data are provided in GOCAD voxel and GXF grid formats. |
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Digital geologic map of the Nevada Test Site and vicinity, Nye, Lincoln, and Clark Counties, Nevada, and Inyo County, California, revision 4
GIS data for geologic units and structural features, with aeromagnetic and gravity maps in PDF |
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Field estimates of gravity terrain corrections and Y2K-compatible method to convert from gravity readings with multiple base stations to tide- and long-term drift-corrected observations
Fortran code to facilitate correction and interpretation of gravity observations |
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Geologic and geophysical maps of the Death Valley ground-water model area, Nevada and California
Maps and geospatial data for (a) geology; (b) tectonics; (c) isostatic gravity anomaly; (d) aeromagnetic anomaly; (e) depth to pre-Cenozoic basement. |
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Geologic field notes and geochemical analyses of outcrop and drill core from Mesoproterozoic rocks and iron-oxide deposits and prospects of southeast Missouri
Field notes, locations, rock descriptions, and geochemical analyses from a 1988 to 1994 study to facilitate new research efforts in IOCG (iron-oxide deposits in context with other iron oxide-copper ± uranium) deposit types. |
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Geophysical and geologic maps of Mountain Pass and vicinity, California and Nevada
U.S. Geological Survey Scientific Investigations Map 3412 is a series of products that consists of geophysical and geologic maps of Mountain Pass and vicinity, California. Maps A and B (red outline in above map image) are gravity and aeromagnetic maps, re |
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Geophysical data from the Spring and Snake Valleys area, Nevada and Utah
Existing and new gravity station data and magnetometer measurements used to infer geologic structure of this area |
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Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications
Report describing detailed interpretation of geophysical survey data to draw inferences about subsurface geologic features and likely consequences for the hydrogeologic system. |
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Geophysical investigations of the Smoke Creek Desert and their geologic implications, northwest Nevada and northeast California
Gravity and aeromagnetic data analysis described in a report, with a few physical property analyses |
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Geophysical studies in the vicinity of Blue Mountain and Pumpernickel Valley near Winnemucca, north-central Nevada
Data from more than 660 gravity stations, 100 line-km of truck-towed magnetometer traverses, and 260 physical-property sites in this area. |
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Geophysical studies in the vicinity of the Warner Mountains and Surprise Valley, northeast California, northwest Nevada, and southern Oregon
Gravity station data and physical property measurements used to infer subsurface geologic structure |
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Geophysical studies of the Crump Geyser known geothermal resource area, Oregon, in 1975
Gravity map and data used to infer details of the geologic structure of the area. Surveys were conducted during or prior to 1975. |
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Georgia aeromagnetic and gravity maps and data
Aeromagnetic surveys of Georgia, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Gravity and ground magnetic data from selected traverses in the Amargosa desert and vicinity, Nevada and California
Maps of aeromagnetic data and a table of gravity station data now available for download |
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Gravity and magnetic data along a seismic refraction-reflection line in northwest Nevada and northeast California
Report with gravity station data in a spreadsheet |
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Gravity and magnetic data in the vicinity of Virgin Valley, southern Nevada
Field measurements: 548 gravity and 6484 magnetic anomaly locations, data in fixed-format text files. |
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Gravity and magnetic investigations of the Mojave National Preserve and adjacent areas, California and Nevada
Gravity station and rock physical property data used to infer geologic structure of the area |
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Gravity and magnetic studies of the eastern Mojave Desert, California and Nevada
Report with generalized interpretation and Excel tables of gravity and physical property data including an explanations of their formats. |
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Gravity and magnetic surveys over the Santa Rita fault system, southeastern Arizona
Gravity station data and hand-held magnetometer measurements with analysis and description of methodology |
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Gravity data along LARSE (Los Angeles Regional Seismic Experiment) line 2, southern California
Data taken across the San Fernando Basin and Transverse Ranges to help characterize the structure underlying this area |
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Gravity data from Dry Lake and Delamar Valleys, east-central Nevada
Principal facts (gravity observations) for 185 new stations |
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Gravity data from Newark Valley, White Pine county, Nevada
Gravity station data, isostatic anomaly map, and depth to basement map derived from geophysical inverse modeling. |
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Gravity data from the San Pedro River Basin, Cochise County, Arizona
321 observed gravity values with free-air, simple Bouguer, and complete Bouguer anomaly values; high-precision relative-gravity surveys repeated over time, useful for aquifer-storage-change monitoring; and absolute gravity values for use as base stations. |
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Gravity Data in the eastern Mojave Desert, California and Nevada
Nearly 10,000 measurements of gravity governed by consistent parameters and adjustments to account for all of the common physical phenomena that affect these measurements. Data are provided in CSV and shapefile formats. |
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Gravity data in the Wet Mountains area, southcentral Colorado, 2021 to 2022
Data from 261 measurements of gravity measured in this area to compliment newly collected airborne magnetic data for surface and subsurface geologic mapping and to aid the subsurface interpretation of mapped and concealed Ediacaran-Ordovician alkaline intrusions related to rare earth element (REE) mineralization. Data are provided in CSV format. |
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Gravity investigations of the Chickasaw National Recreation Area, south-central Oklahoma
Gravity anomaly with physical property measurements in support of structural geologic investigation |
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Gravity map and data of the eastern half of the Big Bear Lake, 100,000 scale quadrangle, California, and analysis of the depths of several basins
Data on the southern portion of the Marine Corps Air Ground Combat Center (MCAGCC) Twentynine Palms and the Yucca Valley-Joshua Tree-Twentynine Palms area and presents the map and basin analyses. |
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Gravity map of Nevada
Gravity observations throughout Nevada combined to provide a consistent collection of point measurements and generate maps. |
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Gravity studies of Cave, Dry Lake, and Delamar Valleys, East-Central Nevada
Gravity surveys and structural interpretation of anomaly data in support of ground-water studies |
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Gravity study of the Guernsey landfill site, Guernsey, Wyoming
Gravity measurements and surveyed topography data |
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Gravity survey and interpretation of Fort Irwin and vicinity, Mojave Desert, California
Provides a view of alluvial basins, shapes, areal extents, and approximate thicknesses of alluvial fill. Gravity field is separated into density variations in the basement complex and distribution of Cenozoic fill with its 3-D thickness representation. |
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Gravity, magnetic, and physical property data in the Smoke Creek Desert area, Northwest Nevada
Aerial, truck-towed, and hand-held magnetometer measurements, gravity station data, and sample density and magnetic susceptibility measures |
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Guide to geophysical data for the northern Rocky Mountains and adjacent areas, Idaho, Montana, Washington, Oregon, and Wyoming
Mathematical analysis of gravity and aeromagnetic data, with basic and derived grids and vector data and maps. |
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Helicopter magnetic and gravity gradiometry survey over the Pea Ridge iron mine and surrounding area, southeast Missouri, 2014
High resolution magnetic and gravity gradient data were collected in this area centered on the Pea Ridge iron oxide-apatite rare-earth element deposit. Flight lines spacing was 400 m, nominal flight height above terrain was 80 m. Includes flight line data for the gravity gradiometry survey and a report describing the survey parameters, field operations, quality control and data reduction procedures. Data are provided in CSV format. |
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High-resolution gravity and seismic-refraction surveys of the Smoke Tree Wash area, Joshua Tree National Park, California
These data were acquired to determine the thickness of valley-fill deposits and to delineate geologic structures that might influence groundwater flow beneath this area. |
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Identification of mineral resources in Afghanistan-Detecting and mapping resource anomalies in prioritized areas using geophysical and remote sensing (ASTER and HyMap) data
Using geophysical and remote-sensing data, previously unrecognized targets of potential mineralization were identified; this report shows those targets along with the evidence for their potential. |
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Illinois, Indiana, and Ohio magnetic and gravity maps and data
Aeromagnetic surveys of Illinois, Indiana, and Ohio, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Iowa magnetic and gravity maps and data
Aeromagnetic surveys of Iowa, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Isostatic gravity map of Mountain Pass and vicinity, California and Nevada
Gravity investigations of Mountain Pass and vicinity were begun as part of an effort to study regional crustal structures as an aid to understanding the geologic framework and mineral resources of the eastern Mojave Desert. The study area, which straddles |
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Isostatic gravity map of the Las Vegas 30'x60' quadrangle, California and Nevada
Includes principal facts (gravity observations) for 2,506 stations. |
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Isostatic gravity map of the Monterey 30x60 minute quadrangle and adjacent areas, California
Gravity measurements to support regional mapping and hydrologic studies |
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Isostatic gravity map of the Point Sur 30 x 60 quadrangle and adjacent areas, California
Includes 802 gravity station measurements with isostatic, free-air, simple and complete Bouguer anomalies, and terrain correction. |
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Isostatic gravity map with geology of the Santa Ana 30'x60' quadrangle, southern California
Contour map of isostatic gravity anomaly with bedrock geology, and principal facts for the gravity stations as a separate data file. |
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Isostatic gravity map with simplified geology of the Los Angeles 30x60 minute Quadrangle
Includes detailed point measurements of gravity |
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Isostatic residual gravity anomaly grid for the conterminous US
Measurements of the gravitational field vary slightly from place to place due to the composition and structure of Earth's crust. This digital grid describes the isostatic residual gravity anomaly for the conterminous US. |
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Magnetic and gravity anomaly maps of West Virginia
Aeromagnetic surveys of West Virginia, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Magnetic and gravity studies of Mono Lake, east-central, California
Magnetic and gravity investigations were undertaken in Mono Lake to study regional crustal structures and to aid in understanding the geologic framework, in particular regarding potential geothermal resources and volcanic hazards throughout Mono Basin. |
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Michigan magnetic and gravity maps and data
Best available public-domain aeromagnetic and gravity data in the State of Michigan merged into composite grids. Magnetic data compiled from 25 separate magnetic surveys. |
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Missouri aeromagnetic and gravity maps and data
Aeromagnetic surveys of Missouri, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Montana aeromagnetic and gravity maps and data
Aeromagnetic surveys of Montana, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Nebraska, Kansas, and Oklahoma aeromagnetic and gravity maps and data
Aeromagnetic surveys of Nebraska, Kansas, and Oklahoma, merged to form seamless grids across the states. Gravity anomaly data are provided as well. |
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Nevada magnetic and gravity maps and data
Aeromagnetic surveys of Nevada, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats. |
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New England states aeromagnetic and gravity maps and data
Aeromagnetic surveys of New England, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats. |
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New Jersey aeromagnetic and gravity maps and data
Aeromagnetic surveys of New Jersey, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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New Mexico aeromagnetic and gravity maps and data
Aeromagnetic surveys of New Mexico, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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North Dakota aeromagnetic and gravity maps and data
Aeromagnetic surveys of North Dakota, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Oregon magnetic and gravity maps and data
Aeromagnetic surveys of Oregon, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Preliminary gravity and magnetic data of the Lake Pillsbury northern Coast Ranges, California
Report with excel tables showing principal facts (gravity observation data) and ground magnetic data. |
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Preliminary isostatic gravity map of Joshua Tree National Park and vicinity, southern California
Map with excel tables showing principal facts (gravity observation data). |
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Preliminary isostatic gravity map of the Sonoma Volcanic field and vicinity, Sonoma and Napa counties, California
Gravity station data from three separate surveys |
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Preliminary isostatic residual gravity anomaly map of Paso Robles 30 x 60 minute quadrangle, California
Includes 2,604 (170 not previously published) gravity station measurements with calculations of free-air, simple Bouguer, complete Bouguer, and isostatic anomaly. |
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Preliminary potential-field constraints on the geometry of the San Fernando basin, southern California
Results of mathematical modeling of gravity and magnetic anomaly data to infer the geologic structure of the area |
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Principal facts and an approach to collecting gravity data using near-real-time observations in the vicinity of Barstow, California
The purpose of the data collection was to investigate possible changes in gravity across mapped Quaternary faults and to improve regional gravity coverage, adding to the existing national gravity database. |
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Principal facts for 408 gravity stations in the vicinity of the Talkeetna Mountains, south-central Alaska
Data collected as part of a geological and geophysical framework study |
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Principal facts for 463 gravity stations in the vicinity of Tangle Lakes, east-central Alaska
New gravity stations combined here with older measurements taken by other USGS survey trips |
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Principal facts for gravity data along the Hayward fault and vicinity, San Francisco Bay area, northern California
Data and associated physical property measurements were collected as part of on-going studies to help determine the earthquake hazard potential of major faults within the San Francisco Bay region |
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Principal facts for gravity data collected in South Dakota
Gravity anomaly measurements throughout the state |
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Principal facts for gravity data collected in the southern Albuquerque Basin area and a regional compilation, central New Mexico
New data incorporated with existing data complete overall coverage of the basin, one of the largest associated with the Rio Grande rift. |
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Principal facts for gravity data collected in Wisconsin
Gravity anomaly surveys of Wisconsin, both separately by survey and combined. |
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Principal facts for gravity profiles collected near the Osgood Mountains and the Slumbering Hills, north-central Nevada
Gravity station data for several surveys of this area. |
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Principal facts for gravity stations collected in 2010 from White Pine and Lincoln Counties, east-central Nevada
Gravity observations from 99 locations in this area, with free-air, isostatic, and complete Bouguer anomalies. |
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Principal facts for gravity stations in the Antelope Valley-Bedell Flat area, west-central Nevada
Physical property data for selected rock samples accompany these gravity observations |
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Principal facts for gravity stations in the Dry Valley area, West-Central Nevada and east-central California
Gravity measurements used for determining geologic structure to aid in understanding ground-water flow |
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Principal facts for gravity stations in the vicinity of Coyote Spring valley, Nevada, with initial gravity modeling results
Gravity study to help define the shapes of young basins filled with Cenozoic rocks and alluvium, and to identify any possible faults within these basins that might influence the movement of groundwater. |
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Principal facts for gravity stations in the vicinity of San Bernardino, southern California
Gravity measurements collected to help define the characteristics of the Rialto-Colton fault, with rock properties such as lithology, magnetic susceptibility and density. |
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Principal facts of gravity data collected in and around the eastern Adirondack highlands, northern New York
Gravity data were collected in 2016 and 2017 to assist in mapping subsurface geology in this area, where there are numerous iron-oxide apatite deposits which contain rare-earth elements. Data are provided in CSV format. |
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Principal facts of gravity data from the Stillwater Complex, Montana, 2013-2014 and 2020
Gravity measurements were collected during 2013, 2014, 2020 at 168 sites on and around the Stillwater layered mafic complex. Data are provided in CSV and shapefile formats. |
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Principal facts of gravity data in the southern San Luis Basin, northern New Mexico
Gravity data were collected from 2006 through 2015 to assist in mapping subsurface geology in this area. Includes principal facts for 567 new gravity stations that were acquired to fill in gaps in previously-available gravity data. Data are provided in CSV format. |
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Principal facts of regional gravity data in northeast Iowa
Gravity data collected 2016 through 2018 at 1080 locations to assist in mapping subsurface geology in northeastern Iowa. Data are provided in CSV format. |
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Principal facts of regional gravity data in the central Upper Peninsula, Michigan, and northeastern Wisconsin
Gravity data collected from 2016 through 2019 to assist in mapping surface and subsurface geology in this area. Data are provided in CSV and shapefile formats. |
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Resource potential and geology of the Grand Mesa, Uncompahgre, and Gunnison (GMUG) National Forests and vicinity, Colorado
Multi-chapter report combining geologic, geochemical, geophysical, and mining activity data. Downloadable data for coal resource information only. |
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Results of gravity fieldwork conducted in March 2008 in the Moapa Valley region of Clark County, Nevada
Study aids understanding of local geologic structure and ground-water flow, includes principal facts for 266 gravity stations and physical properties of representative rock samples. |
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South Carolina aeromagnetic and gravity maps and data
Aeromagnetic surveys of South Carolina, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats. |
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South Dakota aeromagnetic and gravity maps and data
Aeromagnetic surveys of South Dakota, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Summary of geophysical investigations of the Death Valley regional water-flow modeling project, Nevada and California
Magnetic and gravity anomaly and structure contour data |
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Texas magnetic and gravity maps and data
Aeromagnetic surveys of Texas, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats. |
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The Longview/Lakeview barite deposits, southern National Petroleum Reserve, Alaska (NPRA); potential-field models and preliminary size estimates
Geophysical modeling used to study mineral deposit geometry. Includes 227 new gravity stations. |
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Updated aeromagnetic and gravity anomaly compilations and elevation-bathymetry models over Lake Superior
New gravity and magnetic compilations and elevation-bathymetry models compiled for the Lake Superior region, providing continuous sets of observations for geologic interpretations spanning political boundaries such as US States and the US-Canada border where bedrock geology is largely concealed beneath glacial deposits and surface water. Data are provide in GeoTiff, GXF, and CSV (for gravity station data) formats. |
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Utah aeromagnetic and gravity maps and data
Aeromagnetic surveys of Utah, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Virginia aeromagnetic and gravity maps and data
Aeromagnetic surveys of Virginia, merged to form seamless grids across the state. Gravity anomaly data are provided as well. Data provided in a variety of formats. |
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Washington aeromagnetic maps and data:
Aeromagnetic surveys of Washington state, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Whole-rock and sulfide-mineral geochemical data for samples from volcanogenic massive sulfide deposits of the Bonnifield district, east-central Alaska
The data consist of major- and trace-element whole-rock geochemical analyses and major- and trace-element analyses of sulfide minerals determined by electron microprobe and laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) techniques |
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Wisconsin aeromagnetic and gravity maps and data
Aeromagnetic surveys of Wisconsin, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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Wyoming aeromagnetic and gravity maps and data
Aeromagnetic surveys of Wyoming, merged to form seamless grids across the state. Gravity anomaly data are provided as well. |
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