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This data release provides digital flight-line and gridded data for a high-resolution airborne magnetic and radiometric survey over the region surrounding the Wet Mountains of southern Colorado, including parts of Custer and Fremont Counties. Data for this survey were collected by Sander Geophysics Limited International (SGL) under contract with the USGS. The survey was flown in June and July of 2021 using a helicopter equipped with a magnetometer mounted in a stinger extending from the nose of the aircraft and a gamma-ray spectrometer stowed onboard. The helicopter pilots followed pre-planned flight paths in a grid-like pattern, with east-west lines spaced 150 meters apart and north-south lines spaced 1,000 meters...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Mineral Resources"], AASG, Antelope Creek, Arkansas River, Association of State Geologists, All tags...
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Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area. Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. RESOLVE frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects...
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Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2018 to February 2019 along 16,816 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. Resolve frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that...
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This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. The survey represents the first airborne geophysical survey conducted as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort between the USGS, the Association of American State Geologists, and other Federal, State, and private sector organizations to improve our knowledge of the geologic framework of the United States. Data for this survey were collected by Terraquest, Ltd. under contract with the USGS using a fixed wing aircraft with magnetometers...
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Airborne magnetic data are provided here as part of the data release, 'Airborne magnetic and radiometric survey, Virginia and North Carolina Fall Zone, 2021.' This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the total magnetic intensity. The contractor report is available on the parent page.
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Amelia County, Association of State Geologists, Bertie County, Brunswick County, All tags...
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Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2019 to March 2020 along 24,030 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different airborne sensors: the CGG Canada Services, Ltd. TEMPEST time-domain AEM instrument that is used to map subsurface geologic structure at depths up to 300 meters (m), depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects the...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags...
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This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey includes airborne geophysical data collected as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort between the USGS, the Association of American State Geologists, and other Federal, State, and private sector organizations to improve our knowledge of the geologic framework of the United States. Data for this survey were collected by EON Geosciences under contract with the USGS using a fixed wing aircraft with a magnetometer mounted in...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: AASG, Association of American State Geologists, Ballard County, Caldwell County, Carlisle County, All tags...
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This release includes aeromagnetic data collected via low-altitude helicopter flown over northeastern Washington State, centered over the town of Republic, Washington. The data were acquired between September 26, 2022 and August 21, 2023 by Precision Geosurveys, Inc. of Langley, British Columbia and processed by EDCON-PRJ, Inc. of Lakewood, Colorado, contracted by the U.S. Geological Survey and funded through the Earth Mapping Resources Initiative (EarthMRI). The survey includes gridded data from target altitude of 80-100 meters above ground level, subject to aircraft climb and descent limitations. Primary transverse flight lines were flown in the east-west direction and spaced 200 meters apart. Tie lines were flown...
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Airborne geophysical surveys were acquired in March 2018 and May 25 through August 7, 2021 using a helicopter-based platform. These surveys were collected along 10,706 line-kilometers (line-km) within selected areas of the Mississippi Alluvial Plain (MAP) and the Chicot Aquifer System in the southeastern United States. The airborne geophysical surveys include electromagnetic, magnetic, and radiometric sensor data collected in rivers and levees throughout the two areas to evaluate groundwater and surface-water interaction, riverine ecosystems, and infrastructure. This data release contains three child items that provide: Minimally processed (raw) data supplied by the airborne contractor (Xcalibur Multiphysics)...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: "Geomorphology"], "Hydrology", "Sedimentology", "Stratigraphy", "Water Resources", All tags...
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Airborne magnetic data are provided here as part of the data release, "Airborne magnetic and radiometric survey, Munsungun Region, northern Maine, 2021." This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the anomalous magnetic field. The contractor report is available on the parent page. Data for this survey were collected and processed by Sander Geophysics under contract with the USGS as part of the Earth Mapping Resources Initiative (Earth MRI) using a fixed wing aircraft with a magnetometer mounted in a tail stinger and a fully calibrated gamma ray spectrometer, data were collected along northwest-southeast flight lines spaced 250 meters (m) apart...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Allagash Lake, Aroostook County, Aroostook River, Bever Brook, Big Machias Lake, All tags...
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Airborne magnetic data are provided here as part of the data release "Airborne magnetic and radiometric survey, western Arkansas, 2022." This website includes the processed aeromagnetic data provided in an ASCII .csv file and geoTIFF images showing the total magnetic intensity and derivative products, including the first and second vertical derivatives, residual magnetics, and reduced-to-pole magnetics.
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This data release includes estimates of potassium (K), equivalent uranium (eU), and equivalent thorium (eTh) for the conterminous United States derived from the U.S. Geological Survey's national airborne radiometric data compilation (Duval and others, 2005). Airborne gamma ray spectrometry (AGRS) measures the gamma-rays that are emitted from naturally occurring radioactive isotopes found in rocks and soil, the most abundant of which are potassium (K40), uranium (U238), and thorium (Th232). Radiometric data can aid in exploration of critical mineral resources, including deposits of barium, fluorine, titanium, beryllium, niobium, rare-earth elements, and uranium. There is also growing interest in using radiometric...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags...
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This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of northwest Arkansas. The airborne geophysical survey was jointly funded by the USGS National Cooperative Geologic Mapping Program and the Earth Mapping Resource Initiative and was designed to meet the complimentary needs related to geologic mapping and mineral resource research. The survey covers an irregular area 225 by 110 kilometer over the transition between the Ouachita and Ozarks Plateau physiographic provinces and includes 67,614 line-kilometers of magnetic and radiometric data. Data were collected from a fixed-wing aircraft flown at mean terrain clearance of 167 meters (m) above topography...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AASG, Association of American State Geologists, Barry County, Baxter County, Boone County, All tags...
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This data release provides digital flight line data for a high-resolution airborne magnetic and radiometric survey over Charleston, South Carolina and the surrounding region. These data were collected to better understand earthquake hazards in the Charleston seismic zone by imaging structural features in the crystalline basement and to image heavy mineral sands containing titanium, zirconium, and rare earth elements using radiometric data (gamma spectrometry), which is sensitive to thorium in monazite. This survey represents a collaborative effort by the U.S. Geological Survey (USGS) Earthquake Hazards Program, Mineral Resources Program, National Cooperative Mapping Program, and Earth Mapping Resource Initiative...
Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Berkeley County, Charleston, Charleston County, Clarendon County, Colleton County, All tags...
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Airborne magnetic gradiometry data are provided here as part of the data release, "Airborne magnetic and radiometric survey, Charleston, South Carolina and surrounds, 2019." This data release includes the processed aeromagnetic horizontal gradiometry flight line data provided in an ascii .csv file and a geoTIFF image showing the magnetic intensity in nanoTeslas (nT). The contractor report and deliverables package are available on the parent page, https://doi.org/10.5066/P9EWQ08L. These data were collected as part of a high-resolution airborne magnetic and radiometric survey over Charleston, South Carolina and the surrounding region with a goal of better understanding earthquake hazards in the Charleston seismic...
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The U.S. Geological Survey (USGS) and the Department of Energy (DOE) have collaborated to acquire high-resolution airborne magnetic and radiometric data, over northern and western Nevada and eastern California, to support geologic and geophysical mapping and modeling that will assist geothermal and critical mineral studies. The surveys, referred to as GeoDAWN (Geoscience Data Acquisition for Western Nevada), span areas of major resource potential associated with the Walker Lane and western Great Basin. They were conducted under the USGS’s Earth Mapping Resource Initiative (EarthMRI), with support from the DOE’s Geothermal Technologies Office (GTO), and involved acquisition of aeroradiometric and aeromagnetic data...
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Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area. Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. RESOLVE frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects...
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This publication provides digital flight line data for a high-resolution magnetic and radiometric survey over an area of southeast Illinois, western Kentucky, and southern Indiana. The survey includes airborne geophysical data collected as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort between the USGS, the Association of American State Geologists, and other Federal, State, and private sector organizations to improve our knowledge of the geologic framework of the United States. Data for this survey were collected by EON Geosciences under contract with the USGS using a fixed wing aircraft with a magnetometer mounted in...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Association of American State Geologists, Ballard County, Caldwell County, Carlisle County, All tags...
Airborne magnetic gradiometry data are provided here as part of the data release, "Airborne magnetic and radiometric survey, Columbia, South Carolina and surrounds, 2020." This website includes the processed aeromagnetic data provided in an ascii .csv file and a geoTIFF image showing the magnetic field intensity. The contractor report is available on the parent page. These data were collected as part of a high-resolution airborne magnetic and radiometric survey over Columbia, South Carolina and the surrounding region immediately northwest of an airborne magnetic and radiometric survey collected near Charleston, South Carolina in 2019 (Shah, 2020). Goals included imaging heavy mineral sands containing titanium,...
Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Aiken County, Bamberg County, Barnwell County, Calhoun County, Clarendon County, All tags...


map background search result map search result map AEM inverted resistivity models Airborne EM, magnetic, and radiometric survey data AEM inverted resistivity models Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019 Bayesian modeling of NURE airborne radiometric data for the conterminous United States: predictions and grids Hicks Dome Magnetic Data Hicks Dome Radiometric Data Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020 Airborne magnetic and radiometric survey, Charleston, South Carolina and surrounds, 2019 Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020 Airborne magnetic flight line data, Charleston, South Carolina and surrounds, 2019 Airborne electromagnetic, magnetic, and radiometric surveys of the Mississippi Alluvial Plain and Chicot Aquifer System, March 2018 and May - August 2021 Airborne magnetic flight line data, Columbia, South Carolina and surrounds, 2020 Airborne magnetic and radiometric survey of the Wet Mountains and surrounding region, Custer and Fremont Counties, south-central Colorado, 2021 Airborne magnetic data, Munsungun region in northern Maine, 2021 Airborne magnetic flight line data, Virginia and North Carolina Fall Zone, 2021 Airborne magnetic flight line data, western Arkansas, 2022 Airborne radiometric flight line data, western Arkansas, 2022 GeoDAWN: Airborne magnetic and radiometric surveys of the northwestern Great Basin, Nevada and California High-resolution airborne magnetic survey of the Republic Graben, Okanogan and Kettle metamorphic core complexes, Kootenay Arc and surrounding regions, Northeastern Washington AEM inverted resistivity models Airborne EM, magnetic, and radiometric survey data Airborne magnetic and radiometric survey of the Wet Mountains and surrounding region, Custer and Fremont Counties, south-central Colorado, 2021 Airborne magnetic flight line data, western Arkansas, 2022 Airborne radiometric flight line data, western Arkansas, 2022 Hicks Dome Magnetic Data Hicks Dome Radiometric Data Airborne magnetic and radiometric survey, Charleston, South Carolina and surrounds, 2019 Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019 Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020 Airborne magnetic flight line data, Charleston, South Carolina and surrounds, 2019 Airborne magnetic data, Munsungun region in northern Maine, 2021 Airborne magnetic flight line data, Virginia and North Carolina Fall Zone, 2021 Airborne magnetic flight line data, Columbia, South Carolina and surrounds, 2020 High-resolution airborne magnetic survey of the Republic Graben, Okanogan and Kettle metamorphic core complexes, Kootenay Arc and surrounding regions, Northeastern Washington GeoDAWN: Airborne magnetic and radiometric surveys of the northwestern Great Basin, Nevada and California AEM inverted resistivity models Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020 Airborne electromagnetic, magnetic, and radiometric surveys of the Mississippi Alluvial Plain and Chicot Aquifer System, March 2018 and May - August 2021 Bayesian modeling of NURE airborne radiometric data for the conterminous United States: predictions and grids