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Airborne magnetic and radiometric survey of the Wet Mountains and surrounding region, Custer and Fremont Counties, south-central Colorado, 2021 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... Canon City, Colorado, Custer County, Earth Mapping Resources Initiative, EarthMRI, Economic Geology, Fremont County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Grape Creek, MRP, Mineral Resources, Mineral Resources Program, National Cooperative Geologic Mapping Program, North Hardscrabble Creek, Oak Creek, Rosita Hills, Royal Gorge, Sedimentology, Sliver Cliff, Structural Geology, Tallahassee Creek, Texas Creek, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), United States, United States of America, Westcliffe, Wet Mountain Valley, Wet Mountains, ["Geophysics", aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), potassium, south-central Colorado, thorium, uranium, Fewer tags Airborne Geophysical Surveys over the Eastern Adirondacks, New York State Airborne geophysical surveys were conducted in the eastern Adirondacks from Dec. 7, 2015 - Dec. 21, 2015, by Goldak Airborne Surveys. The area was flown along a draped surface with a nominal survey height above ground of 200 meters. The flight line spacing was 250 meters for traverse lines and 2500 meters for control lines. Here we present downloadable magnetic and radiometric (gamma spectrometry) data from those surveys as image (Geotiff) and flight line data (csv format). Background The Eastern Adirondacks region was known for iron mining in the 1800's and 1900's but it also contains deposits of rare earth minerals. Rare earth minerals are used in advanced technology such as in cell phones, rechargeable batteries... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Adirondack Mountains, CGGSC, Crustal Geophysics and Geochemistry Science Center, Essex County, Geophysics, All tags... MRP, Mineral Resources, Mineral Resources Program, New York, Remote Sensing, USGS Science Data Catalog (SDC), United States, aeromagnetic maps, aeromagnetic surveying, aeroradiometric surveying, airborne magnetics, economy, geologic mapping, geologic maps, geoscientificInformation, magnetic anomaly maps, magnetic field (earth), magnetics, mineral resources, mineral resources, subsurface imaging, subsurface maps, Fewer tags Airborne magnetic and radiometric survey, southeast Missouri and western Illinois, 2018-2019 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... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Earth Mapping Resources Initiative, EarthMRI, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, All tags... Ironton, MRP, Mineral Resources Program, Missouri, USGS Science Data Catalog (SDC), aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, none, potassium, thorium, uranium, Fewer tags Radiometric Data of Airborne Geophysical Surveys over the Eastern Adirondacks, New York State Airborne geophysical surveys were conducted in the eastern Adirondacks from Dec. 7, 2015 - Dec. 21, 2015, by Goldak Airborne Surveys. The area was flown along a draped surface with a nominal survey height above ground of 200 meters. The flight line spacing was 250 meters for traverse lines and 2500 meters for control lines. Here we present downloadable radiometric (gamma spectrometry) data from those surveys as flight line data (csv format) or Geotiff images. Line data (EAdirondacksSpec.csv) are presented as comma separated values with the following definitions (see technical report for details): LINE: Flight line number DATE: YYYY/MM/DD TIME: Time (UTM, 24-hour) hh:mm:ss LONG: Longitude, WGS84 (degrees) LAT:... Categories: Data; Tags: Adirondack Mountains, Essex County, New York, United States, aeromagnetic maps, All tags... aeromagnetic surveying, aeroradiometric surveying, airborne magnetics, economy, geologic mapping, geologic maps, geoscientificInformation, magnetic anomaly maps, magnetic field (earth), magnetics, mineral resources, mineral resources, subsurface imaging, subsurface maps, Fewer tags High-resolution airborne magnetic survey of the Republic Graben, Okanogan and Kettle metamorphic core complexes, Kootenay Arc and surrounding regions, Northeastern Washington 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... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Earth Mapping Resources Initiative, EarthMRI, Economic Geology, GMEG, Geology, Minerals, Energy, and Geophysics Science Center, All tags... MRP, Mineral Resources, Mineral Resources Program, NCGMP, National Cooperative Geologic Mapping Program, Sedimentology, Structural Geology, U.S. Geological Survey, USGS, United States, Washington, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), potassium, thorium, uranium, Fewer tags Airborne electromagnetic and magnetic survey data, East Poplar Oil Field and surrounding area, October 2014, Fort Peck Indian Reservation, Montana Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2014 in a 553-square-kilometer area that includes the East Poplar oil field on the Fort Peck Indian Reservation in northeastern Montana, USA. Data surround the city of Poplar and extend south into the Missouri River floodplain. Data were acquired with the SkyTEM301 transient electromagnetic helicopter-borne system together with a Geometrics G-822 magnetometer. The AEM average depth of investigation is about 80 m. The survey was flown at a nominal flight height of 30 m above terrain along north-south oriented flight lines; the majority of lines had a nominal spacing of 200 m with a sub-block area in the central portion of the oil... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CGGSC, City of Poplar, Crustal Geophysics and Geochemistry Science Center, East Poplar Oil Field, Energy Resources Program, All tags... Fort Peck Indian Reservation, Fort Peck Office of Environmental Protection, Missouri River, Montana, Poplar River, Roosevelt County, STEPPE, Science Team about Energy and Plains and Potholes Environments, USGS Science Data Catalog (SDC), WY-MTWSC, Williston Basin, Wyoming-Montana Water Science Center, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, magnetic surveying, natural gas resources, oil and gas production, oil resources, petroleum, produced waters, resistivity, salinity, Fewer tags Airborne electromagnetic and magnetic survey data in Big Cypress National Preserve and Everglades National Park, 2001 Airborne electromagnetic (AEM) and magnetic survey data, a total of 3065 line-kilometers, were collected during October 2001 in two survey blocks and four repeated lines from an earlier survey. The largest area, Block 1 totaling 2692.2 line-kilometers was flown over Big Cypress Preserve, smaller Block 2 along 277.1 line-kilometers was flown near the town of Homestead, and four lines totaling 95.2 line-kilometers were flown over Everglades National Park. The lines over Everglades National Park repeated the path of four lines from an earlier AEM survey collected in December 1994 (released under USGS Open-File Report 02-101 downloadable at https://pubs.er.usgs.gov/publication/ofr02101). Electromagnetic data were acquired... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Big Cypress National Preserve, City of Homestead, Dade County, Everglades National Park, Florida Bay, All tags... Monroe County, South Florida, USGS Science Data Catalog (SDC), aeromagnetic surveying, aquifer, coastal aquifer, electromagnetic surveying, environment, freshwater/saltwater interface, geophysics, geoscientificInformation, geospatial datasets, groundwater, magnetic surveying, monitoring, resistivity, salinity, saltwater intrusion, water quality, Fewer tags Airborne magnetic and radiometric survey over northwest Arkansas, 2019-2020 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... Boston Mountains, Carroll County, EON Geosciences, Inc., Earth Mapping Resources Initiative, EarthMRI, Franklin County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Independence County, Izard County, Johnson County, Lawrence County, MRP, Madison County, Marion County, Mineral Resources, Mineral Resources Program, Newton County, Ouachita Plateau, Ozarks Plateau, Pope County, Rn, Searcy County, Sharp County, Stone County, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), United States of America, Van Buren County, Washington County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), potassium, radon, thorium, uranium, vertical magnetic gradient, Fewer tags Airborne electromagnetic and magnetic survey data, Stillwater Complex, Montana, May 2000 Note: There is an updated version of this data release, available here: https://doi.org/10.5066/P92R4OL2 A helicopter-borne electromagnetic/magnetic survey was flown over the Stillwater area, southwest Montana from May 5 to May 16, 2000. The survey was conducted over the Stillwater Igneous Complex, a Precambrian layered mafic-ultramafic intrusion which is characterized by igneous layering. Electromagnetic data were acquired using DIGHEM helicopter-borne electromagnetic system. Magnetic data were collected with optically pumped Cesium Vapor Geometrics G822 magnetometer. Sensor elevation above ground was measured with Honeywell/Sperry AA220 radar. The nominal elevation of the sensor was 60 meters. Survey coverage... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geophysics, Montana, aeromagnetic surveying, electromagnetic surveying, geology, All tags... geophysics, geoscientificInformation, resistivity, Fewer tags GeoDAWN: Airborne magnetic and radiometric surveys of the northwestern Great Basin, Nevada and California 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... Categories: Data; Tags: Airborne geophysical survey, Energy Resources, Geophysics, Geophysics, Geothermal Resources, All tags... Magnetic data, Mineral Resources, Mineral Resources, Radiometric data, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), USGS:5e7be5eee4b01d50927301b3, Walker Lane, aeromagnetic surveying, aeroradiometric surveying, crust (earth), eastern California, geoscientificInformation, magnetic anomaly, magnetic field (earth), magnetometer measurement, northwestern Great Basin, western and northern Nevada, Fewer tags Airborne Electromagnetic and Magnetic Survey, Yellowstone National Park, 2016 - Minimally Processed Data Airborne electromagnetic (AEM) and magnetic survey data were collected during November and December 2016 along 4,212 line-kilometers over Yellowstone National Park, Wyoming. The survey was conducted as part of a study of the subsurface geologic structure and geothermal and groundwater resources of Yellowstone National Park. The survey was designed to image the subsurface plumbing of Yellowstone's myriad thermal features by constraining the geometry of the major hydrostratigraphic contacts and mapping regional-scale geologic structures. Data were acquired by SkyTEM ApS with the SkyTEM 312M time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Grand Canyon of the Yellowstone River, Hot Spring Basin Group, All tags... Lower Falls of the Yellowstone River, Lower Geyser Basin, MRP, Mammoth Hot Springs, Midway Geyser Basin, Mineral Resources, Mineral Resources Program, Mud Volcano, Norris Geyser Basin, Old Faithful, Park County, Pelican Valley, State of Wyoming, Teton County, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States of America, Upper Falls of the Yellowstone River, Upper Geyser Basin, Volcanology, Wyoming, Yellowstone Lake, Yellowstone National Park, Yellowstone National Park, Yellowstone River, aeromagnetic surveying, electromagnetic surveying, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, geothermic, groundwater, hydrogeology, resistivity, Fewer tags Airborne magnetic flight line data, Columbia, South Carolina and surrounds, 2020 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... Colleton County, Columbia, Dorchester County, EHP, Earth Mapping Resources Initiative, EarthMRI, Earthquake Hazards Program, Economic Geology, Edgefield County, Fairfield County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Kershaw County, Lee County, Lexington County, MRP, Mineral Resources, Mineral Resources Program, NCGMP, National Cooperative Geologic Mapping Program, Orangeburg County, Richland County, Saluda County, Sedimentology, Seismology, South Carolina, Structural Geology, Sumter County, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, Williamsburg County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, potassium, thorium, uranium, Fewer tags Airborne Magnetic Surveys over Oklahoma, 2017 Airborne magnetic surveys were conducted in Oklahoma from August 11th, 2017-October 28th, 2017, by Goldak Airborne Surveys. Here we present downloadable flight line data from those surveys in comma-separated values (csv format). Three areas were flown along a draped surface with a nominal survey height above ground of 120 meters. The flight line spacing for these areas was 200 to 400 m for Area 123, in southwestern Oklahoma; 1000 m for Area 4, in northwestern Oklahoma, and 800 m for Area 5, in north-central Oklahoma. For each area control lines were flown at ten times the traverse line spacing. The surveys were flown to map subsurface geologic variations including ancient magmatic bodies, faults, and other geologic... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Airborne geophysics, GGGSC, Geologic framework studies, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Induced seismicity, Layered mafic intrusions, MRP, Magnetic data, Mineral Resources Program, Oklahoma, Oklahoma Geological Survey, Remote Sensing, USGS Earthquake Hazards Program, USGS Science Data Catalog (SDC), aeromagnetic surveying, earthquake hazards, geophysics, geoscientificInformation, magnetic field (earth), mineral resources, Fewer tags High-resolution airborne radiometric survey of the Republic Graben, Okanogan and Kettle metamorphic core complexes, Kootenay Arc and surrounding regions, Northeastern Washington This release includes aeroradiometric 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... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Earth Mapping Resources Initiative, EarthMRI, Economic Geology, GMEG, Geology, Minerals, Energy, and Geophysics Science Center, All tags... MRP, Mineral Resources, Mineral Resources Program, NCGMP, National Cooperative Geologic Mapping Program, Sedimentology, Structural Geology, U.S. Geological Survey, USGS, United States, Washington, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), potassium, thorium, uranium, Fewer tags Airborne magnetic and radiometric survey, southeastern Illinois, western Kentucky, and southern Indiana, 2019 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, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: AASG, Association of American State Geologists, Ballard County, Caldwell County, Carlisle County, All tags... Crittenden County, EON Geosciences, Inc., Earth Mapping Resources Initiative, EarthMRI, Franklin County, GGGSC, Gallatin County, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Graves County, Hamilton County, Hardin County, Henderson County, Hicks Dome, Hopkins County, Illinois, Indiana, Johnson County, Kentucky, Kentucky Lake, Livingston County, Lyon County, MRP, Marshall County, McCracken County, Mineral Resources Program, Paducah, Pope County, Posey County, Rn, Saline County, Shawnee National Forest, Trigg County, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Union County, United States of America, Webster County, White County, Williamson County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), potassium, radon, thorium, uranium, Fewer tags Airborne electromagnetic and magnetic survey data, southeastern San Joaquin Valley near Cawelo, California, 2016 Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2016 over a total distance of 262 line kilometers in the southeastern San Joaquin Valley near Cawelo, California. These data were collected in support of groundwater salinity mapping and hydrogeologic framework development as part of the U.S. Geological Survey California Oil, Gas, and Groundwater program and the California State Water Resources Control Board’s Oil and Gas Regional Monitoring Program. Data were acquired by SkyTEM ApS with the SkyTEM 312 time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was designed to cover the region hydrogeologically downgradient... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: CAWSC, California, California Water Science Center, Cawelo, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Kern County, Poso Creek, Poso Creek Oil Field, San Joaquin Valley, USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater quality, hydrogeology, resistivity, salinity, Fewer tags Airborne horizontal magnetic gradient and radiometric survey over parts of southeast Missouri, southern Illinois and western Kentucky - The Gap survey, 2021 This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri, southern Illinois, and western Kentucky. The survey was conducted in collaboration with the Missouri Geological Survey 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... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alexander County, Ballard County, Bollinger County, Cape Girardeau, Cape Girardeau County, All tags... Carlisle County, EHP, Earth Mapping Resources Initiative, EarthMRI, Earthquake Hazards Program, Economic Geology, Franklin County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Geophysics, Illinois, Jackson County, Jefferson County, Johnson County, Kentucky, MRP, Massac County, McCracken County, Mineral Resources, Mineral Resources, Mineral Resources Program, Mississippi County, Missouri, NCGMP, National Cooperative Geologic Mapping Program, New Madrid County, Perry County, Perry County, Pulaski County, Randolph County, Scott County, Sedimentology, Seismology, St. Clair County, Stoddard County, Structural Geology, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Union County, United States, Washington County, Williamson County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, potassium, thorium, uranium, Fewer tags Airborne magnetic and radiometric survey, Ironton, Missouri area This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over the Ironton, Missouri area of southeast Missouri. Data were collected using a fixed wing aircraft with magnetometers mounted in the tail stinger and each wing tip pod and a fully calibrated gamma ray spectrometer. The survey operated out of the Farmington, Missouri airport during January to mid-February of 2016. The survey covers an irregularly shaped region within a 54 x 53 square-kilometer area centered on the town of Ironton, Missouri. Data were collected along north-south flight lines spaced 300 meters (m) apart with east-west tie lines flown every 3000 m. A mean terrain clearance... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: CGGSC, Cedar Hill, Crustal Geophysics and Geochemistry Science Center, Iron Mountain, Ironton, All tags... MRP, Mineral Resources Program, Missouri, Pilot Knob, Shepard Mountain, USGS Science Data Catalog (SDC), aeromagnetic surveying, aeroradiometric surveying, geophysics, geoscientificInformation, geospatial datasets, magnetic field (earth), magnetic surveying, Fewer tags Elevation surface grids for the southern midcontinent Regional surface elevation grid files (provided in Grid eXchange File format) were used to study crustal architecture beneath the Southern Midcontinent (USA) by McCafferty and others (2019). The study covered a rectangular, multi-state area of 924 by 924 kilometers centered on Missouri, and a corresponding volume extending from the topographic surface to a depth of 50 kilometers below sea level. The grid files (magnetic field observation surface, topographic surface, Precambrian basement surface, and Moho interface) were used to construct templates and initial physical property models for 3D inversions. A masked version of the Precambrian basement surface grid was used to remove inverted densities and magnetic susceptibilities... Tags: Arkansas, Illinois, Indiana, Iowa, Kansas, All tags... Kentucky, Mississippi, Missouri, Oklahoma, Tennessee, aeromagnetic surveying, bouguer anomaly, bulk density, crust (earth), geophysics, geoscientificInformation, geospatial datasets, gravimeter measurement, gravimetric methods, gravitational field (earth), magnetic field (earth), magnetic susceptibility, magnetic susceptibility analysis, magnetometer measurement, scientific interpretation, topography, Fewer tags High Resolution Aeromagnetic Survey, Villa Grove, Colorado, USA, 2011 This data release includes data collected from the Villa Grove helicopter magnetic survey in northern San Luis Valley and Poncha Pass region in south-central Colorado, USA. The survey area extends over the northern part of Great Sand Dunes National Park, Poncha Pass and vicinity, and into the southern end of the Upper Arkansas Valley. It includes the communities of Crestone, Villa Grove, Saguache, and Salida. Several U.S. Geological Survey programs (including the National Cooperative Geologic Mapping Program, Mineral Resources Program, and Geothermal Program), as well as the Colorado Geological Survey, funded the survey. The data are part of studies to help refine our knowledge in this area about the nature of aquifers,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Chaffee County, City of Salida, Colorado, Crestone, Fremont County, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Great Sand Dunes National Park, MRP, Minerals Resources Program, Poncha Pass, Saguache, Saguache County, San Luis Creek, San Luis Valley, USGS Science Data Catalog (SDC), Villa Grove, aeromag, aeromagnetic, aeromagnetic surveying, airborne magnetic survey, geophysics, geoscientific information, geospatial datasets, magnetic field (earth), magnetic surveying, Fewer tags 1 2 3 »