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High-Resolution Aeromagnetic Survey Over the New Madrid Seismic Zone, Missouri, Arkansas, and Tennessee This data release provides access to a low-altitude, aeromagnetic survey over parts of Missouri, Arkansas, and Tennessee, an area centered about 100 km north of Memphis, Tennessee. The survey covers parts of the southern arm of the New Madrid seismic zone, the northwestern margin of the Reelfoot rift, the Blytheville arch, and the Commerce geophysical lineament (reference: Langenheim, V.E., and Hildenbrand, T.G., 1997, Geological Society of America Bulletin, v. 109, p. 580). The survey is underlain by Paleocene and younger sediments, consisting of silt, clay, sand, and gravel. Plutons and other intrusive rocks lie at depth. These data were acquired between July 12 and July 28, 2013, by EDCON-PRJ, Inc., working under... Categories: Data; Tags: Blytheville, Crowley Ridge, Geophysics, Mineral Resources, New Madrid, All tags... USGS Science Data Catalog (SDC), aeromagnetic surveying, crust (earth), earthquakes, geoscientificInformation, magnetic anomaly, magnetic field (earth), magnetometer measurement, neotectonic processes, Fewer tags High-Resolution Aeromagnetic Survey of the Hanford Area, Washington This data release provides access to a low-altitude, aeromagnetic survey of a part of south-central Washington centered approximately 30 km east of Yakima and referred to as the Hanford aeromagnetic survey. The survey includes the city of Richland, numerous smaller communities, and the Hanford Site (https://www.hanford.gov). The Hanford aeromagnetic survey extends from the Columbia Plateau westward to the Cascade Range and illuminates magnetic anomalies associated with folds and faults of the Yakima folds, including the Toppenish Ridge, Ahtanum Ridge, Umtanum Ridge, Boyleston Mountain, Rattlesnake Mountain, Saddle Mountains, and Frenchman Hills anticlines. These data were acquired during September and October, 2009,... Categories: Data; Tags: Benton, Geophysics, Grant, Hanford, Mineral Resources, All tags... USGS Science Data Catalog (SDC), Yakima, aeromagnetic surveying, crust (earth), earthquakes, geoscientificInformation, magnetic anomaly, magnetic field (earth), magnetometer measurement, neotectonic processes, Fewer tags High-Resolution Aeromagnetic Survey of the Pasco Area, Washington and Oregon This data release provides access to a low-altitude, aeromagnetic survey of a part of south-central Washington and north-central Oregon. The survey extends from the Blue Mountains westward to the Cascade Range and covers the Oregon cities of The Dalles, Hermiston, and Milton Freewater and the Washington cities of Richland, Pasco, Kennewick, and Walla Walla. Data were acquired during the summer of 2010 by Goldak Airborne Surveys working under contract to the U.S. Geological Survey. Total magnetic field values were acquired using a fixed-wing aircraft flown at a target elevation of 150 m above terrain (305 m over urban areas) and along flight lines and tie lines spaced 400 m and 4000 m apart, respectively. Flight... Categories: Data; Tags: Benton, Geophysics, Gilliam, Mineral Resources, Morrow, All tags... Seismology, Sherman, Structural Geology, The Dalles, USGS Science Data Catalog (SDC), Umatilla, Walla Walla, aeromagnetic surveying, crust (earth), earthquakes, geoscientificInformation, magnetic anomaly, magnetic field (earth), magnetometer measurement, neotectonic processes, Fewer tags High-Resolution Aeromagnetic Survey Over Cascade Locks, Oregon, and Surrounding Areas This data release provides access to a low-altitude aeromagnetic survey flown over a part of the Cascade Range of the US Pacific Northwest, approximately centered over the town of Cascade Locks, Oregon. The Cascade Locks magnetic survey encompasses two large stratovolcanoes of the Cascade Range: Mt. Hood (3426 m) in Oregon and Mt. Adams (3742 m) in Washington. Data were acquired between October 17, 2021, and February 26, 2022, by KBM Resources Group, Thunder Bay, Ontario, Canada, working under contract to the U.S. Geological Survey. The survey is underlain by a diverse magnetic terrane, including Miocene flood basalts of the Columbia River Basalt Group and Tertiary to Quaternary volcanic and intrusive rocks of the... Categories: Data; Tags: Cascade Range, Cascadia, Clackamas County, Clark County, Columbia River Gorge National Scenic Area, All tags... Cowlitz County, Geophysics, Gifford Pinchot National Forest, Hood River County, Klickitat County, Mount Adams, Mount Hood National Forest, Mount. Hood, Multnomah County, Oregon, Seismology, Skamania County, USGS Science Data Catalog (SDC), Volcanology, Wasco County, Washington, Yakima County, aeromagnetic surveying, crust (earth), earthquakes, geoscientificInformation, magnetic anomaly, magnetic field (earth), magnetometer measurement, neotectonic processes, Fewer tags Airborne magnetic survey, northwestern Minnesota, 2021 This data release provides digital flight line data for a high-resolution airborne magnetic survey over parts of northwestern Minnesota near the town of Mentor. The airborne survey was funded by the Earth Mapping Resources Initiative and was designed to meet complementary needs related to geologic mapping and characterization of mineral resource potential. A total of 40,139-line km of magnetic data were acquired over an irregular-shaped area of 9140 km2. Data were collected from a fixed-wing aircraft flown at mean terrain clearance of 120 meters (m) above topography along N-S flight lines spaced at 250 m intervals. Tie lines were flown in an E-W direction every 2500 m. Data were collected by EDCON-PRJ and NV5 Geospatial,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Becker County, Clay County, Clearwater River, Earth Mapping Resources Initiative, EarthMRI, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Marsh River, Marshall County, Mentor Complex, Mineral Resources Program, Minnesota, Norman County, Pennington County, Polk County, Red Lake County, Red Lake River, Silver River, Thief River, Thief River Falls, U.S. Geological Survey, USA, USGS, United States, United States of America, Wild Rice River, aeromagnetic surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, magnetic field (earth), northwestern Minnesota, vertical magnetic gradient, Fewer tags 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 EM, magnetic, and radiometric survey data 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... Categories: Data; Tags: GGGSC, Geology, Geophysics, and Geochemistry Science Center, Greenwood, Leflore County, MRVA, All tags... Mississippi, Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Shellmound, Sunflower County, Tallahatchie River, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetics, radiometrics, resistivity, water resources, Fewer tags AEM inverted resistivity models 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... Categories: Data; Tags: Arkansas, Bayou Bartholomew, Bayou Meto, Boeuf River, Cache River, All tags... Coldwater River, Crowley's Ridge, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, L'Anguille River, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Saint Francis River, Tallahatchie River, Tennessee, WAUSP, Water Availability and Use Science Program, Yazoo River, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, magnetic field, magnetics, radiometrics, resistivity, water resources, 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 Airborne radiometric flight line data, western Arkansas, 2022 Airborne radiometric data are provided here as part of the data release "Airborne magnetic and radiometric survey, western Arkansas, 2022." This website includes the processed radiometric data, with and without spectra, provided in ASCII .csv files and geoTIFF images showing the total count (K, U, Th), percent potassium (%K), equivalent uranium (eU), and equivalent thorium (eTh). Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: AASG, Arkansas, Association of State Geologists, Dardanelle, Dardanelle Lake, All tags... Earth MRI, Earth Mapping Resources Initiative, GGGSC, Garland, Geology, Geophysics, and Geochemistry Science Center, Johnson, Logan, MRP, Mineral Resources Program, NCGMP, National Cooperative Geologic Mapping Program, Ouachita National Forest, Petit Jean, Pope, Saline, Scott, U.S. Geological Survey, USA, USGS, United States, United States of America, Yell, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, critical minerals, economic geology, economy, geophysics, geoscientificInformation, geospatial datasets, potassium, structural geology, thorium, uranium, west-central Arkansas, western Arkansas, western Arkansas, Fewer tags Hicks Dome Magnetic Data 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... Crittenden County, EON Geosciences, Inc., Earth Mapping Resources Initiative, EarthMRI, Franklin County, GGGSC, Gallatin County, Geology, Geophysics, and Geochemistry Science Center, 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, 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 Resistivity models Airborne electromagnetic (AEM) and magnetic survey data were collected during March 2018 along 1,637 line kilometers over the western Hualapai Indian Reservation and surrounding areas. The survey was conducted as part of a study of the groundwater resources of the Truxton basin and Hualapai Plateau. The survey was designed to improve the understanding of the geometry of major hydrostratigraphic contacts of the study area. Deterministic laterally constrained inversion of the processed AEM data was conducted using the AarhusINV code (Auken and others, 2014) implemented in Aarhus Workbench software (Aarhus Geosoftware, Aarhus, Denmark). Inversion parameters were selected by running a series of test models with varying... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AZWSC, Arizona, Arizona Water Science Center, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Grand Canyon, Grand Canyon West Airport, Hualapai Indian Reservation, Hualapai Plateau, Hurricane Fault, Mohave County, Music Mountains, Peach Springs, Truxton, Truxton basin, aeromagnetic surveying, electromagnetic surveying, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, resistivity, Fewer tags Airborne electromagnetic and magnetic survey data and inverted resistivity models, western Yukon Flats, Alaska, February 2016 Airborne electromagnetic (AEM) and magnetic survey data were collected during February 2016 along 300 line kilometers in the western Yukon Flats near Stevens Village, Alaska. Data were acquired with the CGG RESOLVE frequency-domain helicopter-borne electromagnetic systems together with a Scintrex Cesium Vapour CS-3 magnetometer. The AEM average depth of investigation is about 100 m. The survey was flown at a nominal flight height of 30 m above terrain along widely spaced reconnaissance lines. This data release includes raw and processed AEM data and laterally-constrained inverted resistivity depth sections along all flight lines. This release also includes unprocessed and processed magnetic data that has been drift... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska Division of Geological and Geophysical Surveys, CGGSC, Crustal Geophysics and Geochemistry Science Center, Geophysics, NASA ABoVE, All tags... USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, permafrost, resistivity, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey, upper East River and surrounding watersheds near Crested Butte, Colorado, 2017 This data release consists of 1,984 line-kilometers of airborne electromagnetic (AEM), magnetic data and radiometric data collected from October to November 2017 in the upper East River and surrounding watersheds in central Colorado. The U.S. Geological Survey contracted Geotech Ltd. to acquire these data as part of regional investigations into the geologic structure and hydrologic framework of the area. The AEM data have been inverted to produce a series of regional cross-sections that constrain the electrical properties of the subsurface to a depth of ~500m. Data were acquired using the VTEM ET time-domain helicopter-borne electromagnetic system along flight lines that cross important geological structures over... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Colorado, Crested Butte, East River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Gunnison County, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater flow, hydrogeology, magnetics, near surface, radiometrics, resistivity, Fewer tags Airborne magnetic flight line data, Virginia and North Carolina Fall Zone, 2021 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... Caroline County, Charles City County, Chesterfield County, Colonial Heights County, Cumberland County, Dinwiddie County, Downloadable, EHP, Earth Mapping Resources Initiative, EarthMRI, Earthquake Hazards Program, Edgecombe County, Emporia County, Fluvanna County, GGGSC, GeoTIFF, Geology, Geophysics, and Geochemistry Science Center, Goochland County, Greensville County, Halifax County, Hanover County, Henrico County, Hopewell County, Louisa County, MRP, Map Service, Martin County, Mineral Resources Program, NCGMP, Nash County, National Cooperative Geologic Mapping Program, North Carolina, Northampton County, Nottoway County, Petersburg, Petersburg County, Powhatan County, Prince George County, Rasters, Richmond, Richmond City County, Rocky Mount, Southampton County, Sussex County, U.S. Geological Survey, USGS, United States, Virginia, Warren County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, economy, geophysics, geoscientific information, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, horizontal magnetic gradiometry, magnetic field (earth), potassium, radon, thorium, uranium, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2019 - March 2020 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... Hydrology, Illinois, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, New Madrid Seismic Zone, Shellmound, Tennessee, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WAUSP, Water Availability and Use Science Program, Water Resources, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrology, magnetic field, magnetics, potassium, radiometrics, resistivity, thorium, uranium, water resources, 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 Minimally processed AEM and magnetic data Airborne electromagnetic (AEM) and magnetic survey data were collected during March 2018 along 1,637 line line-kilometers over the western Hualapai Indian Reservation and surrounding areas. The survey was conducted as part of a study of the groundwater resources of the Truxton basin and Hualapai Plateau. The survey was designed to improve the understanding of the geometry of the major hydrostratigraphic contacts of the study area. 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 flown at a nominal flight height of 30 meters (m) above terrain along block-style lines with a nominal spacing... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AZWSC, Arizona, Arizona Water Science Center, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Grand Canyon, Grand Canyon West Airport, Hualapai Indian Reservation, Hualapai Plateau, Hurricane Fault, Mohave County, Music Mountains, Peach Springs, Truxton, Truxton basin, aeromagnetic surveying, electromagnetic surveying, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, resistivity, Fewer tags Everglades_4Lines_2001 Airborne electromagnetic (AEM) and magnetic survey data along four flight lines were collected in Everglades National Park, Florida as part of a larger survey. Data were collected during October 2001. These lines, totaling 95.2 line-kilometers, repeated the path of four lines from 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 with Dighem VRES frequency-domain system. Magnetic data were collected with a Scintrex CS2 cesium-vapor magnetometer. The nominal elevation of the electromagnetic system was 30 m. This data release includes raw and processed AEM data. This release also... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Big Cypress National Preserve, City of Homestead, Dade County, Everglades National Park, Florida Bay, All tags... Monroe County, South Florida, 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 flight line data, Charleston, South Carolina and surrounds, 2019 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... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Berkeley County, Charleston, Charleston County, Clarendon County, Colleton County, All tags... Dorchester County, EHP, Earth Mapping Resources Initiative, EarthMRI, Earthquake Hazards Program, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Georgetown County, MRP, Mineral Resources Program, NCGMP, National Cooperative Geologic Mapping Program, Orangeburg County, South Carolina, United States, Williamsburg County, aeromagnetic surveying, aeroradiometric surveying, airborne geophysical survey, economy, geophysics, geoscientificInformation, geospatial datasets, horizontal magnetic gradiometry, potassium, thorium, uranium, Fewer tags 1 2 3 4 5 ... 7 »