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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 Geochemical Data Release for Idaho Primitive Area, including the contiguous Clear Creek-Upper Big Deer Creek Area, the Salmon River Breaks Primitive Area, the Sawtooth Primitive Area, and adjacent areas, central Idaho (ver. 1.2, June 2022) This U.S. Geological Survey (USGS) data release (ver. 1.2, April 2022) contains a set of previously unpublished geochemical data from project studies of primitive areas in central Idaho, including the Clear Creek-Upper Big Deer Creek Area, the Salmon River Breaks and Sawtooth Primitive Areas, and the Gospel-Hump Wilderness Area. The purpose of the USGS Idaho Primitive Area studies, conducted from 1966 to 1984, was to describe the geology, determine petrologic and geochemical characteristics, and evaluate the mineral resource potential of these primitive areas and adjacent study areas. In the case of the Idaho Primitive Area study (Cater and others, 1973), the primitive area covers 1,915 square miles; adjacent... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Big Deer Creek, Bitterroot National Forest, Blaine County, Boise County, Boise National Forest, All tags... Boise River, Camas County, Challis National Forest, Clear Creek, Clear Creek-Upper Big Deer Creek Area, Custer County, Elmore County, Frank Church River of No Return Wilderness, Idaho, Idaho County, Idaho Primitive Area, Lemhi County, NGDB, National Geochemical Database, Nez Perce National Forest, Payette National Forest, Payette River, Salmon National Forest, Salmon River, Salmon River Breaks Primitive Area, Salmon River Mountains, Sawtooth National Forest, Sawtooth National Recreation Area, Sawtooth Primitive Area, Sawtooth Range, Sawtooth Wilderness, Stanley Basin, USA, USGS Science Data Catalog (SDC), United States of America, Valley County, Yellowjacket Mountains, aluminum, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, calcium, cerium, chemical analysis, chromium, cobalt, copper, dysprosium, environmental geochemistry, erbium, europium, exploration geochemistry, fluorine, gadolinium, gallium, geochemical data, geochemistry, geoscientificInformation, germanium, gold, hafnium, heavy metals, holmium, indium, iron, lanthanum, lead, lithium, lutetium, magnesium, manganese, mercury, mineral resources, molybdenum, neodymium, nickel, niobium, palladium, pan concentrate, platinum, praseodymium, rhenium, rock geochemistry, samarium, scandium, sediment geochemistry, silver, stream sediment, strontium, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, unconsolidated deposits, uranium, vanadium, ytterbium, yttrium, zinc, zirconium, Fewer tags Airborne electromagnetic and magnetic survey data, southeastern San Joaquin Valley near Cawelo, California, 2016: Processed AEM data 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. Minimally processed binary AEM data received from SkyTEM ApS were imported into the Aarhus Workbench software (Aarhus Geosoftware, Aarhus, Denmark) and processed. Filters were applied to inclinometer and spatial positioning data to... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; 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, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater quality, hydrogeology, resistivity, salinity, Fewer tags Airborne electromagnetic and magnetic survey data, northeast Wisconsin (ver. 1.1, June 2022) Airborne electromagnetic (AEM) and magnetic survey data were collected during January and February 2021 over a distance of 3,170 line kilometers in northeast Wisconsin. These data were collected in support of an effort to improve estimates of depth to bedrock through a collaborative project between the U.S. Geological Survey (USGS), Wisconsin Department of Agriculture, Trade, and Consumer Protection (DATCP), and Wisconsin Geological and Natural History Survey (WGNHS). Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304M time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was acquired at a nominal flight height of 30 - 40 m above terrain... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brown County, Calumet County, Door County, Fond du Lac County, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Kewaunee County, Manitowoc County, Sheboygan County, UMid WSC, USGS Science Data Catalog (SDC), Upper Midwest Water Science Center, Wisconsin, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, resistivity, stratigraphic thickness, Fewer tags Ground conductivity measurements at selected National Wildlife Refuges, Montana and North Dakota, 2017-2018 Shallow subsurface electrical conductivity was mapped at selected U.S. Fish and Wildlife Service managed lands in northeast Montana and northwest North Dakota using the DUALEM421 electromagnetic sensor (Dualem, Inc., ON, Canada) in the winters of 2017 and 2018. Data were acquired by towing the DUALEM421 sensor on a sled behind an all-terrain vehicle or snow machine, with the sensor at a nominal height of 0.3 meters (m) above ground surface. Approximately 427 line-kilometers (km) of data were acquired over an area of nearly 26 square-kilometers. Data were manually edited to remove sensor dropouts, lag corrected for apparent offsets between recorded GPS location and data locations for each coil pair, and averaged... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Anderson, Beaver Lake, Bigslough, Divide County, ND, Dog Leg, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Gjesdal East, Goose Lake, Hansen, Jerde, Larson Slough, Lindell, Medicine Lake, Medwell, Montana, NOROCK, National Wildlife Refuge, Norman Lake, North Dakota, North Root, Northeast, Northern Rocky Mountain Science Center, Prairie Pothole Region, Rabenberg, STEPPE, Science Team about Energy and Plains and Potholes Environments, Sheridan County, MT, Stateline, USGS Science Data Catalog (SDC), Ward, Westby, MT, Westgard, Wigeon, Williston Basin, electromagnetic surveying, electromagnetics, environment, geophysics, geoscientificInformation, groundwater, https://www.sciencebase.gov/catalog/item/5e739c2de4b01d50926c0a08, hydrogeology, resistivity, salinity, water resources, Fewer tags Geochemistry and Environmental Tracer Data for Groundwater, Stream Water, and Soil and Sediment from North Quartz Creek, Colorado This U.S. Geological Survey (USGS) data release contains data from stream water, groundwater, and soil samples collected in 2019 and 2020 in the North Quartz Creek watershed in central Colorado. Fourteen streambank wells were installed in pairs at seven locations in August 2020 to capture the emerging groundwater from the left bank and right banks (relative to downstream-facing direction) and a synoptic sampling campaign was conducted to quantify metal contributions to the stream. A continuous, instream injection of sodium bromide (NaBr) was initiated at the head of the 5 km study reach several days prior to the synoptic sampling campaign and maintained throughout the duration of the study. Bromide concentrations... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: "Environmental Health"], "Mineral Resources", "Water Quality", GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Gunnison County, Colorado, Gunnison National Forest, MRP, Mineral Resources Program, North Quartz Creek, Town of Pitkin, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), ["Geochemistry", abandoned mines and quarries, chemical tracer studies, environment, geochemistry, geochemistry, groundwater and surface-water interaction, groundwater geochemistry, inland waters, mine drainage, streambank well, sulfide-weathering, synoptic sampling, tracer injection, Fewer tags [Geophysical Data] Magnetic and related derivative GeoTIFF grids and data for the United States and Canada This directory includes GeoTIFF grids and shapefiles of magnetic data that cover the countries of the US and Canada. GeoTIFF grids of national-scale magnetic anomaly data for the conterminous United States (Ravat and others, 2009), Alaska (Division of Geological and Geophysical Surveys, 2016) and Canada (Miles and Oneschuk, 2016) were merged to create a composite residual magnetic anomaly grid of the United States and Canada. Several derivative products were calculated from the residual magnetic anomaly grid and are provided in this directory. Derivative grids include a reduced-to-pole (RTP) magnetic anomaly grid, the 1st vertical derivative of the RTP, the horizontal gradient magnitude pseudo-gravity calculated... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canada, Reduction to magnetic north pole, United States, airborne magnetics, critical minerals, All tags... first vertical derivative, geophysics, geoscientificInformation, horizontal gradient magnitude, lead, magnetic anomaly, magnetic field (earth), maps and atlases, metallic mineral resources, mineral resources, pseudogravity, zinc, Fewer tags Processed AEM data Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2016 along 1,443 line kilometers in the southwestern San Joaquin Valley near Lost Hills, 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 Program of Regional Monitoring of Water Quality in Areas of Oil and Gas Production. Minimally processed binary AEM data received from the contractor were imported into the Aarhus Workbench software (Aarhus Geosoftware, Aarhus, Denmark) and processed. Filters were applied to inclinometer... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CAWSC, California, California Water Science Center, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Lost Hills, Lost Hills Oil Field, North Belridge Oil Field, Northwest Lost Hills Oil Field, San Joaquin Valley, South Belridge Oil Field, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater quality, hydrogeology, resistivity, salinity, Fewer tags Airborne electromagnetic and magnetic survey, western Hualapai Indian Reservation near Grand Canyon West and Peach Springs, Arizona, 2018 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... 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... Geophysics, Grand Canyon, Grand Canyon West Airport, Hualapai Indian Reservation, Hualapai Plateau, Hurricane Fault, Hydrology, Mohave County, Music Mountains, Peach Springs, Structural Geology, Truxton, Truxton basin, USGS Science Data Catalog (SDC), Water Resources, aeromagnetic surveying, electromagnetic surveying, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, resistivity, Fewer tags Audiomagnetotelluric survey to characterize the Sunnyside porphyry copper system in the Patagonia Mountains, Arizona This dataset includes audiomagnetotelluric (AMT) sounding data collected in 2008 in and near the Patagonia Mountains of southern Arizona. The U.S. Geological Survey (USGS) conducted a series of multidisciplinary studies as part of the Assessment Techniques for Concealed Mineral Resources project funded by the USGS Minerals Resources Program in cooperation with the U.S. Forest Service. The USGS used AMT data at six sites along a southwest-northeast profile of about 10 kilometers (km) across the northwest-trending Sunnyside porphyry copper system. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AMT, Arizona, GGGSC, GPS measurement, Geology, Geophysics, and Geochemistry Science Center, All tags... MRP, MT, Mineral Resources Program, Patagonia Mountains, San Rafael Valley, Santa Cruz County, Sunnyside porphyry, USGS Science Data Catalog (SDC), apparent resistivity, audiomagnetotelluric, copper, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Fire impacts on permafrost in Alaska: Geophysical and other field data collected in 2015 Fire can be a significant driver of permafrost change in boreal landscapes, altering the availability of soil carbon and nutrients that have important implications for future climate and ecological succession. However, not all landscapes are equally susceptible to fire-induced change. As fire frequency is expected to increase in the high latitudes, methods to understand the vulnerability and resilience of different landscapes to permafrost degradation are needed. Geophysical and other field observations reveal details of both near-surface (less than 1 m) and deeper (greater than 1 m) impacts of fire on permafrost along 14 transects that span burned-unburned boundaries in different landscape settings within interior... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Active layer thickness, Alaska, Borehole nuclear magnetic resonance, Chatanika, City of Fairbanks, All tags... Coldfoot, Disturbance, Fire, GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Mineral Resources Program, Organic layer thickness, Permafrost, Resistivity profiling, Soils, Toolik Lake, USGS Science Data Catalog (SDC), environment, fire damage, fires, geoscientificInformation, permafrost, resistivity, soil moisture, vegetation, Fewer tags Principal facts of regional gravity data in northeast Iowa Gravity data were collected from 2016 through 2018 to assist in mapping subsurface geology in northeastern Iowa. This data release provides principal facts for 1080 new gravity stations that were acquired to supplement existing public gravity data coverage. References cited: Blakely, R.J., 1995, Potential Theory in Gravity and Magnetic Applications, Cambridge University Press, 441 p. International Association of Geodesy, 1971, Geodetic reference system 1967: International Association of Geodesy Special Publication No. 3, 116 p. Morelli, C., ed., 1974, the International gravity standardization net 1971: International Association of Geodesy Special Publication no.4, 194 p. Plouff, Donald, 1977, Preliminary documentation... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Benton County, Black Hawk County, Bremer County, Buchanan County, Chickasaw County, All tags... Clayton County, Delaware County, Fayette County, Geophysics, Iowa County, Johnson County, Jones County, Linn County, Mineral Resources, Tama County, USGS Science Data Catalog (SDC), bouguer anomaly, free-air anomaly, geoscientificInformation, gravimeter measurement, gravitational field (earth), isostatic anomaly, Fewer tags Geochemical data used in the tungsten skarn mineral resource assessment of the Great Basin region of western Nevada and eastern California The U.S. Geological Survey (USGS) has undertaken a mineral resources assessment for tungsten for a portion of the Great Basin in parts of western Nevada and east-central California. This data release provides the Great Basin Tungsten Database: the geospatial and geologic data, and results of chemical analyses for 46,955 samples collected in the assessment area, extracted from the USGS National Geochemical Database. These rock records were collected as part of various programs and projects at the USGS and analyzed from 1963 to 2015. The database represents rock records, each comprising one best value chemical determination for each analyzed chemical species, that include skarns, carbonate lithologies (for example,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Great Basin, MRP, All tags... Mineral Resource Assessment Training Program, Mineral Resources Program, NGDB, National Geochemical Database, Nevada, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, aluminum, analytical chemistry, antimony, arsenic, atomic emission spectroscopy, barium, beryllium, bismuth, boron, bromine, cadmium, calcium, carbon, cerium, cesium, chemical analysis, chlorine, chromium, cobalt, copper, critical minerals, dysprosium, economic geology, erbium, europium, fluorine, gadolinium, gallium, geochemical data, geochemistry, geoscientificInformation, germanium, gold, hafnium, holmium, indium, iridium, iron, lanthanum, lead, lithium, lutetium, magnesium, manganese, mercury, metallic mineral resources, mineral deposits, mineral resources, molybdenum, neodymium, nickel, niobium, palladium, phosphorus, platinum, potassium, praseodymium, rhenium, rhodium, rock geochemistry, rocks and deposits, rubidium, ruthenium, samarium, scandium, selenium, silicon, silver, sodium, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, uranium, vanadium, ytterbium, yttrium, zinc, zirconium, Fewer tags Magnetotelluric sounding data, stations 1-9, Taos Plateau Volcanic Field, New Mexico, 2009 This dataset includes the magnetotelluric (MT) sounding data collected in 2009 in and near the San Luis Basin, New Mexico. The U.S. Geological Survey conducted a series of multidisciplinary studies, including MT surveys, in the San Luis Basin to improve understanding of the hydrogeology of the Santa Fe Group and the nature of the sedimentary deposits comprising the principal groundwater aquifers of the Rio Grande rift. The shallow unconfined and the deeper confined Santa Fe Group aquifers in the San Luis Basin are the main sources of municipal water for the region. The population of the San Luis Basin region is growing rapidly and water shortfalls could have serious consequences. Future growth and land management... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CGGSC, Cerro, Crustal Geophysics and Geochemistry Science Center, Electromagnetic surveying, GPS measurement, All tags... Geophysics, Geophysics, MRP, MT, Magnetic field (earth), Magnetic surveying, Mineral Resources Program, New Mexico, Questa, Rocky Mountains, San Luis Valley, Taos, Taos County, Tres Piedras, USGS Science Data Catalog (SDC), apparent resistivity, aquifer, geoscientificinformation, groundwater, hydrogeology, impedance, impedance phase, impedance strike, magnetotelluric, sounding, tipper, Fewer tags Hydrologic and geophysical data from high-elevation boreholes in Redwell Basin near Crested Butte, Colorado Four boreholes (MW1, MW1UZ, MW2, MW2.1) were drilled in the fall of 2017 and summer of 2018 in upper Redwell Basin, a headwater catchment underlain by hydrothermally altered sedimentary rock in the Elk Mountains near the town of Crested Butte, Colorado. The boreholes were continuously cored using a wireline HQ-sized coring system and sample a combination of Quaternary-aged surficial colluvium and the Cretaceous-aged Mesaverde Formation. In-situ injection-based hydraulic tests were performed in MW1 and MW2 during drilling while advancing using a single-packer apparatus in tandem with an in-line flow meter and interval pressure monitoring. Borehole geophysical logging was performed in MW1, MW1UZ, and MW2.1 in the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Colorado, Crested Butte, Cretaceous, Elk Mountains, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Geophysics, Gunnison County, Gunsight Pass, Hydrology, Hydrology, Lawrence Berkeley National Laboratory, MRP, Mesaverde Formation, Metal transport in mineralized mountain watersheds, Mineral Resources, Mineral Resources, Mineral Resources Program, Mount Sopris Instruments, Quaternary, Redwell Basin, Rocky Mountain Biological Laboratory, Subsurface Biogeochemical Research Program, U.S. Geological Survey (USGS), USGS Science Data Catalog (SDC), University of Wyoming, borehole logging, core analysis, drilling and coring, environment, geoscientificInformation, groundwater, groundwater level, hydrogeology, permeability, porosity, Fewer tags Electrical resistivity tomography (ERT) data Surface electrical resistivity tomography (ERT), electromagnetic induction (EMI), and self-potential (SP) data were acquired March 9 - 20, 2018 by the U.S. Geological Survey, in collaboration with the U.S. Army Corps of Engineers, at the Jim Woodruff Lock and Dam near Chattahoochee, Florida. Eleven ERT profiles were acquired along the right (west) abutment, and immediately downstream, of the concrete, fixed-crest spillway located west of the lock to map geologic structure at depths up to 50 meters (m) using the Advanced Geosciences, Inc. SuperSting R8 resistivity meter. This data release includes the raw and processed resistivity data as well as inverted resistivity models. All are provided as digital data, and... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Apalachicola River, Chattahoochee, Chattahoochee River, Decatur County, ERT surveying, All tags... Flint River, Florida, GGGSC, Gadsden County, Geology, Geophysics, and Geochemistry Science Center, Georgia, Jackson County, Jim Woodruff Lock and Dam, Lake Seminole, Polk Lake, Suwannee Limestone, Tampa Limestone, U.S. Geological Survey, USGS, Upper Floridan Aquifer, dam, electrical resistivity imaging, electrical resistivity tomography, electromagnetic induction, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, karst, resistivity, self-potential, sinkhole formation, spontaneous-potential, surface water (non-marine), water resources, Fewer tags Airborne Electromagnetic (AEM) Survey in Southwest and Southeast Areas, Wisconsin, 2022 Airborne electromagnetic (AEM) and magnetic survey data were collected during March 2022 over a distance of 2,574.6 line kilometers in southeast and southwest Wisconsin. These data were collected in support of an effort to improve estimates of depth to bedrock through a collaborative project between the U.S. Geological Survey (USGS), Wisconsin Department of Agriculture, Trade, and Consumer Protection (DATCP), and Wisconsin Geological and Natural History Survey (WGNHS). Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304M time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was acquired at a nominal flight height of 30 - 40 meters (m)... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Crawford County, Dane County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Grant County, Green County, Hydrology, Iowa County, Jefferson County, Kenosha County, Lafayette County, Racine County, UMid WSC, USGS Science Data Catalog (SDC), Upper Midwest Water Science Center, Walworth County, Water Resources, Waukesha County, Wisconsin, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, resistivity, stratigraphic thickness, 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 Magnetics Data Surface electrical resistivity tomography, magnetic, and gravity surveys were conducted in July 2017 in the greater East River Watershed near Crested Butte Colorado with a focused effort in Redwell Basin as part of a broader study of the role of bedrock groundwater in the hydrogeology of mineralized mountain watersheds. Approximately ten kilometers of total field magnetics data were acquired on July 29, 2017 with a Geometrics G-858 cesium vapor magnetometer that detects changes in deep (tens of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations. This data release includes the raw and processed magnetics data. They are provided as digital data, and data... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Brush Creek, Colorado, Crested Butte, East River, GGGSC, All tags... Geology, Geophysics, and Geochemistry Science Center, Gothic, Gunnison County, MRP, Mineral Resources Program, Mount Emmons, Oh-be-joyful, Redwell Basin, U.S. Geological Survey, USGS, bouguer anomaly, electrical resistivity tomography, electromagnetic surveying, electromagnetics, environment, free-air anomaly, geophysics, geoscientificInformation, geospatial datasets, gravimeter measurement, gravitational field (earth), gravity, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetic surveying, magnetics, nuclear magnetic resonance, resistivity, water resources, Fewer tags Whole-rock geochemical data for alkaline intrusive rocks in the Wet Mountains area of Custer and Fremont Counties, south-central Colorado, USA This data release contains the whole-rock major and trace element analyses of 51 samples of intrusive igneous rocks from the Wet Mountains area of Custer and Fremont counties of south-central Colorado, collected by U.S. Geological Survey (USGS) geologists. The samples were collected from breccias, veins and thin dikes, and a variety of carbonatite, felsic, mafic, and ultramafic intrusions across the area. The first 41 samples listed in this data release were collected in July 2007, originally as part of a reconnaissance study of the thorium deposits of the area (Van Gosen and others, 2009). The samples are grab samples from outcrops, shallow open-pit excavations, and mineral prospect trenches. The last 10 samples... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Custer County, DOI, Democrat Creek, Department of the Interior, All tags... Economic Geology, Energy and Minerals Mission Area, Fremont County, GGGSC, Gem Park, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, ICP-AES, ICP-MS, Inductively Coupled Plasma-Atomic Emission Spectrometry, Inductively Coupled Plasma-Mass Spectrometry, Iron Mountain, MRP, McClure Mountain, Mineral Resources, Mineral Resources Program, Region 7: Upper Colorado Basin, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), USGS:5e7130b3e4b01d50926823f3, United States of America, WDXRF, Wavelength Dispersive X-Ray Fluorescence Spectrometry, Wet Mountains, data release, economic geology, geochemistry, geology, geoscientificinformation, mass spectroscopy, metallic mineral resources, mineral resources, rare earth elements, south-central Colorado, thorium, Fewer tags « 1 2 3 4 5 ... 10 »