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LaserProfiler Corescan© Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand samples, and subsequent billets made from the hand samples, collected during the U.S. Geological Survey (USGS) 2014, 2015, and 2016 field seasons in the Nabesna area of the eastern Alaska Range. This area contains exposed porphyry deposits and hand samples were collected throughout the region in support of the HyMap imaging spectrometer survey (https://doi.org/10.5066/F7DN435W) (Kokaly and others, 2017a). The HCI-III system consists of three different components. The first is an imaging spectrometer which collects reflectance data with a spatial resolution of approximately 500 nanometers (nm) for 514 spectral channels covering... Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, VNIR, Valdez-Cordova County, Wrangell Mountains, Wrangell–Saint Elias National Preserve, Yukon Territory, economy, geoscientificInformation, hyperspectral imaging, imaging spectroscopy, infrared imaging, mineral resources, mineralogy, remote sensing, shortwave infrared, spectroscopy, visible-near infrared, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTCC04 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTGK01 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTGK06 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTGK07 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTGK05 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTMB02 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags Geochemical reanalysis of rock and sediment samples from the Lower Middle Fork of the Salmon River collected as part of the Idaho Primitive Area Studies in the 1960’s through 1980’s This is a geochemical data set from the reanalysis of 44 rock samples collected between 1966 and 1970, and 107 sediment samples collected in 1966 and 1967. These samples were collected by the U.S. Geological Survey for a study investigating the mineral resources of the Idaho Primitive Area (Cater et al., 1973). The samples are from the Lower Middle Fork of the Salmon River, including the tributaries of Big Creek, Camas Creek, Brush Creek, Wilson Creek, Waterfall Creek, Ship Island Creek, Reese Creek, Stoddard Creek, and Papoose Creek. The overall objective of this study is to characterize the regional impact of legacy mining for the Frank Church River of No Return Wilderness Area. Mary P. Rossillon (1981) explored... Categories: Data; Tags: Annie Creek, Atomic absorption analysis, Atomic emission spectroscopy, Beaver Creek, Big Creek, All tags... Big Ramey Creek, Biotite, Biotite-feldspar, Biotite-muscovite, Botha Creek, Brush Creek, Cabin Creek, Calc-silicate rock, Camas Creek, Camp Creek, Canyon Creek, Cave Creek, Challis intrusive, Challis volcanic group, Chemical analysis, Chlorite-biotite, Cliff Creek, Coin Creek, Copper Creek, Coxey Creek, Crooked Creek, Diorite, Eagan Creek, Fawn Creek, GGGSC, Geochemistry, Geochemistry, Geology, Geology, Geophysics, and Geochemistry Science Center, Glacial deposit, Gneiss, Granite, Granodiorite, Hand Creek, Holy Terror Creek, Hornblende-biotite, Idaho, Idaho Primitive Area, Jackass Creek, Lake Creek, Lapilli tuff, Latite, Lehmi group, Lewis Creek, Little Marble Creek, Little Ramey Creek, Logan Creek, Lower Middle Fork Salmon, MRP, Mass spectroscopy, Metasedimentary rock, Middle Fork Salmon River, Middle Fork terraces, Migmatite, Mineral Resources Program, Monumental Creek, Moore Creek, Mule Creek, Neoproterozoic intrusive, Paint Creek, Papoose Creek, Parker Mountain, Phyllite, Porphyry, Quartzite, Quartzose, Rainbow Creek, Reese Creek, Rhyolite, Rush Creek, Schistose, Seafoam, Sedimentology, Ship Island Creek, Smith Creek, Snowslide Creek, Stoddard Creek, Sunnyside tuff, Syenite, Telephone Creek, Threemile Creek, Thunder Mountain, Timm Creek, Trap Creek, USGS Science Data Catalog (SDC), United States, Waterfall Creek, Wildhorse Creek, Wilson Creek, Windermere supergroup, Woodtick Creek, Yellowjacket, Yellowjacket Creek, 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 Total neutron scattering of methane in Niobrara Formation samples at the wet-gas maturity level Petroleum within unconventional source-rock reservoirs is hosted in organic matter and mineral pore space as well as in voids and microfractures. Recent work has shown that for source-rock reservoirs in the dry gas window, significant portions of methane (CH4), the main component of petroleum at elevated maturities, can be stored within fine organic matter porosity. However, within reservoirs at lower thermal maturities (e.g., peak oil or wet-gas conditions), the distribution and behavior of CH4 and the higher alkanes that comprise gas condensates across pore sizes is unclear, especially for fine pores with diameters <50 nm. Understanding CH4 within these settings provides insight for petroleum generation, movement,... Categories: Data; Tags: Colorado, Contrast Matching, Denver-Julesburg Basin, Energy Resources, Gas Condensate, All tags... Geochemistry, Natural Gas, Neutron Scattering, Shale, USGS Science Data Catalog (SDC), Fewer tags Magnetic susceptibility and density measurements in the Wet Mountains, Colorado, 2022 to 2023 The U.S. Geological Survey (USGS) collected rock magnetic susceptibility and density measurements to understand the causative sources of airborne magnetic and ground gravity survey anomalies in the Wet Mountains, Colorado. A total of 609 magnetic susceptibility and 86 density measurements were collected from outcrops and hand samples, respectively, from July 2022 to June 2023. These measurements aid the interpretation of newly collected geophysical data to identify concealed Ediacaran-Ordovician alkaline igneous features and potential rare earth element deposits. On average, 16 magnetic susceptibility and 4 density measurements were taken from each outcrop/hand sample to best represent the lithology. Outcrop/sample... Categories: Data; Tags: Colorado, Custer County, Earth MRI, Earth Mapping Resources Initiative, Fremont County, All tags... GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, MRP, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), bulk density, geoscientificInformation, magnetic susceptibility, magnetic susceptibility analysis, Fewer tags Geochemistry of rocks and rock fabric data near the hanging wall contact to the Reef Package, Stillwater Complex, Montana, USA The Reef Package is a sequence of coarse-grained cumulates that host the J-M Reef Pd-Pt deposit in the Stillwater Complex of Montana. The top of the Reef Package marks the top of economic-grade platinum-group element mineralization and is identified by a distinct change in rock fabric, from the coarse-grained rocks of the Reef Package to finer-grained cumulates in the hanging wall. This dataset tabulates whole-rock major, minor, and trace element geochemistry of rock samples collected from diamond drill holes that intersect the textural discontinuity at the top of the Reef Package from the underground working of the Stillwater Mine. The dataset also tabulates rock fabric data collected by electron backscatter diffraction... Categories: Data; Tags: Economic Geology, Geochemistry, Mineral Resources, Montana, USGS Science Data Catalog (SDC), All tags... biota, economic geology, geochemistry, igneous rocks, platinum-group elements, 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 Thin section images of xenoliths from north of the Stillwater Complex, Montana This dataset includes photographic images of thin sections made from xenolith samples collected from the Sliderock Mountain and Susie Peak plutons, Montana, along with a shapefile representing the locations of the samples. The plutons are located north of the Stillwater Complex, Montana, which is exposed along the northern side of the Beartooth Mountains in Montana. To the north of the Stillwater Complex, a gravity anomaly is located where Phanerozoic rocks may unconformably overlie the complex. These Phanerozoic rocks are intruded by Cretaceous plutons that have gabbroid inclusions that resemble other metamorphosed rocks of the Stillwater Complex. Samples of the inclusions were collected, and thin sections were... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Mineral Resources, Montana, Stillwater, Sweet Grass, USGS Science Data Catalog (SDC), All tags... geoscientificInformation, petrography, Fewer tags Spatial data associated with tungsten skarn resource assessment of the Northern Rocky Mountains, Montana and Idaho A mineral resource assessment was performed by the U.S. Geological Survey (USGS) to assess the potential of undiscovered skarn-hosted tungsten resources in the Northern Rocky Mountain region of eastern Idaho and western Montana. This region has seen moderate tungsten trioxide (WO3) production in the past from a variety of mineralization styles including skarn, vein and replacement, and wolframite-quartz veins. The geology of the area is dominated by large plutons of Cretaceous to Tertiary age, emplaced into a belt of sedimentary rock ranging from Mesoproterozoic to Permian age, and affected by tectonism related to the Sevier and later Laramide orogenies. Known tungsten (W) skarn mineral sites are associated with... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Ashton, Bald Mountain, Beaverhead County, Bitterroot Range, Boise County, All tags... Bozeman, Broadwater County, Butte, Challis, Choteau, Cretaceous, Custer County, Deer Lodge County, Dillon, Dubois, Elk City, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Granite County, Great Falls, Hamilton, Helena, Idaho, Idaho County, Jefferson County, Lewis and Clark County, Little Belt Mountains, MRP, Madison County, Mesoproterozoic, Mineral Resources Program, Montana, Northern Rocky Mountains, Paleozoic, Pioneer Mountains, Powell County, Ravali County, Rocky Mountain, Silver Bow County, Tertiary, Thompson Creek, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, Valley County, Wallace, White Sulphur Spring, Yellow Pine, economic geology, economy, geochemistry, geophysics, geoscientificInformation, idaho, igneous rocks, metallic mineral resources, mineral assessment, mineral assessment, mineral deposits, mineral resources, montana, plutonic rocks, rocks and deposits, sedimentary rocks, tungsten, tungsten, Fewer tags New source rock data for the Mowry and Thermopolis Shales in the Wind River Basin, Wyoming In 2020, the U.S. Geological Survey (USGS) assessed the potential for undiscovered, technically recoverable continuous (unconventional) oil and gas resources in the Mowry Shale in the Wind River Basin Province (Finn and others, 2021). To better characterize the source rock potential of the Mowry Shale and associated strata, 129 samples were collected from 45 wells from the well cuttings collection stored at the USGS Core Research Center in Lakewood, Colorado. The sampled wells are located along the margins of the basin in order to obtain samples that were not subjected to the effects of deep burial and subsequent organic carbon loss due to thermal maturation (Daly and Edman, 1987) (fig. 1). One hundred samples are... Categories: Data; Tags: Energy Resources, Mowry Shale, Thermopolis Shale, USGS Science Data Catalog (SDC), Wind River, All tags... Wyoming, programmed pyrolysis, source rock, total organic carbon, well cuttings, Fewer tags Characteristics of Dust Associated with the Development of Rapidly Progressive Pneumoconiosis and Progressive Massive Fibrosis Research and surveillance reports have documented a significant increase in coal workers' pneumoconiosis, including the most severe forms of progressive massive fibrosis and rapidly progressive pneumoconiosis in U.S. coal miners, particularly those in Appalachian coalfields. Several possible explanations for these observations include excessive exposures to total respirable dust, increased exposure to freshly fractured silica and silicates, or greater exposure to smaller particles that may be the result of changing mining practices. This dataset contains the chemical and morphological characteristics of particulate matter retrieved from lung tissue slices of historical and contemporary miners. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Appalachia, Environmental Health, GGGSC, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, All tags... Mineral Resources, USGS Science Data Catalog (SDC), United States, chemical analysis, grain-size analysis, health, mass spectroscopy, scanning electron microscopy, Fewer tags Thin section images of drill core from the Crescent Creek area in the Stillwater Complex, Montana This dataset includes photographic images of thin sections of drill core from the Stillwater Complex, Montana, along with a shapefile representing the location of the drill hole. The core was drilled in order to study contact-type copper and nickel sulfide mineralization in the Stillwater Complex. The images of the entire thin section, both in plane- and cross-polarized light, were taken using a high-resolution digital camera on a macro stand. Each zip file, named with the drill hole identification number, contains the images for a single drill hole. In response to file size restrictions, the data were organized into two parts. The "p1" and "p2" folder designations represent parts 1 and 2. The data in each zip file... Tags: Economic Geology, Mineral Resources, Montana, Stillwater, Sweet Grass, All tags... USGS Science Data Catalog (SDC), geoscientificInformation, petrography, Fewer tags The State Geologic Map Compilation (SGMC) Geodatabase of the Conterminous United States The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States (https://doi.org/10.5066/F7WH2N65) represents a seamless, spatial database of 48 State geologic maps that range from 1:50,000 to 1:1,000,000 scale. A national digital geologic map database is essential in interpreting other datasets that support numerous types of national-scale studies and assessments, such as those that provide geochemistry, remote sensing, or geophysical data. The SGMC is a compilation of the individual U.S. Geological Survey releases of the Preliminary Integrated Geologic Map Databases for the United States. The SGMC geodatabase also contains updated data for seven States and seven entirely new State geologic... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags... Connecticut, Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, USGS Science Data Catalog (SDC), Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, age, bedrock geologic units, data services, dike, fault, fold, geographic information systems, geologic contacts, geologic map, geologic maps, geologic time periods, geology, geoscientificInformation, geospatial datasets, igneous rocks, metamorphic rocks, sedimentary rocks, structural geology, surficial geologic units, unconsolidated deposits, Fewer tags Audiomagnetotelluric sounding data in the Silverton Caldera complex, Colorado, 2018; Station AMTMB01 This dataset includes audiomagnetotelluric (AMT) sounding data collected in July 2018 in the Silverton Caldera complex, Colorado, in the Southern Rocky Mountain Volcanic Field, by the U.S. Geological Survey (USGS). Along with geologic mapping, airborne magnetics, airborne electromagnetics, and magnetotellurics, the USGS collected AMT data at 24 sites along four profiles ranging from 3 to 6 kilometers in length across the north-western structural margin of the Silverton caldera in Mineral Basin (MB01-MB05), across the south-eastern margin of the caldera along Cunningham Creek (CC01-CC05), within the caldera in Eureka Graben (EG01-EG05), and within the caldera along upper Cement Creek near the Gold King mine (GK01-GK09). Tags: "San Juan" County, AMT, Colorado, GGGSC, GPS measurement, All tags... Geology, Geophysics, and Geochemistry Science Center, MRP, MT, Mineral Resources Program, Silverton, apparent resistivity, audiomagnetotelluric, economy, electric field (earth), geophysics, geoscientificInformation, impedance, impedance phase, impedance strike, magnetic field (earth), magnetotelluric, magnetotelluric surveying, sounding, tipper, Fewer tags 1 2 3 4 5 ... 12 »