Filters: partyWithName: U.S. Geological Survey (X) > Types: Map Service (X) > partyWithName: U.S. Geological Survey - ScienceBase (X) > partyWithName: Michaela R Johnson (X)

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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 Directory of Public Repositories of Geological Materials Overview This directory was developed to provide discovery information for anyone looking for publicly accessible repositories that house geological materials in the U.S. and Canada. In addition, this resource is intended to be a tool to facilitate a community of practice. The need for the directory was identified during planning for and follow-up from a drill core repository webinar series in Spring 2020 for public repository curators and staff in the U.S. and Canada hosted by the Minnesota Geological Survey and the Minnesota Department of Natural Resources. Additional supporting sponsors included the U.S. Geological Survey National Geological and Geophysical Data Preservation Program and the Association of American... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alabama, Alaska, Alberta, Arkansas, British Columbia, All tags... Canada, Colorado, Connecticut, Delaware, Economic Geology, Energy Resources, Florida, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Marine Geology, Maryland, Massachusetts, Michigan, Mineral Resources, Minnesota, Missouri, Nebraska, Nevada, New Jersey, New York, Newfoundland, North Carolina, North Dakota, Northwest Territories, Nova Scotia, Ohio, Oklahoma, Ontario, Pennsylvania, Saskatchewan, South Carolina, South Dakota, Texas, USGS Science Data Catalog (SDC), United States, Utah, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Yukon, directories, drilling and coring, fossils, geoscientificInformation, igneous rocks, metamorphic rocks, mineral deposits, petroleum, sample repositories, sedimentary rocks, specimen collecting, unconsolidated deposits, 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 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 Reanalysis of Selected Archived NURE-HSSR Sediment and Soil Samples from Alaska Selected archived sample splits collected as part of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program, were reanalyzed by the U.S. Geological Survey (USGS) as part of a NURE-HSSR Reanalysis project (Smith and others, 2018). A small amount (approximately 0.25 grams [g]) of sieved less than 75-micron sample material was retrieved from the USGS National Geochemical Sample Archive for geochemical analysis. These samples were analyzed for 51 elements under a Technical Assistance Agreement with a third party by ALS Global laboratories using their ultra-trace four-acid-digestion dual-mode inductively coupled plasma-optical emission spectrometry/mass spectrometry... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, DOE, Economic Geology, GGGSC, Geochemistry, All tags... Geology, Geophysics, and Geochemistry Science Center, Hydrogeochemistry and Stream Sediment Reconnaissance, Iliamna, Lake Clark, Mineral Resources, NURE, NURE-HSSR, National Geochemical Sample Archive, National Uranium Resource Evaluation, Pebble Deposit, U.S. Department of Energy, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), United States, chemical analysis, environmental geochemistry, exploration geochemistry, geochemical data, geochemistry, lake sediment, natural resource exploration, sediment chemistry, sediment geochemistry, stream sediment, unconsolidated deposits, uranium, Fewer tags Corescan© Hyperspectral Core Imager, Mark III system data collected for the characterization of mineral resources near Nabesna, Alaska, 2014-2016 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... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Alaska, Alaska, Alaska Range, Bond Creek, Canada, All tags... ENVI, Environment for Visualizing Images, GGGSC, Geology, Geophysics, and Geochemistry Science Center, MRP, Mineral Resources Program, Nabesna, Nabesna A-2 quadrangle, Nabesna A-4 quadrangle, Nabesna B-4 quadrangle, Nikonda Creek, Nutzotin Mountains, Orange Hill, SWIR, USGS Science Data Catalog (SDC), 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 Airborne Geophysical Survey Inventory of the Conterminous United States, Alaska, Hawaii, and Puerto Rico (ver. 5.0, April 2024) This data release is a compilation of the locations of airborne geophysical surveys in the United States. The inventory documents public airborne geophysical surveys primarily flown by or contracted by the USGS from 1943 to present. In addition, surveys from the State of Alaska, Department of Natural Resources, Division of Geological and Geophysical Surveys (DGGS): Airborne GeophysWeb, the Bureau of Land Management, the Department of Energy and other state agencies have also been included. The surveys have contributed to studies under USGS programs including Water, Geologic Mapping, Minerals, Energy, Environmental Health, Ecosystems, Hazards, and Climate. This dataset contains locations for known and inventoried... Categories: Data, Data Release - Revised; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alabama, Alaska, Arizona, Arkansas, California, All tags... Colorado, Connecticut, Delaware, District of Columbia, Earth MRI, Florida, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, MRP, Maine, Maryland, Massachusetts, Michigan, Mineral Resources Program, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, USGS Science Data Catalog (SDC), Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, frequency-domain, geophysical, geophysics, geophysics, geoscientificInformation, geospatial datasets, gravitational field (earth), resistivity, time-domain, Fewer tags Airborne electromagnetic and magnetic survey data, Stillwater Complex, Montana, May 2000 (ver. 2.0, June 2020) 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 comprises 1,914 line kilometers, including tie lines. Flight lines were flown in an azimuthal direction of... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Montana, USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, geology, All tags... geophysics, geoscientificInformation, resistivity, Fewer tags Geochemical analyses of surface water, groundwater and springs surrounding Mount Emmons near Crested Butte, Colorado (ver. 2.0, September 2020) The U.S. Geological Survey (USGS), Colorado Division of Reclamation, Mining and Safety (DRMS), and Coal Creek Watershed Coalition (CCWC) working independently, have intermittently collected samples of surface- and groundwater and springs around Mount Emmons, near Crested Butte, Colorado. This data release is a compilation of the comprehensive inorganic chemical analyses conducted as a result of that sampling. The earliest samples were collected in the summer of 1997, and subsequent sampling has continued through 2019. Water samples collected in the Elk Creek basin, sample identifiers starting with EC, have been previously published in three U.S. Geological Survey reports; Verplanck and others, 2007, Manning and... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CWCC, Coal Creek, Coal Creek Watershed Coalition, Colorado, Colorado Division of Reclamation, Mining and Safety, All tags... Crested Butte, DOE, DRMS, Daisy Mine, Department of Energy, Elk Creek, GGGSC, Geology, Geophysics, and Geochemistry Science Center, ICP-AES, ICP-MS, Independence Basin, Lake Irwin, MRP, Mineral Resources Program, Mount Emmons, Oh-be-joyful Creek, Peeler Basin, Red Lady Basin, Redwell Basin, Slate River, Splains Gulch, Standard Mine, State of Colorado, USGS Science Data Catalog (SDC), Wildcat Creek, Wolverine Basin, alteration, cadmium, chemical analysis, economy, geoscientificInformation, inductively coupled plasma mass spectrometry, inductively coupled plasma-atomic emission spectrometry, lead, metallic mineral resources, mineral deposits, mineralogy, water chemistry, water sampling, zinc, Fewer tags Magnetotelluric Data from the San Andreas Fault, Loma Prieta CA, 1989-1990 The U.S. Geological Survey (USGS) Geology, Geophysics and Geochemistry Science Center (GGGSC) collaborated with the USGS Science Analytics and Synthesis (SAS) team to preserve and release a subset of magnetotelluric data from the San Andreas Fault in Loma Prieta, California. The San Andreas Fault data were collected by the Branch of Geophysics, a precursor to the now GGGSC, between 1989 and 1994. The magnetotelluric data selected for this preservation project were collected in 1989 and 1990 using USGS portable truck mounted systems that measure the distribution of electrical conductivity beneath the surface of the earth. Truck mounted systems of this era output data to 3.5” discs, from which data were recovered... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, EDI, Electrical Data Interchange, Fresno County, Geology, Geophysics, and Geochemistry Science Center (GGGSC), All tags... Loma Prieta, Map Service, Mineral Resources Program (MRP), Monterey County, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, San Andreas Fault, San Andreas Fault System, USGS Science Data Catalog (SDC), electromagnetic surveying, faulting (geologic), geophysics, geoscientificInformation, legacy data, magnetotelluric sounding, magnetotelluric surveying, Fewer tags