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    • Frequency Domain Electromagnetic (FDEM) Surveys Collected in Fredericktown, Missouri, June 2018

    Metadata Updated: July 6, 2024

    In June 2018, U.S. Geological Survey (USGS) in cooperation with the U.S. Environmental Protection Agency (EPA) collected geophysical measurements to help evaluate the suitability of a proposed landfill site for disposing mine-waste materials in Fredericktown, MO. Frequency domain electromagnetic (FDEM) induction data were collected above the land surface along the cleared paths through the proposed disposal cell locations. The data were collected with a hand-held, multi-frequency antenna carried approximately 1 meter (m) above the land surface at walking speeds using a multi-frequency tool. All unprocessed and processed data including the in-phase and quadrature components in parts per million, electrical conductivity (EC) in milliSiemens per meter (mS/m), and magnetic susceptibility in parts per thousand are served in this data release. In addition, the data were inverted to generate depth dependent estimates of conductivity along the profiles. An analysis of the depth of investigation indicated the FDEM reliably estimated conductivity values to depths of about 3 m below land surface. These output data are also served in this data release.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/76edc8dfe6f0bace54d32ef7b03d5455
    Identifier USGS:5cb777f1e4b0c3b0065d7d34
    Data Last Modified 20200818
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://datainventory.doi.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id bf2ff25e-e631-4391-a70d-50daca55d92b
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -90.311825,37.5745,-90.305,37.5852
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 98b297e3731fbbb06cd8f3cb4d901a8160b0c13dc0e3f0c5045ea1ae5b6aed5f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -90.311825, 37.5745, -90.311825, 37.5852, -90.305, 37.5852, -90.305, 37.5745, -90.311825, 37.5745}

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