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    • Density and magnetic susceptibility measurements on Precambrian rocks in the central Upper Peninsula, Michigan, 2021-2022

    Metadata Updated: November 22, 2024

    The U.S. Geological Survey (USGS) collected rock physical property measurements to help understand causative sources of gravity and magnetic survey anomalies in the central Upper Peninsula of Michigan. A total of 1,460 measurements of magnetic susceptibility and density from 61 outcrops and 37 boreholes have been conducted on Precambrian rocks. The measurements aid in interpretation of gravity and airborne magnetic data that are helping to understand Precambrian geology and potential mineral resources. For outcrop measurements, lithologic info is provided. Sample locations were determined using handheld Global Position System units. Measurements from drill core samples at the State of Michigan public core facility in KI Sawyer and the Cleveland Cliffs Inc. drill core facility in Ishpeming are also presented. For these measurements, the drill hole name, depth, and lithologic unit are provided. We thank Cleveland Cliffs Inc. for allowing access to their drill core facility and outcrops on their lands.

    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 November 22, 2024
    Metadata Updated Date November 22, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 22, 2024
    Metadata Updated Date November 22, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/b8b043e93a6621292b600141eb4f4b85
    Identifier USGS:66b689f1d34eebcf8bb39642
    Data Last Modified 20241120
    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 cde8013e-a8fe-49fd-871d-09feb088d2e8
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -88.7738,45.8871,-86.9801,46.652
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash afa2d243af11f216e65dedf55320d06ecad1667c0bea7ef35ac3a9a50c0b8f3f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -88.7738, 45.8871, -88.7738, 46.652, -86.9801, 46.652, -86.9801, 45.8871, -88.7738, 45.8871}

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