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    • Magnetic susceptibility measurements on Archean rocks, northwestern Minnesota, 2021

    Metadata Updated: December 11, 2025

    Rock physical property measurements were collected on core samples to help understand the causative sources of gravity and magnetic survey anomalies in northwestern Minnesota. A total of 410 measurements of magnetic susceptibility and density on Archean core samples from 20 boreholes have been conducted. The measurements aid in interpretation of gravity and airborne magnetic data that are helping to understand Archean geology and potential mineral resources. Sample locations were determined from published borehole information (Jirsa and Boerboom, 1993). All cores sampled are stored by the Minnesota Department of Natural Resources core facility in Hibbing, MN. Additional geologic information on the cores is presented by Jirsa and Boerboom (1993). Jirsa, M. A., and Boerboom, T. J., 1993, Scientific and exploration drilling in northwestern Minnesota: Minnesota Geological Survey Information Circular 40, 96 p., https://hdl.handle.net/11299/59401.

    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 December 11, 2025
    Metadata Updated Date December 11, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 11, 2025
    Metadata Updated Date December 11, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-67477834d34e6d1dac3b0f9f
    Data Last Modified 2025-09-29T00:00:00Z
    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://ddi.doi.gov/usgs-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 92175083-ab58-4213-91ea-90d71fbf8ae6
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Source Datajson Identifier True
    Source Hash b48aa80c5136fbba4bf4793afe02cbeffa96f2be0a1dfe52b515389ba0ae7331
    Source Schema Version 1.1

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