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    • Radioisotopic data from USGS laboratory in St. Petersburg, Florida

    Metadata Updated: September 14, 2025

    Specific activities of cesium-137 (half life = 30.17 years), lead-210 (half life = 22.3 years), radium-226 (half life = 1,600 years), thorium-234 (half life = 24.1 days), and potassium-40 (half life = 1.277 billion years) in disintegrations per minute per gram (dpm/g) were determined for the Lake Lanier cores. The laboratory errors (plus or minus) and the critical levels are included for each sample.

    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 September 14, 2025
    Metadata Updated Date September 14, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2025
    Metadata Updated Date September 14, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-5f49215182ce4c3d122b2a80
    Data Last Modified 2021-06-22T00:00:00Z
    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 725ae17d-1d19-4bf5-8624-7574627fa1ba
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -84.05710, 34.14577, -84.02206, 34.17545
    Source Datajson Identifier True
    Source Hash ba1b103c3a95024512d81f4c2a766467f640af109c046a4394122967dd86693b
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -84.05710, 34.14577, -84.05710, 34.17545, -84.02206, 34.17545, -84.02206, 34.14577, -84.05710, 34.14577}

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