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    • Sediment Data from the Great Bay Estuarine System acquired in 1986 (NELSON86 shapefile)

    Metadata Updated: January 6, 2026

    The sediment data presented in this data layer were from a geochemical study sited in Great Bay estuarine system of New Hampshire. Textural data were used to support interpretations of trace metal distributions. The analog data were originally converted into digital form for inclusion in a Gulf of Maine Contaminated Sediments Database.

    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.

    Downloads & Resources

    Dates

    Metadata Created Date January 6, 2026
    Metadata Updated Date January 6, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 6, 2026
    Metadata Updated Date January 6, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_9106eb60-6b6c-4c08-b1c6-a3ceb732d97e
    Data Last Modified 2021-11-16T00:00:00Z
    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 e4f884e7-05cb-4fc6-9927-82aae5f39a42
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -70.926940, 43.040560, -70.759170, 43.179170
    Source Datajson Identifier True
    Source Hash e5f62d0488c252d169d35b5deac4d2477b3ab907bb2abf1cee7e6b4fc4231d8f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -70.926940, 43.040560, -70.926940, 43.179170, -70.759170, 43.179170, -70.759170, 43.040560, -70.926940, 43.040560}

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