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    • Analysis for estimated percent sand in cores taken from San Francisco Bay, California, 1990-2016

    Metadata Updated: August 20, 2025

    Sediment analysis of cores collected in San Francisco Bay, San Pablo Bay, and the Carquinez Strait and Suisun Bay, California from 1990 to 2016 for percent sand. Handwritten core logs, x-radiographs, and the cores themselves, were examined for the presence of sand.

    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 August 20, 2025
    Metadata Updated Date August 20, 2025

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date August 20, 2025
    Metadata Updated Date August 20, 2025
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/522a3df1193af2a2e2494d53ab541327
    Identifier USGS:99df34cd-4f03-49b1-8588-5a694fa6f15d
    Data Last Modified 20250723
    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 b9cd76d1-f7c4-4e0c-b985-5b7164eee117
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -122.507046,37.44807,-121.863877,38.133552
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash dde89d526d93967793359f304f11804465a0974ee84e4724a08b58c6c401fc8a
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.507046, 37.44807, -122.507046, 38.133552, -121.863877, 38.133552, -121.863877, 37.44807, -122.507046, 37.44807}

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