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    • Digitized sonic velocity and density log data of Central Coast Ranges, California

    Metadata Updated: January 21, 2026

    Sonic velocity and density well logs in the Central Coast Ranges in California were digitized by hand. These logs are available as scanned files (pdfs and tiffs) on the California Division of Oil, Gas, and Geothermal Resources website and the data consist of interval transit times and bulk density measured downhole in oil and gas wells in the region. Sonic velocity data were also compiled from a number of sources. A summary table provides basic information of these wells, available on the California Division of Oil, Gas, and Geothermal Resources website.

    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 11, 2026
    Metadata Updated Date January 21, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2026
    Metadata Updated Date January 21, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_64b59e39d34e70357a2af6a4
    Data Last Modified 2023-08-14T00:00:00Z
    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
    Datagov Dedupe Retained 20260121130127
    Harvest Object Id d24dfb57-aa05-4c31-824e-5435ceb3ee75
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -121.6208, 34.4527, -121.6208, 36.8652, -119.5183, 36.8652, -119.5183, 34.4527, -121.6208, 34.4527}
    Source Datajson Identifier True
    Source Hash 86036a9f345eebe5a126bb8f64a1cf4800db3a830b9fba3c667f38e4672ef1e6
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -121.6208, 34.4527, -121.6208, 36.8652, -119.5183, 36.8652, -119.5183, 34.4527, -121.6208, 34.4527}

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