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    • Fumarole gas geochemistry and tree-ring radiocarbon data at Mammoth Mountain, California (1989-2016)

    Metadata Updated: July 6, 2024

    Mammoth Mountain is a dacitic dome complex located on the southwestern rim of Long Valley Caldera, California. Mammoth Mountain has exhibited unrest over the past ~30 years, characterized by seismicity over a broad range of depths, elevated 3He/4He ratios in fumarolic gas and large-scale diffuse CO2 emissions. Monitoring of this unrest has included collection of fumarole gas samples for geochemical analysis and tree cores for radiocarbon analysis of annual growth rings. This report updates the long-term geochemical record at Mammoth Mountain, compiling the chemical and isotopic (d13C-CO2, 3He/4He) compositions of 59 gas samples collected from Mammoth Mountain fumarole from 1998 to 2016. In addition, we report radiocarbon compositions of 1989-2016 and 2013-2016 annual growth rings for the CTWP and HSL-1 lodgepole pines, respectively. The data sets are saved in spreadsheets in the *.csv format. The reader is referred to publications for details on sampling and analytical methods and data interpretations.

    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 June 1, 2023
    Metadata Updated Date July 6, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/62a9af5d404f82abeb98f8903f4a773b
    Identifier USGS:5c5dcfe9e4b0fe48cb32e618
    Data Last Modified 20200827
    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 a88f86a7-eddc-4420-81e0-f9df4dedb29c
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -119.05713611111,37.605797222222,-119.01175833333,37.649758333333
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash a44777ad71b5190d6eb33e4343c1f0dc68eb9a9108c408df493a1ba80ec67e86
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -119.05713611111, 37.605797222222, -119.05713611111, 37.649758333333, -119.01175833333, 37.649758333333, -119.01175833333, 37.605797222222, -119.05713611111, 37.605797222222}

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