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    • Elemental and Lead-Hafnium-Neodymium-Strontium Isotopic Composition of a Suite of Northwest Hawaiian Ridge Postshield Lavas

    Metadata Updated: July 6, 2024

    The Hawaiian-Emperor chain, the surface expression of the Hawaiian mantle plume which has been active for at least 81 Ma, is divided into the Emperor Seamounts (81-47 Ma), Northwest Hawaiian Ridge (NWHR, 47-6 Ma), and Hawaiian Islands (<6 Ma). Hawaiian volcanism evolves through four volcanic stages: alkalic preshield, tholeiitic shield (80-90% volcano volume), alkalic postshield (∼1%), and silica undersaturated rejuvenated (<0.1%). This data release contains tables with new data consisting of major element oxide concentrations, trace element concentrations, and radiogenic-isotope compositions (87Sr/86Sr, 143Nd/144Nd, 176Hf/177Hf, 206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb) from postshield basalts from 14 NWHR and young Emperor Seamount volcanoes (~8.5-55 Ma). These measurements were made on whole rock samples that were collected via legacy dredges or submersible remotely operated vehicle dives.

    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/2bc4582b701bcd6163280e1bc9b56e94
    Identifier USGS:641b258ad34e4c337f0c2201
    Data Last Modified 20230421
    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 d861ee93-4630-4a34-b92f-3e7eeeddcadd
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial 171.0,22.2688,-165.0,39.0
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 5d9ce482071ab59c28d106465562a8f70d7420f7c8caf7f63e56bb80eba54276
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": 171.0, 22.2688, 171.0, 39.0, -165.0, 39.0, -165.0, 22.2688, 171.0, 22.2688}

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