Elemental and Lead-Hafnium-Neodymium-Strontium Isotopic Composition of a Suite of Northwest Hawaiian Ridge Postshield Lavas
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.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
]
|
| contactPoint |
{
"fn": "Lauren N Harrison",
"@type": "vcard:Contact",
"hasEmail": "mailto:lnharrison@usgs.gov"
}
|
| description | 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. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Digital Data",
"format": "XML",
"accessURL": "https://doi.org/10.5066/P9KBI0Y1",
"mediaType": "application/http",
"description": "Landing page for access to the data"
},
{
"@type": "dcat:Distribution",
"title": "Original Metadata",
"format": "XML",
"mediaType": "text/xml",
"description": "The metadata original format",
"downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.641b258ad34e4c337f0c2201.xml"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/USGS_641b258ad34e4c337f0c2201 |
| keyword |
[
"Geochemistry",
"Hawaii",
"Isotopes",
"Major and Trace Elements",
"Oceanic Island Basalt",
"USGS:641b258ad34e4c337f0c2201"
]
|
| modified | 2023-04-21T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | 171.0000, 22.2688, -165.0000, 39.0000 |
| theme |
[
"Geospatial"
]
|
| title | Elemental and Lead-Hafnium-Neodymium-Strontium Isotopic Composition of a Suite of Northwest Hawaiian Ridge Postshield Lavas |
