Elemental and Lead-Hafnium-Neodymium-Strontium Isotopic Composition of a Suite of Northwest Hawaiian Ridge Postshield Lavas
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.
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.641b258ad34e4c337f0c2201.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9KBI0Y1 |
Tags
- major-and-trace-elements
- isotopes
- oceanic-island-basalt
- hawaii
- geochemistry
- usgs-641b258ad34e4c337f0c2201