Steens Basalt Sr, Nd, Pb, Hf, Os, and O Isotopic Compositional Data
Moore, Nicole E; ORCID: 0000-0002-4202-8541
Grunder, Anita L
Bohrson, Wendy A
Carlson, Richard W
Bindeman, Ilya N
This dataset presents analyses of Sr, Nd, Pb, Hf, Os, and O whole rock and mineral isotopic compositions for a suite of basalts from the type section of the Steens Basalt at Steens Mountain in southeast Oregon, and other regional outcrops of the Steens Basalt. The Steens Basalt (~16.9 Ma) is the oldest and most mafic member of the Columbia River Basalt Group (CRBG), the world’s youngest continental flood basalts. These data help further characterize the three-stage evolution of the Steens Basalt magmatic system, by elucidating mantle source components that contributed to magma generation, as well as crustal processes that modified the magmas during ascent through and storage within the crust prior to eruption.
How to cite this dataset:
Moore, N. E., Grunder, A. L., Bohrson, W. A., Carlson, R. W., Bindeman, I. N., 2020. Steens Basalt Sr, Nd, Pb, Hf, Os, and O Isotopic Compositional Data, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). https://doi.org/10.1594/IEDA/111473.
DOI Creation Date:
Moore, N.E., Grunder, A.L., Bohrson, W.A., Carlson, R.W., Bindeman, I.N. (2020), "Changing mantle sources and the effects of crustal passage on the Steens Basalt, SE Oregon: Chemical and isotopic constraints", submitted to Geochemistry, Geophysics, Geosystems January 4, 2020.
Creative Commons Attribution-ShareAlike 4.0 International [CC BY-SA 4.0]
National Science Foundation: 1427716
National Science Foundation: 1427737
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Columbia River Flood Basalt, North American Continent
User Contributed Keyword(s):
isotope compositions, flood basalt, continental flood basalt, steens basalt, columbia river basalt
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