Moore, N., Grunder, A., Bohrson, W., Carlson, R., Bindeman, I. 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.
Steens Basalt Sr, Nd, Pb, Hf, Os, and O Isotopic Compositional Data
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.
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Columbia River Flood Basalt, North American Continent
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.
User Contributed Keyword(s):
isotope compositions, flood basalt, continental flood basalt, steens basalt, columbia river basalt
National Science Foundation: 1427737
National Science Foundation: 1427716
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