Helium Isotopes and Helium and Carbon Dioxide Concentrations in Basaltic Vesicles and Glass from the Gulf of Aden
Abstract:
New helium isotope results for basalt glasses along the West and East Sheba Ridges in the Gulf of Aden reveal a strong mantle plume signal similar to that observed in the Main Ethiopian Rift, with 3He/4He ranging up to 17 Ra. This signal becomes fully attenuated by <400 km distance from the Afar triple junction. Eastward of the plume influence, from 45-56.5 degrees E, the Gulf of Aden shows uniform 3He/4He = 8.08+/-0.20 Ra (1 std dev, n=22). This region is the most uniform section of the global mid-ocean ridge system for helium isotopes at 100-1000 km length scales.
How to cite this dataset:
Graham, D. W., Michael, P. J., 2018. Helium Isotopes and Helium and Carbon Dioxide Concentrations in Basaltic Vesicles and Glass from the Gulf of Aden, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA).
https://doi.org/10.1594/IEDA/100614. Accessed 2024-12-21.
DOI Creation Date:
2016-10-21
Related
Publication(s):
Michael, P.J. and Graham, D.W., 2015. The behavior and concentration of CO2 in the suboceanic mantle: inferences from undegassed ocean ridge and ocean island basalts. Lithos, 236, pp.338-351.
License:
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC-BY-NC-SA-3.0]
Funding source(s):
National Science Foundation:
1259964Keyword(s):
Coverage Scope: Regional (Continents, Oceans)
Geographic Location: Gulf of Aden
User Contributed Keyword(s):
Gulf of Aden, Helium isotopes, volatiles, mid-ocean ridge
Bounding Coordinates:
North: 14.75 South: 11.747 East: 56.422 West: 43.022
Data Available On:
2018-10-15