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Asthenosphere–lithosphere interactions in Western Saudi Arabia: Inferences from <sup>3</sup>He/<sup>4</sup>He in xenoliths and lava flows from Harrat Hutaymah

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Konrad, Kevin, David W. Graham, Carl R. Thornber, Robert A. Duncan, Adam J.R. Kent, Abdullah Al-Amri (2016) Asthenosphere-Lithosphere Interactions in Western Saudi Arabia: Inferences from 3He/4He in Xenoliths and Lava Flows from Harrat Hutaymah, LITHOS, 248-251, p 339-352

Summary

Extensive volcanic fields on the western Arabian Plate have erupted intermittently over the last 30 Ma following emplacement of the Afar flood basalts in Ethiopia. In an effort to better understand the origin of this volcanism in western Saudi Arabia, we analyzed3He/4He, and He, CO2 and trace element concentrations in minerals separated from xenoliths and lava flows from Harrat Hutaymah, supplemented with reconnaissance He isotope data from several other volcanic fields (Harrat Al Birk, Harrat Al Kishb and Harrat Ithnayn). Harrat Hutaymah is young (< 850 ka) and the northeasternmost of the volcanic fields. There is a remarkable homogeneity of 3He/4He trapped within most xenoliths, with a weighted mean of 7.54 ± 0.03 RA (2σ, n = 20). [...]

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Harvested on Thu Mar 31 04:18:57 MDT 2016 from MODS XML Service

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Type Scheme Key
local-index unknown 70168926
local-pk unknown 70168926
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1016/j.lithos.2016.01.031
series unknown LITHOS

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journalLITHOS
parts
typevolume
value248-251
languageEnglish
citationTypeArticle

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