Primordial helium entrained by the hottest mantle plumes

M. G. Jackson (), J. G. Konter and T.W. Becker
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M. G. Jackson: University of California Santa Barbara
J. G. Konter: School of Ocean and Earth Science and Technology, University of Hawaii, Manoa
T.W. Becker: Jackson School of Geosciences, University of Texas at Austin

Nature, 2017, vol. 542, issue 7641, 340-343

Abstract: Analysis of helium isotope ratios in volcanic hotspot lavas suggests that hotter, more buoyant plumes upwelling from the deep mantle entrain high-3He/4He material, unlike cooler, less buoyant plumes, implying the existence of a dense, relatively undisturbed primordial reservoir in the deep mantle.

Date: 2017
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DOI: 10.1038/nature21023

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