Nature 305, 403 - 407 (29 September 1983); doi:10.1038/305403a0

Mantle plume noble gas component in glassy basalts from Reykjanes Ridge

Roger Hart^*, Jack Dymond^*, Lewis Hogan^* & Jean Guy Schilling^†

^*School of Oceanography, Oregon State University, Corvallis, Oregon 97331, USA
^†University of Rhode Island, Graduate School of Oceanography, South Ferry Road, Narragansett, Rhode Island 02882, USA

Basalts from the Reykjanes Ridge contain noble gases delivered from the non-degassed lower mantle by the Iceland plume. These lower mantle gases are thought to be a mixture of planetary and solar components, as would be expected if the Earth accreted from fine silicate particles.

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