An ancient recipe for flood-basalt genesis

Matthew G. Jackson () and Richard W. Carlson
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Matthew G. Jackson: Boston University
Richard W. Carlson: Carnegie Institution of Washington

Nature, 2011, vol. 476, issue 7360, 316-319

Abstract: An early basalt emerges Matthew Jackson and Richard Carlson show that basalts from the largest volcanic event in geological history — the Ontong Java plateau — exhibit the isotopic and trace-element signatures previously proposed for an early-Earth mantle reservoir, first identified in 60-million-year-old Baffin Island lavas. This material was thought to be a rare and unique survivor in a dynamic mantle, but this new study suggests that large portions of the primitive mantle may have survived intact over the age of the Earth. The association of flood basalts with this ancient, surviving mantle reservoir suggests that it may be responsible for generating six of the largest volcanic events on Earth.

Date: 2011
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DOI: 10.1038/nature10326

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