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An ancient recipe for flood-basalt genesis

Author

Listed:
  • Matthew G. Jackson

    (Boston University)

  • Richard W. Carlson

    (Carnegie Institution of Washington)

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.

Suggested Citation

  • Matthew G. Jackson & Richard W. Carlson, 2011. "An ancient recipe for flood-basalt genesis," Nature, Nature, vol. 476(7360), pages 316-319, August.
    • Handle: RePEc:nat:nature:v:476:y:2011:i:7360:d:10.1038_nature10326
    DOI: 10.1038/nature10326
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