Young formation age of a mantle plume source

Details Young formation age of a mantle plume source Young formation age of a mantle plume source

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993natur.362..715c&link_type=abstract

Nature (ISSN 0028-0836), vol. 362, no. 6422, p. 715-721.

Computer Science

15

Earth Mantle, Earth Planetary Structure, Concentration (Composition), Radioactive Age Determination, Radioactive Decay

Scientific paper

The Ninetyeast Ridge hotspot track displays strontium, neodymium and lead isotope variations over time that reflect simple radioactive decay in the plume source rather than a change in the mantle components present. The lead isotope variations indicate that the time spent by the plume source in a non-convecting mantle boundary layer was only a few hundreds of millions of years, contrary to the conventional view of individual plume sources as old (1-3 Gyr) or persistent features.

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