Strontium and lead isotopic ratios, heterogeneous accretion of the Earth, and mantle plumes

Details Strontium and lead isotopic ratios, heterogeneous accretion of the Earth, and mantle plumes Strontium and lead isotopic ratios, heterogeneous accretion of the Earth, and mantle plumes

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976gecoa..40..482h&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 40, Issue 4, pp.482-485

Computer Science

1

Scientific paper

If the Earth formed by accretion of volatile-rich material on to a refractory, primitive body with incomplete subsequent mixing, old or deep-seated igneous rocks should exhibit an anti-correlation between radiogenic Pb and radiogenic Sr. The ancient Amîtsoq gneiss and some modern oceanic rocks appear to comply with this model. Mantle plumes should not be a source of radiogenic Sr.

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