A large-scale isotope anomaly in the Southern Hemisphere mantle

Details A large-scale isotope anomaly in the Southern Hemisphere mantle A large-scale isotope anomaly in the Southern Hemisphere mantle

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.309..753h&link_type=abstract

Nature, Volume 309, Issue 5971, pp. 753-757 (1984).

Physics

457

Scientific paper

Basalts from many Southern Hemisphere regions have anomalous Sr and Pb
isotopic characteristics. This article shows that the isotopic mantle
anomaly is globe-encircling in extent, centred on latitude 30° S.
Arguments suggesting that this mantle anomaly has been in existence for
billions of years place severe constraints on mantle convection models.

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