Mantle enrichment processes

Details Mantle enrichment processes Mantle enrichment processes

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.311..331h&link_type=abstract

Nature (ISSN 0028-0836), vol. 311, Sept. 27, 1984, p. 331-335. Sponsorship: Natural Environment Research Council.

Other

58

Abundance, Basalt, Earth Mantle, Isotopic Enrichment, Trace Elements, Neodymium, Silicates, Strontium

Scientific paper

A review of Sr- and Nd-isotope and selected trace element data in both within-plate basalts and mantle xenoliths suggests that at least two enrichment processes are active within the upper mantle. One is consistent with the migration of small volume silicate melts with 'basanitic' trace element distribution patterns, whereas the other is characterized by relatively high epsilon (Sr) Rb/Sr and K/Ti ratios, as observed in K-richterite-bearing periodotite xenoliths.

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