Meteoritic and terrestrial rare earth abundance patterns

Details Meteoritic and terrestrial rare earth abundance patterns Meteoritic and terrestrial rare earth abundance patterns

Jan 1962

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1962gecoa..26...81t&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 26, Issue 1, pp.81-88

Physics

Scientific paper

The relative abundances of the rare earths in chondrites determined by et al . (1960) differ from those in most common terrestrial rocks. Attention is drawn to a set of determinations in casic igneous rocks by (1945) in which the pattern is similar to the chondritic abundance relations. It is concluded that the earth and chondrites contain similar relative amounts of the rare earths, and that those of lower atomic number have been selectively enriched in crustal rocks. This fractionation is attributed to differences in the radii of the trivalent ions.

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