The geochemistry of Sc: A comparison to the rare earths and Fe

Details The geochemistry of Sc: A comparison to the rare earths and Fe The geochemistry of Sc: A comparison to the rare earths and Fe

Jan 1968

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968gecoa..32...93n&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 32, Issue 1, pp.93-108

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Scientific paper

Results of neutron activation analyses for Sc and Fe in 76 samples of igneous and sedimentary rock, including 9 composites, are reported. The highest Sc contents (average, 30-40 ppm) were found in basalts and gabbros and the lowest in nepheline syenites and limestones (~1 ppm). No evidence for the close geochemical relationship which might be expected between Sc and the heaviest rare earths on the basis of ionic size, charge, electronegativity etc. was found. The presently available evidence does not support predictions for a close geochemical relationship between Sc 3+ and Fe 2+ , Mg 2+ , or any other major element or ion in igneous rocks. A possible coherence between Sc and Fe in sedimentary rocks was found.

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