The abundances of Li, Se, Sr, Ba and Zr in chondrites and some ultramaflc rocks

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Scientific paper

Quantitative spectrochemical determinations of Li, Sc, Sr, Ba and Zr in 21 specimens of chondrite, 7 other silicate meteorites and 13 ultramafic rocks are presented and discussed. Abundances in chondrites have been determined as: Li (2.7 ppm), Sc (6 ppm), Sr (11 ppm), Ba (8 ppm) and Zr (33 ppm). Each element shows a high degree of uniformity of abundance; distribution is possibly lognormal. -activity of Rb 87 is calculated to generate ~13% of total Sr 87 in chondrites.

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