Mass spectrometric isotope dilution analyses of tellurium in meteorites and standard rocks

Details Mass spectrometric isotope dilution analyses of tellurium in meteorites and standard rocks Mass spectrometric isotope dilution analyses of tellurium in meteorites and standard rocks

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977gecoa..41..676s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 41, Issue 5, pp.676-681

Physics

5

Scientific paper

A stable isotope dilution technique using solid source mass spectrometry has been used to determine the elemental abundance of Te in 25 chondrites, 3 achondrites, 1 tektite, and 12 standard rocks. Mean values for the C1, C2, and CV3 meteorites are 2.34, 1.48, and 1.03 ppm, respectively; or atomic abundances for Te (normalized to Si = 10 6 atoms) of 4.84, 2.49, and 1.46. The atomic abundance obtained for the C1 chondrite Orgueil is significantly lower than the accepted value of 6.42. As a consequence we recommend that the `cosmic' abundance of Te and Xe should be re-examined. The depletion ratio for Te in ordinary chondrites of 0.10, is about the same as that for Zn. Elemental abundances of Te in 12 standard rocks are in the ppb range.

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