Mössbauer spectroscopic study of meteorites recovered on Antarctica

Details Mössbauer spectroscopic study of meteorites recovered on Antarctica Mössbauer spectroscopic study of meteorites recovered on Antarctica

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hyint..91..557e&link_type=abstract

Hyperfine Interactions, Volume 91, Issue 1, pp.557-561

Computer Science

Scientific paper

The chemical states of iron in sixteen Antarctic meteorites belonging to H-group chondrites were studied by means of Mössbauer spectroscopy. An Fe-Ni alloy, troilite, paramagnetic Fe(III), and two kinds of paramagnetic Fe(II) were observed in each meteorite. The Mössbauer parameters indicated that the Fe(II) components can be assigned to olivine and some pyroxenes. The relative area intensities of Fe(III) in the chondrites correlated positively with iodine content, which was determined by radiochemical neutron activation analysis, and those of two Fe(II)-species correlated negatively with the content. On the basis of the data on the halogen and the Mössbauer spectrocopy, the terrestrial contamination on Antarctic meteorites is discussed.

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