The chemical classification of iron meteorites--VII. A reinvestigation of irons with Ge concentrations between 25 and 80 ppm

Details The chemical classification of iron meteorites--VII. A reinvestigation of irons with Ge concentrations between 25 and 80 ppm The chemical classification of iron meteorites--VII. A reinvestigation of irons with Ge concentrations between 25 and 80 ppm

Aug 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37.1957s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 37, Issue 8, pp.1957-1976

Computer Science

23

Scientific paper

We report Ni, Ga, Ge and Ir concentrations for 193 irons. The compositional trends in groups IIIA and IIIB are redefined, and the suggestion by Wasson and Kimberlin that they represent a single fractionation sequence (group IIIAB) is confirmed. A new group, HIE, is similar in its properties to group IIIA but distinguished by lower Ga/Ni and Ge/Ni ratios, larger bandwidths and the formation of haxonite (Fe, Ni) 23 C 6 in each of its members. A sixth member, Hassi-Jekna, has been added to group IIIC, extending its Ge range up to 70 ppm. The characteristics of these groups can be summarized as follows:

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