Computer Science
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995metic..30...15m&link_type=abstract
Meteoritics (ISSN 0026-1114), vol. 30, no. 1, p. 15-19
Computer Science
3
Aluminum, Chondrites, Chromites, Chromium, Inclusions, Noble Metals, Zirconium Oxides, Iridium, Mineralogy, Neutron Activation Analysis, Scanning Electron Microscopy
Scientific paper
Platinum group elements (PGE) enrichments are found in Fe-Ni blebs (less than 1 micron) in Al- and Cr-rich objects in the ordinary chondrites Ste. Marguerite, Forest Vale, Montferre. In Ste. Marguerite, high ZrO2 concentrations (Baddeleyite) are also present in a chromite inclusion. Iridium enrichment in this material compared to its metal content is confirmed by Instrumental Neutron Activation Analysis (INAA). The widespread occurrence of PGE in Al- and Cr-rich objects, mostly present in H-group chondrites of nearly equilibrated types, must be taken into account to understand their conditions of formation.
Blanc Ph.
Michel-Levy Christophe M.
Robin Eric
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