A compositional classification scheme for meteoritic chondrules

Details A compositional classification scheme for meteoritic chondrules A compositional classification scheme for meteoritic chondrules

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.357..207s&link_type=abstract

Nature (ISSN 0028-0836), vol. 357, no. 6375, May 21, 1992, p. 207-210.

Computer Science

31

Chondrule, Meteoritic Composition, Solar System Evolution, Abundance, Cathodoluminescence, Classifying, Interplanetary Medium

Scientific paper

A compositionally based classification scheme for chondrules is proposed that will help in systematizing the wealth of data available and disentangling the effects of nebular and subsequent processes. The classification is not by texture or the composition of a single phase, or a mixture of these two, but rather is a comprehensive, systematic approach which uses the composition of the two main chondrule components. This scheme is applicable to over 95 percent of the chondrules and is easily applied using an electron microprobe. It stresses the original diversity of the chondrules and the complex yet facile way in which they respond to parent-body metamorphism. Results using this classification scheme suggest that arguments against an important role of chondrules in determining the compositional trends of the chondrites have been premature.

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