Trace elements in rims and interiors of Chainpur chondrules

Laurel L. Wilkening, William V. Boynton, Dolores H. Hill

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Trace elements were measured in the rims and interiors of nine chondrules separated from the Chainpur LL-3 chondrite. Whole rock samples of Chainpur and samples of separated rims were also measured. Chondrule rims are moderately enriched in siderophile and volatile elements relative to the chondrule interiors. The enriched volatile elements include the lithophilic volatile element Zn. The moderate enrichment of volatiles in chondrule rims and the lack of severe depletion in chondrules can account for the complete volatile inventory in Chainpur. These results support a three-component model of chondrite formation in which metal plus sulfide, chondrules plus rims and matrix silicates are mixed to form chondrites.

Original languageEnglish (US)
Pages (from-to)1071-1080
Number of pages10
JournalGeochimica et Cosmochimica Acta
Issue number5
Publication statusPublished - 1984


ASJC Scopus subject areas

  • Geochemistry and Petrology

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