Document Detail

Oxygen isotope variation in stony-iron meteorites.
MedLine Citation:
PMID:  16931721     Owner:  NLM     Status:  MEDLINE    
Asteroidal material, delivered to Earth as meteorites, preserves a record of the earliest stages of planetary formation. High-precision oxygen isotope analyses for the two major groups of stony-iron meteorites (main-group pallasites and mesosiderites) demonstrate that each group is from a distinct asteroidal source. Mesosiderites are isotopically identical to the howardite-eucrite-diogenite clan and, like them, are probably derived from the asteroid 4 Vesta. Main-group pallasites represent intermixed core-mantle material from a single disrupted asteroid and have no known equivalents among the basaltic meteorites. The stony-iron meteorites demonstrate that intense asteroidal deformation accompanied planetary accretion in the early Solar System.
R C Greenwood; I A Franchi; A Jambon; J A Barrat; T H Burbine
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2006-08-24
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  313     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-09-22     Completed Date:  2006-10-03     Revised Date:  2007-03-19    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1763-5     Citation Subset:  IM    
Planetary and Space Sciences Research Institute, Open University, Walton Hall, Milton Keynes, MK7 6AA UK.
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MeSH Terms
Evolution, Planetary*
Minor Planets*
Oxygen Isotopes*
Reg. No./Substance:
0/Oxygen Isotopes
Comment In:
Science. 2006 Sep 22;313(5794):1743-4   [PMID:  16990537 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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