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Hf-182-W-182 chronometry and early differentiation of the ureilite parent body

Abstract:

Eight samples spanning the bulk chemical range of monomict ureilites, have been analyzed for their W isotopic composition and Hf/W in order to elucidate the differentiation history of the ureilite parent body. The ureilites studied here show sub-chondritic Hf and W concentrations and low Hf/W ratio, and all show clear 182W deficits relative to bulk chondrites. The W isotope data provide evidence that the ureilite parent body differentiated within 1 to 2 million years after the start of the so...

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Publication status:
Published

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Publisher copy:
10.1016/j.epsl.2009.10.025

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Singletary, SJ More by this author
Journal:
EARTH AND PLANETARY SCIENCE LETTERS
Volume:
288
Issue:
3-4
Pages:
611-618
Publication date:
2009-11-15
DOI:
ISSN:
0012-821X
URN:
uuid:552674c1-7bcf-4ca4-9b69-9f23efe73305
Source identifiers:
83033
Local pid:
pubs:83033

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