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Nucleosynthetic zirconium isotope anomalies in acid leachates of carbonaceous chondrites

Abstract:

Stepwise dissolutions of the carbonaceous chondrites Orgueil (CI), Murchison (CM) and Allende (CV) reveal large nucleosynthetic anomalies for Zr isotopes that contrast with the uniform compositions found in bulk meteorites. Two complementary nucleosynthetic components are observed: one enriched and one depleted in s-process nuclides. The latter component, characterized by excess 96Zr, is most distinctive in the acetic acid leachate (up to ε96Zr ≈ 50). The excess decreases with increasing acid...

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Publication status:
Published

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Publisher copy:
10.1016/j.gca.2005.04.019

Authors


Schonbachler, M More by this author
Rehkamper, M More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Hattendorf, B More by this author
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Journal:
GEOCHIMICA ET COSMOCHIMICA ACTA
Volume:
69
Issue:
21
Pages:
5113-5122
Publication date:
2005-11-01
DOI:
ISSN:
0016-7037
URN:
uuid:aabeecc8-be6d-4bd4-8c82-cd572210db03
Source identifiers:
82623
Local pid:
pubs:82623
Language:
English

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