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Creator |
1c5c32b11b5ad1bd9c846a77784abc38 |
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Creator |
b75227dc49245aab76a534b836099ab7 |
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Creator |
84764f824834b90b789fef94138093b1 |
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Creator |
a5c0a605ec7472b7ee96eb656061979e |
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Creator |
ext-7c41b5b9568cafa160d35dc68e2d7c9f |
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Date |
2010 |
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Is Part Of |
repository |
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abstract |
Introduction: Although silicate inclusions are present in only about half the IIE
irons so far identified (total no. about 15), these objects are highly diverse; varying
from chondrule-bearing clasts to elongate ribbons of quenched basaltic melt. Models
to explain the origin of IIE irons invoke either near-surface asteroidal impact processes,
or impact mixing during igneous differentiation. On the basis of their similar oxygen
isotope compositions, a possible relationship between the H chondrites and IIE irons
has been proposed. However, this has recently been called into question because high-precision
laser fluorination analysis of equilibrated H chondrites (n=9) indicates that the
overlap with IIE irons is relatively limited. To improve our understanding of this
important group of meteorites we are currently undertaking a detailed geochemical
investigation of the silicate-bearing IIE irons. |
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authorList |
authors |
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presentedAt |
ext-865b0a15afca066857dfd100b4740932 |
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status |
peerReviewed |
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type |
AcademicArticle |
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type |
Article |
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label |
MdDermott, K. ; Greenwood, R. C. ; Franchi, I. A. ; Anand, M. and Scott, E. R.
D. (2010). Oxygen isotopic constraints on the origin and relationship of IIE iron
meteorites and H chondrites. In: 73rd Annual Meeting of the Meteoritical Society,
26-30 Jul 2010, New York, NY, US. |
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label |
MdDermott, K. ; Greenwood, R. C. ; Franchi, I. A. ; Anand, M. and Scott, E. R. D.
(2010). Oxygen isotopic constraints on the origin and relationship of IIE iron meteorites
and H chondrites. In: 73rd Annual Meeting of the Meteoritical Society, 26-30 Jul
2010, New York, NY, US. |
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Title |
Oxygen isotopic constraints on the origin and relationship of IIE iron meteorites
and H chondrites |
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in dataset |
oro |