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Rare earth element geochemistry and petrogenesis of Miles (IIE) silicate inclusions
Hsu, WB
2003-12-01
Source PublicationGEOCHIMICA ET COSMOCHIMICA ACTA
ISSN0016-7037
Volume67Issue:24Pages:4807-4821
AbstractAn ion probe study of rare earth element (REE) geochemistry of silicate inclusions in the Miles HE iron meteorite was carried out. Individual mineral phases among inclusions have distinct REE patterns and abundances. Most silicate grains have homogeneous REE abundances but show considerable intergrain variations between inclusions. A few pyroxene grains display normal igneous REE zoning. Phosphates (whitlockite and apatite) are highly enriched in REEs (50 to 2000 X CI) with a relatively light rare earth element (LREE)-enriched REE pattern. They usually occurred near the interfaces between inclusions and Fe host. In Miles, albitic glasses exhibit two distinctive REE patterns: a highly fractionated LREE-enriched (CI normalized La/Sm similar to 15) pattern with a large positive Eu anomaly and a relatively heavy rare earth element (HREE)-enriched pattern (CI-normalized Lu/Gd similar to4) with a positive Eu anomaly and a negative Yb anomaly. The glass is generally depleted in REEs relative to CI chondrites.
KeywordIron Meteorite Kodaikanal Meteorite Pallasite Meteorites Mineral Chemistry Weekeroo-station Petrology Colomera Origin Bodies
Subject AreaGeochemistry & Geophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/S0016-7037(03)00207-2
WOS KeywordIRON METEORITE ; KODAIKANAL METEORITE ; PALLASITE METEORITES ; MINERAL CHEMISTRY ; WEEKEROO-STATION ; PETROLOGY ; COLOMERA ; ORIGIN ; BODIES
Indexed BySCI
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000187323600011
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/4624
Collection天体化学和行星科学实验室
Affiliation1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
2.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
Recommended Citation
GB/T 7714
Hsu, WB. Rare earth element geochemistry and petrogenesis of Miles (IIE) silicate inclusions[J]. GEOCHIMICA ET COSMOCHIMICA ACTA,2003,67(24):4807-4821.
APA Hsu, WB.(2003).Rare earth element geochemistry and petrogenesis of Miles (IIE) silicate inclusions.GEOCHIMICA ET COSMOCHIMICA ACTA,67(24),4807-4821.
MLA Hsu, WB."Rare earth element geochemistry and petrogenesis of Miles (IIE) silicate inclusions".GEOCHIMICA ET COSMOCHIMICA ACTA 67.24(2003):4807-4821.
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