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The lherzolitic shergottite Grove Mountains 99027: Rare earth element geochemistry
Hsu, WB; Guan, YB; Wang, HN; Leshin, LA; Wang, RC; Zhang, WL; Chen, XM; Zhang, FS; Lin, CY
2004-05-01
发表期刊METEORITICS & PLANETARY SCIENCE
卷号39期号:5页码:701-709
摘要We report here on an ion probe study of rare earth element (REE) geochemistry in the Iherzolitic shergottite Grove Mountains (GRV) 99027. This meteorite shows almost identical mineralogy, petrology, and REE geochemistry to those of the Iherzolitic shergottites Allan Hills (ALH) A77005, Lewis Cliff (LEW) 88516, and Yamato (Y-) 793605. REE concentrations in olivine, pyroxenes, maskelynite, merrillite, and melt glass are basically comparable to previous data obtained from ALH A77005, LEW 88516, and Y-793605. Olivine is the dominant phase in this meteorite. It is commonly enclosed by large (up to several mm) pigeonite oikocrysts. Non-poikilitic areas consist of larger olivine grains (similar tomm), pigeonite, augite, and maskelynite. Minor merrillite (up to 150 mum in size) is widespread in non-poikilitic regions, occurring interstitially between olivine and pyroxene grains. It is the main REE carrier in GRV 99027 and has relatively higher REEs (200-1000 x CI) than that of other lherzolitic shergottites. A REE budget calculation for GRV 99027 yields a whole rock REE pattern very similar to that of other lherzolites. It is characterized by the distinctive light REE depletion and a smooth increase from light REEs to heavy REEs. REE microdistributions in GRV 99027 strongly support the idea that all lherzolitic shergottites formed by identical igneous processes, probably from the same magma chamber on Mars.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]ND ISOTOPIC SYSTEMATICS ; MARTIAN METEORITES ; LEW88516 ; PETROGENESIS ; PETROGRAPHY ; CHEMISTRY ; MINERALS ; MARS ; SR
收录类别SCI
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000221584200005
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文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/15839
专题天体化学和行星科学实验室
作者单位1.Chinese Acad Sci, Lab Astrochem & Planetary Sci, Purple Mtn Observ, Nanjing 210008, Peoples R China
2.Arizona State Univ, Dept Geol Sci, Tempe, AZ 85287 USA
3.Nanjing Univ, Dept Earth Sci, Key State Lab Res Min Deposits, Nanjing 210093, Peoples R China
4.Arizona State Univ, Ctr Meteorite Studies, Tempe, AZ 85287 USA
5.Nanjing Univ, Ctr Mat Anal, Nanjing 210093, Peoples R China
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Hsu, WB,Guan, YB,Wang, HN,et al. The lherzolitic shergottite Grove Mountains 99027: Rare earth element geochemistry[J]. METEORITICS & PLANETARY SCIENCE,2004,39(5):701-709.
APA Hsu, WB.,Guan, YB.,Wang, HN.,Leshin, LA.,Wang, RC.,...&Lin, CY.(2004).The lherzolitic shergottite Grove Mountains 99027: Rare earth element geochemistry.METEORITICS & PLANETARY SCIENCE,39(5),701-709.
MLA Hsu, WB,et al."The lherzolitic shergottite Grove Mountains 99027: Rare earth element geochemistry".METEORITICS & PLANETARY SCIENCE 39.5(2004):701-709.
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