Petrogenesis of the new lherzolitic shergottite Grove Mountains 99027: Constraints of petrography, mineral chemistry, and rare earth elements

	Petrogenesis of the new lherzolitic shergottite Grove Mountains 99027: Constraints of petrography, mineral chemistry, and rare earth elements
	Lin, YT ; Guan, YB ; Wang, DD ; Kimura, M ; Leshin, LA
刊名	METEORITICS & PLANETARY SCIENCE
	2005-11-01
卷号	40 期号:11 页码:1599-1619
ISSN号	1086-9379
文献子类	Article
英文摘要	We report petrography, mineral chemistry, and microdistribution of rare earth elements (REE) in a new Ilerzolitic shergottite, Grove Mountains (GRV) 99027. The textural relationship and REE patterns of minerals suggest precipitation of cumulus olivine and chromite, followed by equilibrium crystallization of a closed system with a bulk composition of the inferred intercumulus melt. Subsolidus equilibrium temperatures of pyroxenes and olivine range from 1100 to 1210 degrees C, based on a two-pyroxene thermometry and Ca partitioning between augite and olivine. Oxygen fugacity of the parent magma is 1.5-2.5 (av. 2.0 +/- 0.4) log units below the quartz-fayalite-magnetite (QFM) buffer at 960-1360 degrees C, according to the olivine-orthopyroxene-chromite barometer. The ilmenite-chromite barometer and thermometer show much wider ranges of oxygen fugacity (1.0-7.0 log unit below QFM) and temperature (1130-480 degrees C), suggesting subsolidus equilibration of the oxides at low temperatures, probably due to deep burial of GRV 99027 on Mars. The low oxygen fugacity and LREE depletion of the parent magma of GRV 99027 suggest low contamination by martian crust.
WOS关键词	ALLAN HILLS 77005 ; MARTIAN METEORITES ; OXIDATION-STATE ; OXYGEN FUGACITY ; UPPER-MANTLE ; LEW88516 ; ALHA77005 ; CRYSTALLIZATION ; ACHONDRITES ; OLIVINE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000234701500004
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/65294]
专题	中国科学院地质与地球物理研究所
通讯作者	Lin, YT
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Tecton Evolut, Beijing 100029, Peoples R China 2.Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 3.Arizona State Univ, Dept Geol Sci, Tempe, AZ 85287 USA 4.Arizona State Univ, Ctr Meteorite Studies, Tempe, AZ 85287 USA 5.Ibaraki Univ, Fac Sci, Inst Astrophys & Planetary Sci, Mito, Ibaraki 3108512, Japan
推荐引用方式 GB/T 7714	Lin, YT,Guan, YB,Wang, DD,et al. Petrogenesis of the new lherzolitic shergottite Grove Mountains 99027: Constraints of petrography, mineral chemistry, and rare earth elements[J]. METEORITICS & PLANETARY SCIENCE,2005,40(11):1599-1619.
APA	Lin, YT,Guan, YB,Wang, DD,Kimura, M,&Leshin, LA.(2005).Petrogenesis of the new lherzolitic shergottite Grove Mountains 99027: Constraints of petrography, mineral chemistry, and rare earth elements.METEORITICS & PLANETARY SCIENCE,40(11),1599-1619.
MLA	Lin, YT,et al."Petrogenesis of the new lherzolitic shergottite Grove Mountains 99027: Constraints of petrography, mineral chemistry, and rare earth elements".METEORITICS & PLANETARY SCIENCE 40.11(2005):1599-1619.