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The water content and parental magma of the second chassignite NWA 2737: Clues from trapped melt inclusions in olivine
He, Qi1; Xiao, Long1; Hsu, Weibiao1,2; Balta, J. Brian3; McSween, Harry Y.3; Liu, Yang3
2013-03-01
Source PublicationMETEORITICS & PLANETARY SCIENCE
ISSN1086-9379
Volume48Issue:3Pages:474-492
Corresponding AuthorHe, Q (reprint author), China Univ Geosci, Planetary Sci Inst, Wuhan 430074, Peoples R China. Email: qihe_cug@yahoo.com
AbstractNWA 2737, the second known chassignite, mainly consists of cumulate olivine crystals of homogeneous composition (Fo=78.7 +/- 0.9). These brown colored olivine grains exhibit two sets of perpendicular planar defects due to shock. Two forms of trapped liquids, interstitial melts and magmatic inclusions, have been examined. Mineral assemblages within the olivine-hosted magmatic inclusions include low-Ca pyroxene, augite, kaersutite, fluorapatite, biotite, chromite, sulfide, and feldspathic glass. The reconstructed parental magma composition (A#) of the NWA 2737 is basaltic and resembles both the experimentally constrained parental melt composition of chassiginites and the Gusev basalt Humphrey, albeit with lower Al contents. A# also broadly resembles the average of shergottite parent magmas or LAR 06319. However, we suggest that the mantle source for the chassignite parental magmas was distinct from that of the shergottite meteorites, particularly in CaO/Al2O3 ratio. In addition, based on the analysis of the volatile contents of kaersutite, we derived a water content of 0.480.67 wt% for the parental melt. Finally, our MELTS calculations suggest that moderate pressure (approximately 6.8kb) came closest to reproducing the crystallized melt-inclusion assemblages.
Subject AreaGeochemistry & Geophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1111/maps.12073
WOS KeywordNAKHLA SNC METEORITE ; MARTIAN METEORITES ; SHERGOTTY METEORITE ; PHYRIC SHERGOTTITES ; MINERAL CHEMISTRY ; HYDROGEN ISOTOPES ; PHASE-EQUILIBRIA ; OXIDATION-STATE ; MARS ; PETROGENESIS
Indexed BySCI
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000316963200011
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9894
Collection天体化学和行星科学实验室
Affiliation1.China Univ Geosci, Planetary Sci Inst, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Lab Astrochem & Planetary Sci, Nanjing 210008, Peoples R China
3.Univ Tennessee, Planetary Geosci Inst, Dept Earth & Planetary Sci, Knoxville, TN 37996 USA
Recommended Citation
GB/T 7714
He, Qi,Xiao, Long,Hsu, Weibiao,et al. The water content and parental magma of the second chassignite NWA 2737: Clues from trapped melt inclusions in olivine[J]. METEORITICS & PLANETARY SCIENCE,2013,48(3):474-492.
APA He, Qi,Xiao, Long,Hsu, Weibiao,Balta, J. Brian,McSween, Harry Y.,&Liu, Yang.(2013).The water content and parental magma of the second chassignite NWA 2737: Clues from trapped melt inclusions in olivine.METEORITICS & PLANETARY SCIENCE,48(3),474-492.
MLA He, Qi,et al."The water content and parental magma of the second chassignite NWA 2737: Clues from trapped melt inclusions in olivine".METEORITICS & PLANETARY SCIENCE 48.3(2013):474-492.
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