Arid
DOI10.1111/j.1945-5100.2002.tb00859.x
Sayh al Uhaymir 094: A new martian meteorite from the Oman desert
Gnos, E; Hofmann, B; Franchi, IA; Al-Kathiri, A; Hauser, M; Moser, L
通讯作者Gnos, E
来源期刊METEORITICS & PLANETARY SCIENCE
ISSN1086-9379
EISSN1945-5100
出版年2002
卷号37期号:6页码:835-854
英文摘要

Sayh al Uhaymir (SaU) 094 is a 223.3 g, partially crusted, strongly to very strongly shocked melanocratic olivine-porphyric rock of the shergottite group showing a microgabbroic texture. The rock consists of pyroxene (52.0-58.2 vol%)-dominantly prismatic pigeonite (En(60-68)Fs(20-27)Wo(7-9)) associated with minor augite (En(46-49)Fs(15-16)Wo(28-31))-brown (shock-oxidized) olivine (Fo(65-69); 22.1-31%), completely isotropic interstitial plagioclase glass (maskelynite; An(50-64)Or(0.3-0.9); 8.6-13.0%), chromite and titanian magnesian chromite (0.9-1.0%), traces of ilmenite (Ilm(80-86)), pyrrhotite (Fe92-100; 0.1-0.2%), merrillite (<<0.1%), and pockets (4.8-6.7%) consisting of green basaltic to basaltic andesitic shock glass that is partially devitrified into a brown to black product along boundaries with the primary minerals. The average maximum dimensions of minerals are: olivine (1.5 mm), pyroxene (0.3 mm) and maskelynite (0.3 mm). Primary melt inclusions in olivine and chromite are common and account for 0.1-0.6% of the rock. X-ray tomography revealed that the specimen contains similar to0.4 vol% of shock-melt associated vesicles, up to 3 mm in size, which show a preferred orientation. Fluidization of the maskelynite, melting and re crystallization of pyroxene, olivine and pyrrhotite indicate shock stage S6. Minor terrestrial weathering resulted in calcite-veining and minor oxidation of sulfides. The meteorite is interpreted as paired with SaU 005/008/051. The modal composition is similar to Dar al Gani 476/489/670/735/876, with the exception that neither mesostasis nor titanomagnetite nor apatite are present and that all phases show little zonation. The restricted mineral composition, predominance of chromite among the oxides, and abundance of olivine indicate affinities to the lherzolitic shergottites.


类型Article
语种英语
国家Switzerland ; England ; Oman
收录类别SCI-E
WOS记录号WOS:000176420100005
WOS关键词CHEMISTRY ; PETROGRAPHY ; MINERALOGY ; LEW88516 ; OXYGEN ; MARS ; DAR-AL-GANI-489 ; PETROGENESIS ; SHERGOTTITES ; PYRRHOTITE
WOS类目Geochemistry & Geophysics
WOS研究方向Geochemistry & Geophysics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/143382
作者单位(1)Inst Geol Sci, CH-3012 Bern, Switzerland;(2)Nat Hist Museum Bern, CH-3005 Bern, Switzerland;(3)Open Univ, Planetary Sci Res Inst, Milton Keynes MK7 6AA, Bucks, England;(4)Minist Commerce & Ind, Directorate Gen Minerals, Salalah, Oman
推荐引用方式
GB/T 7714
Gnos, E,Hofmann, B,Franchi, IA,et al. Sayh al Uhaymir 094: A new martian meteorite from the Oman desert[J],2002,37(6):835-854.
APA Gnos, E,Hofmann, B,Franchi, IA,Al-Kathiri, A,Hauser, M,&Moser, L.(2002).Sayh al Uhaymir 094: A new martian meteorite from the Oman desert.METEORITICS & PLANETARY SCIENCE,37(6),835-854.
MLA Gnos, E,et al."Sayh al Uhaymir 094: A new martian meteorite from the Oman desert".METEORITICS & PLANETARY SCIENCE 37.6(2002):835-854.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Gnos, E]的文章
[Hofmann, B]的文章
[Franchi, IA]的文章
百度学术
百度学术中相似的文章
[Gnos, E]的文章
[Hofmann, B]的文章
[Franchi, IA]的文章
必应学术
必应学术中相似的文章
[Gnos, E]的文章
[Hofmann, B]的文章
[Franchi, IA]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。