中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Micro-sample Rb-Sr analysis using the microsampling technique and its applications on geochronology and petrogenesis

文献类型:期刊论文

作者Zhu XiYan1; Chen FuKun2; Yang YiZeng2; Hu Rong2
刊名ACTA PETROLOGICA SINICA
出版日期2010
卷号26期号:1页码:325-332
关键词Micro-sampling Rb-sr Isotope K-feldspar Granite Qinling Orogenic Belt
ISSN号1000-0569
文献子类Article
英文摘要This study presents analytical data of Rb-Sr isotopic composition of K-feldspar megacrysts from the Mesozoic Heyu granite pluton exposed in the eastern Qinling orogenic belt, by using the micro-drilling technique and the micro-sample Rb-Sr isotopic analytical method. Analytical results show significant variations in Rb/Sr ratio and Sr isotopic composition within a single K-feldspar Crystal. Rb-Sr isochron ages of about 132 Ala to 133 Ma can be obtained from both megacryst and matrix K-feldspars. No significant variations of (87)Sr/(86)Sr initial ratio can be detected in the centre and marginal parts of K-feldspar crystals, Suggesting homogeneous Sr isotopic composition during the crystallization of the magma and implying primary origin for the K-feldspar megacrysts of the Heyu granite. Owing the feature of high spatial resolution, a combination of the micro-drilling technique and the micro-sample Rb-Sr isotopic analytical method increases the applications in studies on isotopic geochronology and petrogenesis of metamorphic and plutonic rocks as well as volcanic rocks.
WOS关键词K-FELDSPAR MEGACRYSTS ; ISOTOPIC COMPOSITION ; DETRITAL MUSCOVITE ; GOLD DEPOSIT ; ROCKS ; PHENOCRYSTS ; GRANITES ; CHINA ; CRYSTALLIZATION ; SYSTEMATICS
WOS研究方向Geology
语种英语
WOS记录号WOS:000274509500035
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/73200]  
专题中国科学院地质与地球物理研究所
通讯作者Zhu XiYan
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Univ Sci & Technol China, Sch Earth Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714
Zhu XiYan,Chen FuKun,Yang YiZeng,et al. Micro-sample Rb-Sr analysis using the microsampling technique and its applications on geochronology and petrogenesis[J]. ACTA PETROLOGICA SINICA,2010,26(1):325-332.
APA Zhu XiYan,Chen FuKun,Yang YiZeng,&Hu Rong.(2010).Micro-sample Rb-Sr analysis using the microsampling technique and its applications on geochronology and petrogenesis.ACTA PETROLOGICA SINICA,26(1),325-332.
MLA Zhu XiYan,et al."Micro-sample Rb-Sr analysis using the microsampling technique and its applications on geochronology and petrogenesis".ACTA PETROLOGICA SINICA 26.1(2010):325-332.

入库方式: OAI收割

来源:地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

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。