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
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