Si- and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution
文献类型：期刊论文
| 作者 | Fan, QC; Sui, JL; Xu, P; Li, N; Sun, Q; Wang, TH |
| 刊名 | SCIENCE IN CHINA SERIES D-EARTH SCIENCES
 |
| 出版日期 | 2006 |
| 卷号 | 49期号:1页码:43-49 |
| 关键词 | Si- and alkali-rich melt inclusion mantle peridotite lithospheric evolution eastern China |
| ISSN号 | 1006-9313 |
| DOI | 10.1007/s11430-005-0117-3 |
| 文献子类 | Article |
| 英文摘要 | Minerals of spinel- and garnet-facies mantle xenoliths entrained in Cenozoic basalts from eastern China (North China, Northeastern China and Southeastern China coastal area) contains lots of melt inclusions. Studies on these melt inclusions show that the glass inclusions are rich in SiO2 (60% - 68%) and alkalis (K2O+Na2O = 5% - 11 %, especially for K2O) as well as volatiles such as H2O and CO2 (2% - 7%), which belong to dacites and andesites of the high-K calcic alkali series rocks with few shoshonites. High Al and Ca diopside in melt inclusion is the product of melt crystallization at high temperature and pressure, rather than the product of devitrification. Results show that these K-rich (in general K2O > 3%) intermediate-acidic silicate melt inclusions have characteristics of continent without a genetical link to host basalts and their phenocrystic minerals. Thus, these trapped melt inclusions represent melts of Mesozoic lithospheric mantle-crust interaction and imply that the continental lithospheric mantle beneath eastern China had undergone fragmentation and recreation processes during the Mesozoic and Cenozoic periods. This result undoubtly provides important implication for the evolution of sub-continental lithosphere beneath eastern China. We propose that these Si- and alkalis-rich melts should be responsible for the mantle chemical heterogeneity underneath eastern China. |
| WOS关键词 | ULTRAMAFIC XENOLITHS ; SILICA-RICH ; WEST-EIFEL ; METASOMATISM ; REPLACEMENT ; GERMANY ; BASALTS ; BENEATH ; CRATON ; GEES |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000235671100006 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66526]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fan, QC |
| 作者单位 | 1.China Seismol Bur, Inst Geol, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, QC,Sui, JL,Xu, P,et al. Si- and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49(1):43-49. |
| APA | Fan, QC,Sui, JL,Xu, P,Li, N,Sun, Q,&Wang, TH.(2006).Si- and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49(1),43-49. |
| MLA | Fan, QC,et al."Si- and alkali-rich melt inclusions in minerals of mantle peridotites from eastern China: Implication for lithospheric evolution".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49.1(2006):43-49. |
入库方式： OAI收割
来源：地质与地球物理研究所
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