Petrology and tectonic significance of the early Mesozoic granulite xenoliths from the eastern Inner Mongolia, China
文献类型：期刊论文
| 作者 | Shao JiAn1,2,3; Wei ChunJing1,2 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 54期号:10页码:1484-1491 |
| 关键词 | early Mesozoic granulite xenolith lower crust North China Craton |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-011-4255-5 |
| 文献子类 | Article |
| 英文摘要 | Granulite xenoliths are found in the early Mesozoic diorite intrusions from Chifeng and Ningcheng areas, eastern Inner Mongolia. The granulites are granoblastic and weakly gneissic with mineral assemblage of hypersthene, diopside, plagioclase and minor biotite, amphibole and ilmenite. Some samples contain the intergrowth composed of labradorite and vermicular hypersthene, and some coarse-grained plagioclases of andesine and labradorite composition occasionally develop bytownite rims with vermicular hypersthene, indicating a possible presence of garnet. Presence of blastogabbroic texture and hypersthene with diopside exsolution lamellae in some samples suggests that the protolith of the granulite is norite or gabbro. On the basis of metamorphic research and thermobaric calculation, the evolution of the granulite xenoliths is summarized into the following stages: (1) Isobaric cooling of underplated noritic or gabbroic magma in the lower crust led to the formation of probable garnet-bearing medium-high pressure granulite. (2) These higher pressure granulites were adiabatically uplifted to upper crust by dioritic magma and transformed to low pressure two-pyroxene granulite during an isothermal decompression. (3) The two-pyroxene granulite underwent retrograde metamorphism of different degrees during an isobaric cooling process as a result of crystallization and cooling of the dioritic magma. The pyroxenite-dominated cumulates and the medium-high pressure granulites may have rejuvenated the lower crust during the early Mesozoic. |
| WOS关键词 | HIGH-PRESSURE ; ECLOGITE ; COMPLEX ; GABBRO ; WATER |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000295586800004 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; National Natural Science Foundation of China(90714008 ; National Natural Science Foundation of China(90714008 ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; 40972039 ; 40972039 ; 40821002) ; 40821002) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; National Natural Science Foundation of China(90714008 ; National Natural Science Foundation of China(90714008 ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; 40972039 ; 40972039 ; 40821002) ; 40821002) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; National Natural Science Foundation of China(90714008 ; National Natural Science Foundation of China(90714008 ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; 40972039 ; 40972039 ; 40821002) ; 40821002) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; Ministry of Land and Resources "Deep Probing Technology and Experimental Research"(SinoProbe-04-02) ; National Natural Science Foundation of China(90714008 ; National Natural Science Foundation of China(90714008 ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; Key Laboratory of Mineral Resources of Chinese Academy of Sciences ; 40972039 ; 40972039 ; 40821002) ; 40821002) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/74343]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Shao JiAn |
| 作者单位 | 1.Peking Univ, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China 2.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Key Lab Mineral Resources, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao JiAn,Wei ChunJing. Petrology and tectonic significance of the early Mesozoic granulite xenoliths from the eastern Inner Mongolia, China[J]. SCIENCE CHINA-EARTH SCIENCES,2011,54(10):1484-1491. |
| APA | Shao JiAn,&Wei ChunJing.(2011).Petrology and tectonic significance of the early Mesozoic granulite xenoliths from the eastern Inner Mongolia, China.SCIENCE CHINA-EARTH SCIENCES,54(10),1484-1491. |
| MLA | Shao JiAn,et al."Petrology and tectonic significance of the early Mesozoic granulite xenoliths from the eastern Inner Mongolia, China".SCIENCE CHINA-EARTH SCIENCES 54.10(2011):1484-1491. |
入库方式： OAI收割
来源：地质与地球物理研究所
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