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Sources of granites: some crucial questions on granite study (4)

文献类型：期刊论文

作者Zhang Qi1; Wang Yan2; Pan GuoQiang2; Li CenDong4; Jin WeiJun1
刊名ACTA PETROLOGICA SINICA
出版日期2008-06-01
卷号24期号:6页码:1193-1204
关键词granite source rocks North China South China lower crust classification
ISSN号1000-0569
文献子类Article
英文摘要The geochemical characteristics and classification of granitic rocks is dependent oil the composition of source magmas of granitic rocks. It is illustrated in this paper that it is uncorrect to classify the granitic rocks into mantel-derived, crustal-derived and mixed mantle-crustal derived, because granitic rocks are impossible derived directly from the mantle. Therefore, it is meaningless to calculate the proportion of mantle and crustal component according to a mantle-crust mixing model. The composition of source magmas are the most important factor to control the geochemical character of resulted grantic rocks, degrees of partial melting, pressure, temperatures and fluids are all supplementary, whereas magma mixing and fractional crystallization are two less important factors to the formation of granitic rocks. We propose to classify the source rocks of the granitic rocks into three sources: B source (basalt-derived), C source (continent-derived) and BC source. B source means the source rocks are oceanic crustal rocks derived from highly depleted mantle, C source means they are continental crustal rocks, and BC source means they are between B and C sources, which may have derived from subcontinental enriched mantle and may include intermediate-mafic igneous rocks by partial melting of the metasomatized mantle, or mafic rocks contaminated with continental crust. It is also summarized the diversity of the source rocks of the granitic rocks in China, and indicated that the distribution of grantic rocks in China may be controlled by the compositon of the source rocks.
WOS关键词LOWER CONTINENTAL-CRUST ; S-TYPE GRANITES ; EASTERN CHINA ; TRACE-ELEMENT ; NORTH CHINA ; FRACTIONAL CRYSTALLIZATION ; ISOTOPIC COMPOSITIONS ; ANHUI PROVINCE ; VOLCANIC-ROCKS ; IGNEOUS ROCKS
WOS研究方向Geology
语种英语
WOS记录号WOS:000259628800004
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/69912]  
专题中国科学院地质与地球物理研究所
通讯作者Zhang Qi
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
3.Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China
4.Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China
推荐引用方式
GB/T 7714		 Zhang Qi,Wang Yan,Pan GuoQiang,et al. Sources of granites: some crucial questions on granite study (4)[J]. ACTA PETROLOGICA SINICA,2008,24(6):1193-1204.
APA Zhang Qi,Wang Yan,Pan GuoQiang,Li CenDong,&Jin WeiJun.(2008).Sources of granites: some crucial questions on granite study (4).ACTA PETROLOGICA SINICA,24(6),1193-1204.
MLA Zhang Qi,et al."Sources of granites: some crucial questions on granite study (4)".ACTA PETROLOGICA SINICA 24.6(2008):1193-1204.

入库方式： OAI收割

来源：地质与地球物理研究所

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