On the classification of granitic rocks based on whole-rock Sr and Yb concentrations III: Practice

	On the classification of granitic rocks based on whole-rock Sr and Yb concentrations III: Practice
	Zhang Qi 1; Jin WeiJun1 ; Li ChengDong 2; Wang YuanLong 1
刊名	ACTA PETROLOGICA SINICA
	2010-12-01
卷号	26 期号:12 页码:3431-3455
关键词	ClassificatiOn Of Granitic Rocks Based On Sr And Yb cOncentratiOns Practice Crust Thickness Co-au Mineralization W-sn Mineralization
ISSN号	1000-0569
文献子类	Article
英文摘要	In this study, we test the reliability of new classification of granitic rocks based on Sr and Yb concentrations of granitic rocks that we suggested in our previous study (Zhang et al., 2010a). A large data set of granitic rocks worldwide including those from Qaidam, the North Qilian, the Inner Mongolia, Songpan-Canze, the Dabei Mountains, the Taihang Mountains, and Paleoproterozoic granitic rocks in the North China and Neoproterozoic granitic rocks in South China Blcok, and those from Turkey, Russia, Brazil, Congo, Bohemia and Italy are used to examine the relationship of the Sr and Yb concentrations of granitic rocks and their formation pressure and depth. The data indicate that the variation of granitic rocks in Sr and Yb concentrations is closely related to the pressure when they formed, which can be used to estimate the variation of the thickness of the crust. Such as the Paleoproterozoic granites in the North China by this method to study, not found in central North China Craton occurred collision in the Paleoproterozoic. Therefore, the North China Craton was divided into two blocks need to be further re-understanding. Another example is the the Neoproterozoic granite in South China Block. Our study shows that crust of the South China Block is thin during the Neoproterozoic, and however, it seems irrelevant with rifting-reakup of the supercontinent Rodinia. The data also indicate that the different mineralization associated with granitic rocks is also related to pressure. Cu-Au mineralization is commonly hosted in adakitic-type and Himalaya-type granitic rocks which likely formed from thickened lower crust, whereas W-Sn mineralization is usually hosted in Nanling-type granitic rocks which formed from shallower crust. However, such classification based on Sr and Yb concentrations of granitic rocks needs more test in both practice and theory before it can be accepted by confidence.
WOS关键词	NORTH CHINA CRATON ; CU-AU MINERALIZATION ; NORTHWESTERN JIAODONG PENINSULA ; ADAKITIC INTRUSIVE ROCKS ; PB ZIRCON GEOCHRONOLOGY ; ORE-FORMING PROCESSES ; PORPHYRY COPPER BELT ; GOLD DEPOSITS ; SOUTH CHINA ; TECTONIC EVOLUTION
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000286452000001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73124]
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.Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China
推荐引用方式 GB/T 7714	Zhang Qi,Jin WeiJun,Li ChengDong,et al. On the classification of granitic rocks based on whole-rock Sr and Yb concentrations III: Practice[J]. ACTA PETROLOGICA SINICA,2010,26(12):3431-3455.
APA	Zhang Qi,Jin WeiJun,Li ChengDong,&Wang YuanLong.(2010).On the classification of granitic rocks based on whole-rock Sr and Yb concentrations III: Practice.ACTA PETROLOGICA SINICA,26(12),3431-3455.
MLA	Zhang Qi,et al."On the classification of granitic rocks based on whole-rock Sr and Yb concentrations III: Practice".ACTA PETROLOGICA SINICA 26.12(2010):3431-3455.