SHRIMP U-Pb zircon ages and major element, trace element and Nd-Sr isotope geochemical studies of a Neoproterozoic granitic complex in western Sichuan Petrogenesis and tectonic significance

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	SHRIMP U-Pb zircon ages and major element, trace element and Nd-Sr isotope geochemical studies of a Neoproterozoic granitic complex in western Sichuan Petrogenesis and tectonic significance
	Guo, CL (Guo ChunLi); Wang, DH (Wang DengHong); Chen, YC (Chen YuChuan); Zhao, ZG (Zhao ZhiGang); Wang, YB (Wang YanBin); Fu, XF (Fu XiaoFang); Fu, DM (Fu DeMing)
刊名	ACTA PETROLOGICA SINICA
	2007
卷号	23 期号:10 页码:2457-2470
关键词	neoproterozoic granitic complex basaltic dike and enclave SHRIMP U-Pb zircon dating Sr-Nd isotopes south China
ISSN号	1000-0569
英文摘要	Neoproterozoic magmatism was very intense at the western margin of the Yangtze block. The origin of the magmas has great significance for the study of the evolution of the supercontinent Rodinia. At present, there are two divergent views as to the interpretation of the origin and tectonic setting of the magmas the mantle plume origin and island arc origin. The authors performed SHRIMP U-Pb zircon dating and major element and trace element and Sr-Nd isotope studies of the Mosuoying granitic complex and its surrounding small granitic intrusions as well as basic dikes in these intrusions exposed in the Xichang area, Sichuan, in the Sichuan-Xikang-Yunnan rift. These studies indicate that (I) these acid and basic rock bodies all formed at 842 similar to 790 Ma and are in the main contemporaneous intrusions; (2) intermediate enclaves are pervasive in the granite batholith is the manifestation of magma mingling; and (3) granite was derived from the older lower crust, while basic rocks were derived from the depleted asthenospheric mantle. This study supports the view that South China was located in the supercontinent Rodinia between the continents Australia and Laurentia in the Neoproterozoic.
学科主题	火成岩岩石学
WOS关键词	SOUTH CHINA ; MANTLE PLUME ; RODINIA ; RIFT ; GEOCHRONOLOGY ; MAGMATISM ; BENEATH ; MARGIN ; CRATON
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000254139000014
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38403]
专题	中国地质调查局
作者单位	Sanzhou Min Co Ltd, Chengdu 610017, Peoples R China
推荐引用方式 GB/T 7714	Guo, CL ,Wang, DH ,Chen, YC ,et al. SHRIMP U-Pb zircon ages and major element, trace element and Nd-Sr isotope geochemical studies of a Neoproterozoic granitic complex in western Sichuan Petrogenesis and tectonic significance[J]. ACTA PETROLOGICA SINICA,2007,23(10):2457-2470.
APA	Guo, CL .,Wang, DH .,Chen, YC .,Zhao, ZG .,Wang, YB .,...&Fu, DM .(2007).SHRIMP U-Pb zircon ages and major element, trace element and Nd-Sr isotope geochemical studies of a Neoproterozoic granitic complex in western Sichuan Petrogenesis and tectonic significance.ACTA PETROLOGICA SINICA,23(10),2457-2470.
MLA	Guo, CL ,et al."SHRIMP U-Pb zircon ages and major element, trace element and Nd-Sr isotope geochemical studies of a Neoproterozoic granitic complex in western Sichuan Petrogenesis and tectonic significance".ACTA PETROLOGICA SINICA 23.10(2007):2457-2470.