The continental dynamics of Zhangshiying pluton at the southern margin of the North China Craton: Evidence from geochemical, zircon U-Pb geochronology and Hf isotopic compositions

	The continental dynamics of Zhangshiying pluton at the southern margin of the North China Craton: Evidence from geochemical, zircon U-Pb geochronology and Hf isotopic compositions
其他题名	华北克拉通南缘张士英岩体大陆动力学背景:来自地球化学、锆石U-Pb年龄和Hf同位素的证据
	YQ Duan ， ZW Zhang ， XY Yang
	2015
发表期刊	Acta Petrologica Sinica
卷号	31 期号:7 页码:1995-2008
摘要	The Zhangshiying pluton is located in the southern margin of the North China Craton. Zircon LA-ICP-MS U-Pb dating for Zhangshiying quartz syenite pluton yield 122. 8 +/- 1. 5Ma. Those quartz syenite are alkaline rocks with SiO2 = 66. 04% similar to 67. 80%, Na2O + K2O = 9. 03% similar to 10. 97%, K2O = 4. 40% similar to 6. 37%, K-2 O/Na-2 O > 1, A/CNK =1. 26 similar to 1. 58, and A/NK = 1. 63 similar to 1. 79. Mg-# ranges from 12. 9 to 39. 4. They are enriched in LREE and depleted in HREE. There is obvious partition of LREE from HREE with (La/Yb)(N) =15. 48 similar to 21. 12, and with slightly negative Eu-abnormal (delta Eu = 0. 54 similar to 0. 99), and it is enriched in LILE e. g. Rb, K, Th, U, and depleted in HFSE, e. g. Nb, Ta, P and Ti. The epsilon(Hf)(t) for quartz syenite ranges from -17. 6 to -13. 9, with t(DM2) of 1.7 similar to 1. 9Ga. Its magma zirconium saturation temperature ranges between 940 similar to 1000 degrees C. Geochemical and isotopic composition indicate that the source of the Zhangshiying pluton is mainly old lower crust and minor juvenile composition. The juvenile composition is mainly from mantle. The pluton was generated under an extensional setting. The extensional setting induced mantle magma upwelling, providing heat and causing the partial melting of the bottom crust. The age of pluton is at the same time of the lithospheric thinning and destruction of the North China craton. Zhang Shiying pluton is the response of this geological event.
学科领域	矿床地球化学
收录类别	其他
语种	中文
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/6045
专题	矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	YQ Duan ， ZW Zhang ， XY Yang. The continental dynamics of Zhangshiying pluton at the southern margin of the North China Craton: Evidence from geochemical, zircon U-Pb geochronology and Hf isotopic compositions[J]. Acta Petrologica Sinica,2015,31(7):1995-2008.
APA	YQ Duan ， ZW Zhang ， XY Yang.(2015).The continental dynamics of Zhangshiying pluton at the southern margin of the North China Craton: Evidence from geochemical, zircon U-Pb geochronology and Hf isotopic compositions.Acta Petrologica Sinica,31(7),1995-2008.
MLA	YQ Duan ， ZW Zhang ， XY Yang."The continental dynamics of Zhangshiying pluton at the southern margin of the North China Craton: Evidence from geochemical, zircon U-Pb geochronology and Hf isotopic compositions".Acta Petrologica Sinica 31.7(2015):1995-2008.

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