| 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 |
| Alternative Title | 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
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| YQ Duan ， ZW Zhang ， XY Yang
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| 2015
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| Source Publication | Acta Petrologica Sinica
(IF:1.148[JCR-2016],1.468[5-Year]) |
| Volume | 31Issue:7Pages:1995-2008 |
| Abstract | 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. |
| Subject Area | 矿床地球化学
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| Indexed By | 其他
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| Language | 中文
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| Document Type | 期刊论文
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| Identifier | http://ir.gyig.ac.cn/handle/352002/6045
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| Collection | 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
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Recommended Citation
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.
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| 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.
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| 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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