| Geochemistry,zircon U–Pb geochronology,and Hf isotopes of S-type granite in the Baoshan block,constraints on the age and evolution of the Proto-Tethys |
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| 作者姓名： | Jianjun Zhang Chuanlong Mou Chendong Liu Yong Zhang Ting Chen Hualiang Li |
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| 作者单位： | 1. Institute of Geological Survey, East China University of Technology;2. School of Earth Sciences, East China University of Technology;3. Chengdu Geological Survey Center;4. School of Water Resources & Environmental Engineering,East China University of Technology |
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| 基金项目： | funded by the National Natural Science Foundation of China (2019M653840XB)；;the National Natural Science Foundation of China (41972043 and 42062006)； |
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| 摘 要： | Geochemistry, zircon U–Pb geochronology, and Hf isotope data for the Early Paleozoic granites in the Baoshan Block reveal the Early Paleozoic tectonic evolution of the Proto-Tethys. The samples are high-K, calcalkaline, strongly peraluminous rocks with A/CNK values of 1.37–1.46, are enriched in SiO2, K2O, and Rb, and are depleted in Nb, P, Ti, Eu, and heavy rare earth elements,which indicates the crystallization fractionation of the granitic magma. Zircon U–Pb dating indica...
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