【摘 要】
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The Cenozoic geology of West Yunnan is characterized by widespread Jurassic to Cretaceous igneous rocks consisting predominantly of granites and rhyolites and subordinate mafic lithologies.However,the
【机 构】
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State Key Laboratory of Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of G
【出 处】
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2015年中国地球科学联合学术年会
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The Cenozoic geology of West Yunnan is characterized by widespread Jurassic to Cretaceous igneous rocks consisting predominantly of granites and rhyolites and subordinate mafic lithologies.However,the tectonic regime responsible for the inland Eocene granites remains controversial.We report here U–Pb zircon ages,geochemical and Sr–Nd–Hf isotopic data for Tengliang granitoid belt (Guyong Pluton,Lushui pluton,Mangdan Pluton) and West Yingjiang complex Batholith in West Yunnan.Mineralogical and geochemical features suggest that the West Yinjiang and Tengliang granitoid rocks are I- and aluminous S-type granites,respectively.
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