Discovery of Late Permian Jianshanzi volcanic rocks in Qinghe valley of northern Liaoning and its geologic significance |
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Authors: | Yuejun CHEN Chunlin SUN Yuewu SUN Research Center of Palaeontology & Stratigraphy Jilin University Changchun China |
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Institution: | Yuejun CHEN,Chunlin SUN , Yuewu SUN Research Center of Palaeontology & Stratigraphy,Jilin University,Changchun 130026,China |
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Abstract: | Jianshanzi volcanic rocks at Qinghe valley in the northern Liaoning were considered belonging to Early Proterozoic Gaojiayu Formation of Liaohe Group, or to Early Cambrian Beidagou Formation of Qinghezhen Group, or Middle-Late Proterozoic Shenjiapu Formation-Complex of Kaiyuan Group-complex. Dating the zircons from the dacite with schistosity is 2 506 Ma in method of U-Pb (SHRIMP). This evidence indicates the rocks may be referred to Late Permian in age. Discovery of the rocks is significant to re-recognize... |
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Keywords: | Jianshanzi volcanic rocks Liaohe Group Qinghe valley northern Liaoning |
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