XIA Lin-qi, XIA Zu-chun, LI Xiang-min, MA Zhong-ping, XU Xue-yi. Petrogenesis of the Yaolinghe Group, Yunxi Group, Wudangshan Group Volcanic Rocks and Basic Dyke Swarms from Eastern Part of the South Qinling Mountains[J]. Northwestern Geology, 2008, 41(3): 1-29.
Citation: |
XIA Lin-qi, XIA Zu-chun, LI Xiang-min, MA Zhong-ping, XU Xue-yi. Petrogenesis of the Yaolinghe Group, Yunxi Group, Wudangshan Group Volcanic Rocks and Basic Dyke Swarms from Eastern Part of the South Qinling Mountains[J]. Northwestern Geology, 2008, 41(3): 1-29.
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Petrogenesis of the Yaolinghe Group, Yunxi Group, Wudangshan Group Volcanic Rocks and Basic Dyke Swarms from Eastern Part of the South Qinling Mountains
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Abstract
The mid-late Neoproterozoic(676~833 Ma)Yao linghe Group,Yunxi Group,Wudangshan Group volcanic rocks and basic dyke swarms from eastern part of South Qinling Mountains produced an intracontinental rift setting.On the basis of geochemical data,the mid-late Neoproterozoic rift-related basic lavas and basic dykes from eastern part of South Qinling Mountains generally belong to a low Ti/Y (<500)magma type.Elemental and isotopic data suggest that the chemical variations of the mid-late Neoproterozoic rift-related basic lavas and basic dykes from eastern part of South Qinling Mountains can not be explained by cry stallization from a common parental magma.
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