Zircon LA-ICP-MS U-Pb age of ignimbrite from Zenong Group in Coqen area of the central Gangdese belt, Tibet, China.

LIU Wei; LI Fen-qi; YUAN Si-hua; ZHUO Jie-wen; ZHANG Wan-ping; LIANG Ting

doi:10.12097/gbc.20100706

Geological Bulletin of China > 2010 > 29(7): 1009-1016. > DOI: 10.12097/gbc.20100706

LIU Wei, LI Fen-qi, YUAN Si-hua, ZHUO Jie-wen, ZHANG Wan-ping, LIANG Ting. 2010: Zircon LA-ICP-MS U-Pb age of ignimbrite from Zenong Group in Coqen area of the central Gangdese belt, Tibet, China.. Geological Bulletin of China, 29(7): 1009-1016. DOI: 10.12097/gbc.20100706

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Zircon LA-ICP-MS U-Pb age of ignimbrite from Zenong Group in Coqen area of the central Gangdese belt, Tibet, China.

Chengdu Center, China Geological Survey ,Chengdu 610081, Sichuan, China;2. Graduate School of Chinese Academy of Geological Sciences, Beijing 100037, China;3. School of the Earth Sciences and Resources ,China University of Geosciences, Beijing 100083, China;4. The State Key Laboratory of Geological Processes and Mineral Resources/China University of Geosciences,Wuhan 430074, Hubei, China

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To ascertain the genesis and regional correlation, the authors measured the LA-ICP-MS zircon U-Pb ages of ignimbrite from Zenong Group widely developed in the Coqen area. LA-ICP-MS zircon U-Pb ages of two ignimbrite samples are respectively 112.7±1.0Ma and 108.6±1.6Ma. According to the chronological data, geochemical data and latest 1∶250000 regional geological survey results obtained, the authors believed the Zenong Group volcanic rocks in the northern central Gangdese were most likely associated with southward subduction of Bangong Co-Nujiang Tethys oceanic crust.
- zircon LA-ICP-MS U-Pb age,
- central Gangdese belt,
- ignimbrite,
- Coqen area

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Zircon LA-ICP-MS U-Pb age of ignimbrite from Zenong Group in Coqen area of the central Gangdese belt, Tibet, China.

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Zircon LA-ICP-MS U-Pb age of ignimbrite from Zenong Group in Coqen area of the central Gangdese belt, Tibet, China.

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