| Zircon (U-Th)/He thermochronological constraints on Cretaceous thermal extension of Dabieshan orogen |
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| 引用本文： | ZHOU Zuyi,Peter W. REINERS,XU Changhai,LIAO Zongting,YANG Fengli. Zircon (U-Th)/He thermochronological constraints on Cretaceous thermal extension of Dabieshan orogen[J]. 自然科学进展(英文版), 2002, 12(7): 524-527 |
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| 作者姓名： | ZHOU Zuyi Peter W. REINERS XU Changhai LIAO Zongting YANG Fengli |
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| 作者单位： | MOE Laboratory of Marine Geology, Tongji University, Shanghai 200092, C,Department of Geology and Geophysics , Yale University, New Haven, CT 06520-8109, USA,MOE Laboratory of Marine Geology, Tongji University, Shanghai 200092, China,MOE Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
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| 基金项目： | Supported by the National Key Basic Research Special Foundation Project (Grant No. G2000078501) and the Foundation for University Key Teachers of the Ministry of Education of China. |
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| 摘 要： | ：(U-Th)/He ages of 13 samples from Yuexi-Luotian core and its flanks in Dabieshan orogen fall in the range of 155～85 Ma. He ages for samples from the core range between 85～107 Ma, while those from the flanks range between 114～155 Ma. The result shows that the Yuexi-Luotian core was a thermal dome in Cretaceous with core temperature being much higher than those of the flanks. The thermal extension which resulted in the formation of Dabie core complex lasted until ca. 85 Ma. The magnitude of exhumation in the core is approximately 1528.8 m more than that in the flanks.
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| 关 键 词： | Supported by the National Key Basic Research Special Foundation Project (Grant No. G2000078501) and |
Zircon (U-Th)/He thermochronological constraints on Cretaceous thermal extension of Dabieshan orogen |
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| ZHOU Zuyi,Peter W.REINERS,Xu Changhai,Liao Zongting,YANG Fengli. Zircon (U-Th)/He thermochronological constraints on Cretaceous thermal extension of Dabieshan orogen[J]. Progress in Natural Science, 2002, 12(7): 524-527 |
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| Authors: | ZHOU Zuyi Peter W.REINERS Xu Changhai Liao Zongting YANG Fengli |
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| Affiliation: | 1. MOE Laboratory of Marine Geology, Tongji University, Shanghai 200092, China
2. Department of Geology and Geophysics , Yale University, New Haven, CT 06520-8109, USA |
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| Abstract: | (U-Th)/He ages of 13 samples from Yuexi-Luotian core and its flanks in Dabieshan orogen fall in the range of 155～85 Ma. He ages for samples from the core range between 85～107 Ma, while those from the flanks range between 114～155 Ma. The result shows that the Yuexi-Luotian core was a thermal dome in Cretaceous with core temperature being much higher than those of the flanks. The thermal extension which resulted in the formation of Dabie core complex lasted until ca. 85 Ma. The magnitude of exhumation in the core is approximately 1528.8 m more than that in the flanks. |
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| Keywords: | Supported by the National Key Basic Research Special Foundation Project (Grant No. G2000078501) and |
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