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Palaeogeothermal response and record of the effusing of Emeishan basalts in the Sichuan basin |
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| Authors: | Zhu ChuanQing Xu Ming Yuan YuSong Zhao YongQing Shan JingNan He ZhiGuo Tian YunTao Hu ShengBiao |
| Affiliation: | 1 Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 2 The Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3 Exploration and Production Research Institute, SINOPEC, Beijing 100083, China; 4 Exploration Department of South Company of Prospecting, SINOPEC, Chengdu 610041, China; |5 Exploration and Development Research Institute of SINOPEC Southwest Branch, Chengdu 610081, China |
| Abstract: | Thermal history of the Sichuan basin is reconstructed based on vitrinite reflectance from boreholes in the basin using a paleo-heat flow method.The results show that the Sichuan basin experienced a relatively low heat flow period in the Early Paleozoic,and an elevated paleo-heat flow,ranging 60-80 mW/m2 with a maximum as high as 100 mW/m2 around 259 Ma,from the beginning of the Late Paleozoic to the end of the early Permian,and a decreased paleo-heat flow from the late Permian to the late Triassic,and then ... |
| Keywords: | vitrinite reflectance paleo-heat flow method thermal history Emeishan mantle plume Sichuan basin |
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