Tectono-thermal evolution of the Reed Bank Basin,Southern South China Sea |
| |
| Institution: | 1. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. CNOOC Research Institute, Beijing 100027, China;1. U.A. Asanaliev Kyrgyz Mining Institute, 215 Chuy Street, Bishkek 720001, Kyrgyzstan;2. A.P. Karpinsky Russian Geological Research Institute (FGUP “VSEGEI”), 74 Sredny Prospect, VSEGEI, St. Petersburg 199106, Russia;1. Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur Campus, Mohanpur 741246, West Bengal, India;2. Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627, USA;1. Institute of Oceanography, National Taiwan University, Taipei, Taiwan;2. National Oceanic Centre, Southampton, UK;3. Marine Exploration Instrument Center, National Taiwan University, Taipei, Taiwan;4. Offshore Exploration & Production Division, Exploration & Production Business Division, Chinese Petroleum Company, Taipei, Taiwan;5. GeoResource Research Center, National Cheng Kung University, Tainan, Taiwan;6. Bureau of Mines, Ministry of Economic Affair, Taipei, Taiwan;1. Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. State Key Laboratory of Marine Geology, School of Ocean and Earth Science, Tongji University, Shanghai 200092, China;4. Guangzhou Marine Geological Survey, Guangzhou 510760, China;5. Departamento de Geociências and CESAM, Universidade de Aveiro, Aveiro 3800, Portugal;1. Institute for Geophysics, University of Texas at Austin (R2200), 10100 Burnet Rd., Austin, TX 78758-4445, USA;2. Institute of Oceanography, National Taiwan University, P.O. Box 23-13, Taipei 106, Taiwan |
| |
| Abstract: | The Reed Bank Basin in the southern margin of the South China Sea is considered to be a Cenozoic rifted basin. Tectono-thermal history is widely thought to be important to understand tectonics as well as oil and gas potential of basin. In order to investigate the Cenozoic tectono-thermal history of the Reed Bank Basin, we carried out thermal modeling on one drill well and 22 pseudo-wells using the multi-stage finite stretching model. Two stages of rifting during the time periods of ～65.5–40.4 Ma and ～40.4–28.4 Ma can be recognized from the tectonic subsidence rates, and there are two phases of heating corresponding to the rifting. The reconstructed average basal paleo-heat flow values at the end of the rifting events are ～60 and ～66.3 mW/m2, respectively. Following the heating periods, this basin has undergone a persistent thermal attenuation phase since ～28.4 Ma and the basal heat flow cooled down to ～57.8–63.5 mW/m2 at present. In combination with the radiogenic heat production of the sedimentary sequences, the surface heat flow of the Reed Bank Basin ranges from ～60.4 to ～69.9 mW/m2. |
| |
| Keywords: | Reed Bank Basin Stretching factor Tectonic evolution Thermal history Cenozoic |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
