| Citation: | Di Zhou, Zhen Sun, Jie Liao, Zhongxian Zhao, Min He, Xiangjie Wu, Xiong Pang. Filling History and Post-Breakup Acceleration of Sedimentation in Baiyun Sag, Deepwater Northern South China Sea. Journal of Earth Science, 2009, 20(1): 160-171. doi: 10.1007/s12583-009-0015-2
|
The Baiyun (白云) sag in the southern Pearl River Mouth basin is the largest and deepest sag in deepwater northern South China Sea. Researches and exploration in this sag have revealed many distinct features of the sag. This article reports its filling history through backstripping of depth data of interpreted sequence boundaries. Maps of sediment rates of 10 sequences from 49 Ma to the present were constructed, showing the spatio-temporal variation of the sediment rate. Three stages of sediment infilling, 49–17.5 Ma, 17.5–10.5 Ma, and 10.5–0 Ma, were divided by abrupt changes of sedimentary patterns. If the breakup of the South China Sea took place at ~30 Ma, significant post-breakup acceleration of sedimentation was observed at 17.5–15.5 Ma and 13.8–12.5 Ma, indicating acceleration of subsidence at these times. We propose that the onset of strong post-breakup subsidence at ~17.5 Ma was an important tectonic event that changed the pattern of sedimentation from discrete and medium-rate deposition centers in both main and south subsags to restricted but high-rate deposition in the main subsag. The cause and implications of this newly recognized event need to be investigated.
| Briais, A., Patriat, P., Tapponnier, P., 1993. Updated Interpretation of Magnetic Anomalies and Seafloor Spreading Stages in the South China Sea: Implications for the Tertiary Tectonics of Southeast Asia. J. Geophys. Res., 98(B4): 6299–6328 doi: 10.1029/92JB02280 |
| Cande, S. C., Kent, D. V., 1995. Revised Calibration of the Geomagnetic Polarity Timescale for the Late Cretaceous and Cenozoic. J. Geophys. Res., 100(4): 6093–6095 http://www.soest.hawaii.edu/pwessel/courses/gg711/pdf/Cande+Kent_1995_JGR.pdf |
| Chen, H. Z., Wu, X. J., Zhou, D., et al., 2005. Meso-Cenozoic Faults in Zhujiang River Mouth Basin and Their Geodynamic Background. J. Tropical Oceanography, 24(2): 52–61 (in Chinese with English Abstract) http://en.cnki.com.cn/Article_en/CJFDTOTAL-RDHY200502006.htm |
| Chen, C., Shi, H., Xu, S., et al., 2003. Tertiary Hydrocarbon Formation in Eastern Pearl River Mouth Basin. Science Press, Beijing. 266 (in Chinese) |
| Clift, P., Lin, J., 2001. Preferential Mantle Lithospheric Extension under the South China Margin. Marine and Petroleum Geology, 18(8): 929–945 doi: 10.1016/S0264-8172(01)00037-X |
| Gong, Z. S., Li, S. T., 1997. Continental Margin Basin Analysis and Hydrocarbon Accumulation of the Northern South China Sea. Science Press, Beijing. 510 (in Chinese) |
| Gradstein, F. M., Ogg, J. G., Smith, A. G., et al., 2004. A New Geologic Time Scale, with Special Reference to Precambrian and Neogene. Episodes, 27(2): 83–100 doi: 10.18814/epiiugs/2004/v27i2/002 |
| Haq, B. U., Hardenbol, J., Vail, P. R., 1987. Chronology of Fluctuating Sea Levels since the Triassic. Science, 235(4793): 1156–1167 doi: 10.1126/science.235.4793.1156 |
| Huang, C., Zhou, D., Sun, Z., et al., 2005. Deep Crustal Structure of Baiyun Sag, Northern South China Sea Revealed from Deep Seismic Reflection Profile. Chinese Science Bulletin, 50(11): 1131–1138 doi: 10.1360/04wd0207 |
| Jarvis, G. T., McKenzie, D. P., 1980. Sedimentary Basin Formation with Finite Extension Rates. Earth and Planetary Science Letters, 48(1): 42–52 doi: 10.1016/0012-821X(80)90168-5 |
| Liang, H., Li, P., 1992. Cenozoic Magmatic Activities in the Pearl River Mouth Basin. Guangdong Petroleum, 16: 81–103 (in Chinese). |
| McKenzie, D. P., 1978. Some Remarks on the Development of Sedimentary Basins. Earth and Planetary Science Letters, 40(1): 25–32 doi: 10.1016/0012-821X(78)90071-7 |
| Nissen, S. S., Hayes, D. E., Buhl, P., et al., 1995. Deep Penetration Seismic Soundings across the Northern Margin of the South China Sea. J. Geophys. Res., 100(B11): 22407–22433 doi: 10.1029/95JB01866 |
| Pang, X., Yang, S., Zhu, M., et al., 2004. Deep-Water Fan Systems and Petroleum Reaources on the Northern Slope of the South China Sea. Acta Geologica Sinica, 78(3): 626–631 http://qikan.cqvip.com/Qikan/Article/Detail?id=11250581 |
| Pang, X., Chen, C., Peng, D., et al., 2007a. The Pearl River Deep-Water Fan System & Petroleum in South China Sea. Science Press, Beijing. 361 (in Chinese) |
| Pang, X., Chen, C., Peng, D., et al., 2007b. Sequence Stratigraphy of Pearl River Deep-Water Fan System in the South China Sea. Earth Science Frontiers, 14(1): 220–229 (in Chinese with English Abstract) doi: 10.1016/S1872-5791(07)60010-4 |
| Pang, X., Chen, C., Shao, L., et al., 2009. Baiyun Movement: A Significant Tectonic Event on Oligocene/Miocene Boundary in the Northern South China Sea and Its Regional Implications. Journal of Earth Science, 20(1) http://www.cnki.com.cn/Article/CJFDTotal-ZDDY200901005.htm |
| Patriat, P., 1987. L'évolution du Système de Dorsales de i'Ocèan Indien. Terres Australes et Antartiques Françaises |
| Ru, K., Pigott, J. D., 1986. Episodic Rifting and Subsidence in the South China Sea. AAPG Bull., 70: 1136–1155 http://www.researchgate.net/publication/255129811_Episodic_rifting_and_subsidence_in_the_South_China_sea |
| Sclater, J. G., Christie, P. A. F., 1980. Continental Stretching: An Explanation of the Post-Mid-Cretaceous Subsidence of the Central North Sea Basin. J. Geophys. Res., 85(B7): 3711–3739 doi: 10.1029/JB085iB07p03711 |
| Shao, L., Li, X. H., Wang, P. X., et al., 2004. Sedimentary Record of the Tectonic Evolution of the South China Sea since the Oligocene—Evidence from Deep Sea Sediments of ODP Site 1148. Advances in Earth Science, 19(4): 539–544 (in Chinese with English Abstract) http://www.researchgate.net/publication/285749840_Sedimentary_record_of_the_tectonic_evolution_of_the_South_China_Sea_since_the_Oligocene-Evidence_from_deep_sea_sediments_of_ODP_Site_1148 |
| Shi, W., Chen, H., Chen, C., et al., 2007. Pressure Evolution and Hydrocarbon Migration in the Baiyun Sag, Pearl River Mouth Basin, China. Front. Earth Sci. China, 1(2): 241–250 doi: 10.1007/s11707-007-0030-5 |
| Stam, B., Gradstein, F. M., Lloyd, P., et al., 1987. Algorithms for Burial and Subsidence History. Computers and Geosciences, 13(4): 317–349 doi: 10.1016/0098-3004(87)90006-9 |
| Sun, Z., Zhong, Z. H., Zhou, D., et al., 2008. Dynamics Analysis of the Baiyun Sag in the Pearl River Mouth Basin, North of the South China Sea. Acta Geologica Sinica, 82(1): 73–83 doi: 10.1111/j.1755-6724.2008.tb00326.x/abstract |
| Xie, X. N., Muller, R. D., Li, S. T., et al., 2006. Origin of Anomalous Subsidence along the Northern South China Sea Margin and Its Relationship to Dynamic Topography. Marine and Petroleum Geology, 23(7): 745–765 doi: 10.1016/j.marpetgeo.2006.03.004 |
| Yao, B. C., Zeng, W., Hayes, D. E., et al., 1994. The Geological Memoir of South China Sea Surveyed Jointly by China & USA. China Univ. Geosciences Press, Wuhan. 204 (in Chinese) |
| Zhou, D., Ru, K., Chen, H. Z., 1995. Kinematics of Cenozoic Extension on the South China Sea Continental Margin and Its Implications for the Tectonic Evolution of the Region. Tectonophysics, 251(1–4): 161–177 https://www.sciencedirect.com/science/article/abs/pii/0040195195000186 |
| Zhou, D., Wang, W. Y., Wang, J. L., et al., 2006. Mesozoic Subduction-Accretion Zone in Northeastern South China Sea Inferred from Geophysical Interpretations. Science in China (Series D), 49(5): 471–482 doi: 10.1007/s11430-006-0471-9 |
| Zhou, D., Sun, Z., Chen, H. Z., et al., 2008a. Mesozoic Paleogeography and Tectonic Evolution of South China Sea and Adjacent Areas in the Context of Tethyan and Paleo-Pacific Interconnections. Island Arc, 17(2): 186–207 doi: 10.1111/j.1440-1738.2008.00611.x |
| Zhou, D., Hu, D. K., He, M., et al., 2008b. The Selection of Fitting Curve in Time-Depth Transformation of Deep-Seated Strata and Crust. Earth Science—Journal of China University of Geosciences, 33(4): 531–537 (in Chinese with English Abstract) doi: 10.3799/dqkx.2008.067 |
Figures(6) / Tables(2)
Copyright © 2013-2020 Journal of Earth Science 鄂ICP备15021562号-2
Tel: +86-27-67885075 Fax: +86-27-67885075 E-mail: xbb@cug.edu.cn
Address: Editorial Office of Journal, China University of Geosciences, Yujiashan, Wuhan, Hubei 430074, P. R. China
Supported by:
Beijing Renhe Information Technology Co. Ltd
E-mail:
info@rhhz.net
DownLoad:
