Mass transport deposits and processes in the north slope of the Xisha Trough, northern South China Sea

详细信息    查看全文

• 作者：Zhiliang Qin ; Shiguo Wu ; Dawei Wang ; Wei Li ; Shaojun Gong…
• 关键词：South China Sea ; mass transport deposits ; submarine slides ; gravity flow ; deepwater channel system
• 刊名：Acta Oceanologica Sinica
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：34
• 期：9
• 页码：117-125
• 全文大小：10,425 KB
• 参考文献：Beaubouef R T, Abreu V. 2003. Basin 4 of the Brazos-Trinity slope system, western Gulf of Mexico. Perkins Research Conference, 23: 45-6
  Bexfield C E, McBride J H, Pugin A J M, et al. 2006. Integration of Pand SH-wave high-resolution seismic reflection and microgravity techniques to improve interpretation of shallow subsurface structure: New Madrid seismic zone. Tectonophysics, 420(1): 5-1CrossRef
  Bull S, Cartwright J, Huuse M. 2009. A review of kinematic indicators from mass-transport complexes using 3D seismic data. Marine and Petroleum Geology, 26(7): 1132-151CrossRef
  Dong Dongdong, Zhang Gongcheng, Zhong Kai, et al. 2009. Tectonic evolution and dynamics of deepwater area of Pearl River Mouth Basin, Northern South China Sea. Journal of Earth Science, 20(1): 147-59CrossRef
  Dott R H. 1963. Dynamics of subaqueous gravity depositional processes. AAPG Bulletin, 47: 104-28
  Ecker C, Dvorkin J, Nur A. 1997. Estimating the amount of gas hydrate and free gas from surface seismic. Stanford Exploration Project, Report 95, 10: 173-95
  Felix M, Peakall J. 2006. Transformation of debris flows into turbidity currents: mechanisms inferred from laboratory experiments. Sedimentology, 53: 107-23CrossRef
  Garziglia S, Migeon S, Ducassou E, et al. 2008. Mass-transport deposits on the Rosetta province (NW Nile deep-sea turbidite system, Egyptian margin) -Characteristics, distribution, and potential causal processes. Marine Geology, 250(3-): 180-98CrossRef
  Gee M J R, Uy H S, Warren J, et al. 2007. The Brunei slide: A giant submarine landslide on the North West Borneo Margin revealed by 3D seismic data. Marine Geology, 246: 9-3CrossRef
  Georgiopoulou A, Wynn R B, Masson D G, et al. 2009. Linked turbidite–debrite resulting from recent Sahara Slide headwall reactivation. Marine and Petroleum Geology, 26: 2021-031CrossRef
  Gong Chenglin, Wang Yingmin, Zhu Weilin, et al. 2011. The Central Submarine Canyon in the Qiongdongnan Basin, northwestern South China Sea: Architecture, sequence stratigraphy, and depositional processes. Marine and Petroleum Geology, 28: 1690-702CrossRef
  Grevemeyer I, Rosenberger A, Villinger H. 2000. Natural gas hydrates on the continental slope off Pakistan: constraints from seismic techniques. Geophys, 140(2): 295-10CrossRef
  Hampton M A. 1972. The role of subaqueous debris flows in generating turbidity currents. Journal of Sedimentary Research, 42: 775-93
  Hampton M A, Locat L, Lee H J. 1996. Submarine landslides. Reviews of Geophysics, 34(1): 33-9CrossRef
  Harbitz C B, L?vholt F, Pedersen G, et al. 2006. Mechanisms of tsunami generation by submarine landslides: a short review. Norwegian Journal of Geology, 86: 255-64
  He Yunlong, Xie Xinong, Li Junliang, et al. 2010. Depositional characteristics and controlling factors of continental slope system in the Qiongdongnan Basin. Geological Science and Technology Information (in Chinese), 29(2): 118-23
  Hesthammer J H, Fossen. 1999. Evolution of geometries of gravitational collapse structures with examples from Statfjord field, northern North Sea. Marine and Petroleum Geology, 16(3): 259-81CrossRef
  Lamarche G C, Joanne C, Collot J Y. 2008. Successive, large masstransport deposits in the south Kermadec fore-arc basin, New Zealand: The Matakaoa submarine instability complex. Geochemistry Geophysics Geosystems, 9: 1-0CrossRef
  Leat P T, Tate A J, Tappin D R, et al. 2010. Growth and mass wasting of volcanic centers in the northern South Sandwich arc, South Atlantic, revealed by new multibeam mapping. Marine Geology, 275(1-): 110-26CrossRef
  Lee C J, Nott J A, Keller F B. 2004. Seismic expression of the Cenozoic Mass Transport Complexes, Deepwater Tarfaya-Agadir Basin, offshore Morocco. Annual Offshore Technology Conference, 16741: 18
  Liang Jin, Wang Hongbing, Guo Yiqun. 2006. Study of seismic velocity about gas hydrates in the northern slope of the South China Sea. Geoscience, 20(1): 123-30
  Liu Lanfang, Wu Lushan. 2006. Topographic and morphologic characteristics and genesis analysis of Xisha Trough sea area in the South China Sea. Marine Geology & Quaternary Geology (in Chinese), 26(3): 7-5
  Liu Feng, Wu Shiguo, Sun Yunbao. 2010. A quantitative analysis for submarine slope instability of the northern South China Sea due to gas hydrate dissociation. Chinese J Geophys, 53(4): 946-53
  López C D, Spence G D, Kelley D S. 2010. Frontal ridge slope failure at the northern Cascadia margin: Margin-normal fault and gas hydrate control. Geology, 38: 967-70CrossRef
  Martinez J F, Cartwright J, Hall B. 2005. 3D seismic interpretation of slump complexes: examples from the continental margin of Israel. Basin Research, 17(1): 83-08CrossRef
  Maslin M, Mikkelsen N, Haq B. 1998. Sea-level-and gas-hydrate-controlled catastrophic sediment failures of the Amazon Fan. Geology, 26(12): 1107-110CrossRef
  McCaffrey W, Kneller B. 2001. Process controls on the development of stratigraphic tr
• 作者单位：Zhiliang Qin (1)
  Shiguo Wu (2)
  Dawei Wang (2)
  Wei Li (2)
  Shaojun Gong (3)
  Lijun Mi (4)
  George Spence (5)
  
  1. Tianjin Research Institute for Water Transport Engineering, Ministry of Transport, Tianjin, 300456, China
  2. Laboratory of Marine Geophysics and Deep Sea Georesource, Sanya Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
  3. Tianjin Exploration Center of Marine Geology, Tianjin, 300170, China
  4. Department of Exploration, China National Offshore Oil Corporation, Beijing, 100010, China
  5. School Earth & Ocean Sciences, University of Victoria, Victoria, V8p 5c2, Canada
  
• 刊物主题：Oceanography; Climatology; Ecology; Engineering Fluid Dynamics; Marine & Freshwater Sciences; Environmental Chemistry;
• 出版者：Springer Berlin Heidelberg
• ISSN：1869-1099

文摘

Triple mass-transport deposits (MTDs) with areas of 625, 494 and 902 km2, respectively, have been identified on the north slope of the Xisha Trough, northern South China Sea margin. Based on high-resolution seismic reflection data and multi-beam bathymetric data, the Quaternary MTDs are characterized by typical geometric shapes and internal structures. Results of slope analysis showed that they are developed in a steep slope ranging from 5° to 35°. The head wall scarps of the MTDs arrived to 50 km in length (from headwall to termination). Their inner structures include well developed basal shear surface, growth faults, stepping lateral scarps, erosion grooves, and frontal thrust deformation. From seismic images, the central deepwater channel system of the Xisha Trough has been filled by interbedded channel-levee deposits and thick MTDs. Therefore, we inferred that the MTDs in the deepwater channel system could be dominated by far-travelled slope failure deposits even though there are local collapses of the trough walls. And then, we drew the two-dimensional process model and threedimensional structure model diagram of the MTDs. Combined with the regional geological setting and previous studies, we discussed the trigger mechanisms of the triple MTDs. Keywords South China Sea mass transport deposits submarine slides gravity flow deepwater channel system