WANG Xin, XU Guohui, SUN Yongfu, HU Guanghai, YU Yueqian, LIN Lin. STORM-WAVES-INDUCED SEABED SEDIMENT LIQUEFACTION AND RE-STRATIFICATION ON THE YELLOW RIVER SUBAQUEOUS DELTA[J]. Marine Geology & Quaternary Geology, 2013, 33(6): 29-40. DOI: 10.3724/SP.J.1140.2013.06029
Citation: WANG Xin, XU Guohui, SUN Yongfu, HU Guanghai, YU Yueqian, LIN Lin. STORM-WAVES-INDUCED SEABED SEDIMENT LIQUEFACTION AND RE-STRATIFICATION ON THE YELLOW RIVER SUBAQUEOUS DELTA[J]. Marine Geology & Quaternary Geology, 2013, 33(6): 29-40. DOI: 10.3724/SP.J.1140.2013.06029
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STORM-WAVES-INDUCED SEABED SEDIMENT LIQUEFACTION AND RE-STRATIFICATION ON THE YELLOW RIVER SUBAQUEOUS DELTA

  • 1. Key Laboratory of Marine Environment and Ecology, Ministry of Education, Qingdao 266100, China;

  • 2. Ocean University of China, Qingdao 266100, China;

  • 3. First Institute of Oceanography, SOA, Qingdao 266061, China;

  • 4. Key Lab of Seafloor Resource and Exploration Technique of Ministry of Education, Qingdao 266100, China

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  • Received Date: May 26, 2012
  • Revised Date: July 25, 2012
    Graphical Abstract
    • Abstract
  • There are many collapse depressions at the Yellow River subaqueous Delta, of which the inner strata show disturbed structures. Through engineering geological investigation in the disturbed strata in depressions, particle size, bulk density, water content and soil strength of the sediments were collected, as well as features of the shallow-stratum acoustics profiles. In laboratory, flume experiments were carried out using the silty soil taken from the Yellow River delta for bottom bed. An engineering strata configuration similar to the disturbed stratum at the Yellow River subaqueous Delta was formed on the bed when it was liquefied and movable. It is concluded that liquefaction and movement of the silty seabed were caused by strong waves during the storm, leading to differentiation of sediments granularity and then in-situ re-stratification. Structural features of the storm deposited strata in-situ, formed by wave-induced liquefaction and movement, were also put forward.
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