23-25 September 2013
GEOMAR East shore
Europe/Berlin timezone
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Baiyun Slide and its relation to fluid migration in the northern slope of Southern China Sea

Presented by Mr. Wei LI on 23 Sep 2013 from 12:45 to 13:00
Type: Oral presentation, full-paper
Track: Oral presentations

Content

A large-scale submarine landslide (Baiyun Slide) covering an area of 10,000 km2 was identified from the multibeam bathymetric data, high-resolution 2D and 3D seismic data acquired in the Baiyun Sag, Pearl River Mouth Basin, northern South China Sea (SCS). Numerous polygonal faults are also found below the translational domain of the Baiyun Slide. Enhanced reflections, bright spots and pull-down reflection have been illustrated from the 2D and 3D seismic data, indicating the presence of gas. The headwall scarps of the slide are located stratigraphically above the sediments where the amplitude anomalies are identified. The focused fluid flow maybe leak from the gas reservoir and migrate upward into the base of the Baiyun Slide. Though the triggering mechanism of the Baiyun Slide is still poorly known, the fluid trapped below the slide will reduce the strength of the sediments and trigger the slope failure. We propose a conceptual model of the relationship between fluid migration and slope stability.

Place

Location: GEOMAR East shore
Address: Wischhofstr. 1-3 / D-24148 Kiel
Room: Lecture Hall Geb. 8A

Primary authors

  • Mr. Wei LI Institute of Oceanology, Chinese Academy of Sciences
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Co-authors

  • Shiguo WU Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  • Xiujuan WANG Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  • Fang ZHAO Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  • Wang DAWEI Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
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