Abstract:
The Philippine Basin has the most complex submarine topography in the world due to the movement of the three plates, the Eurasian the Australian and the Pacific. Taking the Kyushu-Palau ridge as a boundary, the West Philippine Basin shows different structural patterns and topographic features with the Parece Vela Basin where abundant deep-sea geological phenomena and geomorphic features occur.. The high-resolution profiles of the deep seabed can be acquired with the parametric array shallow layer profiler forits transmitting characteristics of difference-frequency and narrowband beam. In this paper, the characteristics of submarine landslides, the sedimentary differences around sea-knolls and the migration of shallow gas and submarine fluid are carefully studied with the East-West trending shallow strata sections across the ridge. The Genetic mechanism of the geological characteristics is discussed by the integration of structural and topographical features. The research of shallow stratigraphic architectures made on vertical short-time scale may provide more evidence and ideas for the sedimentological and geological researches of the region.