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@@ The sediment dispersal system in southwestern Taiwan margin consists of two main parts: the subaerial drainage basin and the offshore receiving marine basin. In plan view, this sediment dispersal system can be further divided into five geomorphic units: (1) the Gaoping (Kaoping) River drainage basin, (2) the Gaoping (Kaoping) Shelf, (3) the Gaoping (Kaoping) Slope, (4) the Gaoping/Kaoping Submarine Canyon and (5) the Manila Trench in the northernmost South China Sea. The Gaoping/Kaoping River drainage basin is a small (3250 km2), tectonically active and overfilled foreland basin, receiving sediments derived from the uprising Central Range of Taiwan with a maximum elevation of 3952 m. The Gaoping/ Kaoping Submarine Canyon begins at the mouth of the Gaoping/Kaoping River, crosses the narrow Gaoping/Kaoping Shelf (-10 km) and the Gaoping/Kaoping Slope, and finally merges into the northern termination of the Manila Trench over a distance of-260 km. The SW Taiwan margin dispersal system is characterized by a direct river-canyon connection with a narrow shelf and frequent episodic sediment discharge events in the canyon head.