[SCG65-P07] Three types of submarine canyons offshore southwest Taiwan
Keywords:submarine canyon, Taiwan
Canyons off southwestern Taiwan are classified into three different types: 1. river-connected; 2. shelf-indented; 3. blind (confined to the slope). Type 1 canyon, the Kaoping Canyon, is directly connected to the Kaoping River, and is supplied with much sediment. The canyon head segment thus has relatively high tendency to generate hyperpycnal flows during flood seasons. The Penghu, Shoushan, Kaohsiung, and Fangliao canyon belong to type 2. The Fangliao Canyon is intensely incised into the shelf. The other three canyons are characterized by relatively weak headward erosion into the shelf. The Hongtsai Canyon is a type 3 canyon and is mainly resulted from activity of mud diapir and thrust faulting.