Topographic features around Zhongshan Station,southeast of Prydz Bay

• 作 者: 冯守珍 薛佐 迟万清
• 机 构: First Institute of Oceanography,State Oceanic Administration of China,Dept.of Marine,Earth and Atmos
• 出 处: Chinese Journal of Oceanology and Limnology
• 发表日期: 2008年04期
• 关键词: southeast submarine terrain maintenance anchorage trough triggered usage erosion

Considering the complex topographic features of the southeast of Prydz Bay where China’s Zhongshan Station is located,three types of geomorphologic units can be identified,i.e., submarine slopes,canyons,and terrains.The major topographic features in the study area are the submarine canyon and trough system outside the calving ice front of Dalk Glacier.A 3.8 km×80 m fissure is found on the submarine terrain at Zhongshan Anchorage,which,once triggered by geological hazards such as earthquakes and ice falls,would be a threat to the usage and maintenance of the anchorage.

Considering the complex topographic features of the southeast of Prydz Bay where China’s Zhongshan Station is located, three types of geomorphologic units can be identified, ie, submarine slopes, canyons, and terrains. Major majorographic features in the study area are the submarine canyon and trough system outside the calving ice front of Dalk Glacier. A 3.8 km × 80 m fissure is found on the submarine terrain at Zhongshan Anchorage, which, once triggered by geological hazards such as earthquakes and ice falls, would be a threat to the usage and maintenance of the anchorage.