【摘要】 本文使用中山锚地选址测绘资料及考察记录,对中山锚地现代地形地貌特征进行了分析。基于中山站附近海湾海底地形复杂多变,水深变化大的特点,将研究区域主要分为水下岸坡、海底峡谷和台地3个大的地貌单元,且对海底冲刷沟槽、水下低丘、洼地等次一级地貌类型发育进行了分析。同时指出位居台地上的中山锚地发育有裂隙带,此裂隙带横跨台地,长约3.8km,宽约80m,可能会在特定条件下,如地震、冰崩等,形成因海底斜坡失稳而向深海滑塌的地质灾害。更多还原

【Abstract】 Based on in situ bathymetric data collected during 15th Chinese National Antarctic Research Expedition(1998/1999),the area around Zhongshan Anchorage and top of Prydz Bay is divided into three geomorphologic units as submarine slopes,canyons and terrains.A 3.8 km×80 m fissure is found on the submarine terrain at Zhongshan Anchorage ground,which,once triggered by geological hazards such as earthquakes and ice falls,would be a threaten to the usage and maintenance of the anchorage.更多还原