南极中山锚地与普里兹湾顶地形地貌特征  

TOPOGRAPHIC FEATURES OF ZHONGHSAN ANCHORAGE AND THE TOP OF PRYDZ BAY

作　　者：冯守珍[1] 迟万清[1] 薛佐 

机构地区：[1]国家海洋局第一海洋研究所 [2]Department of Marine,Earth and Atmospheric Sciences,North Carolina State University,Raleigh,NC27695,USA

出　　处：《极地研究》2007年第2期79-86,共8页Chinese Journal of Polar Research

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。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.

关 键 词：普里兹湾 南极 中山站 中山锚地 地形地貌 

分 类 号：P931.2[天文地球—自然地理学] P941.61