Marine-geophysical evidence on sea-floor morphology and shallow acoustic stratigraphy are used to examine the substrate around the location at which Sir Ernest Shackleton's ship Endurance sank in 1915 and on the continental slope-shelf sedimentary system above this site in the western Weddell Sea. Few signs of turbidity-current and mass-wasting activity are found near or upslope of the wreck site, and any such activity was probably linked to full-glacial higher-energy conditions when ice last advanced across the continental shelf. The wreck is well below the maximum depth of iceberg keels and will not have been damaged by ice-keel ploughing. The wreck has probably been draped by only a few centimetres of fine-grained sediment since it sank in 1915. Severe modern sea-ice conditions hamper access to the wreck site. Accessing and investigating the wreck of Endurance in the Weddell Sea therefore represents a significant challenge. An ice-breaking research vessel is required, and even this would not guarantee that the site could be reached. Heavy sea-ice cover at the wreck site, similar to that encountered by Agulhus II during the Weddell Sea Expedition 2019, would also make the launch and recovery of autonomous underwater vehicles and remotely operated vehicles deployed to investigate the Endurance wreck problematic.

中文翻译：

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南极洲韦德尔海西部的海底和海冰状况，位于欧内斯特·沙克尔顿爵士号的“耐力号”号残骸周围

海底形态和浅层声学地层学的海洋地球物理证据被用来检查欧内斯特·沙克尔顿爵士的船所在位置周围的基质耐力1915 年沉没，位于威德尔海西部该地点上方的大陆斜坡-陆架沉积系统中。在沉船地点附近或上坡处几乎没有发现浊流和质量消耗活动的迹象，任何此类活动都可能与冰最后一次穿过大陆架时的全冰川高能条件有关。沉船远低于冰山龙骨的最大深度，不会因冰龙骨耕作而受损。自 1915 年沉没以来，沉船可能只覆盖了几厘米厚的细粒沉积物。严重的现代海冰条件阻碍了进入沉船现场。访问和调查沉船耐力因此，在威德尔海海域是一项重大挑战。需要一艘破冰研究船，即使这样也不能保证可以到达该地点。沉船现场有厚厚的海冰覆盖，类似于阿古鲁斯二世在 2019 年威德尔海上探险期间，还将发射和回收自主水下航行器和远程操作车辆，用于调查耐力破坏有问题。