Beringia today is a partly submerged Arctic region bordered by the Lena River in East Siberia and the Mackenzie River in North America. Whilst emergent at times of eustatic sea-level fall, the northern Beringian Margin was affected by the repeated growth and decay of regional ice sheets. The size and dynamism of these ice sheets are a subject of some debate that can be addressed using geophysical data, which reveal widespread evidence for glacial processes on the continental shelves. We use published and reprocessed 2D multichannel seismic reflection data from the northern margins of Beringia between 147° E to 149° W to investigate their glacially deposited sediments in detail. Deposition of up to 450 m of sediments caused the shelf break to migrate basinward by up to 13 km between 165° E and 161° W. On the Kucherov Terrace (175° E to 176° W) the data show evidence for erosion by grounded ice in water depths of 1200 m. Deposits in the Northwind Basin, between 165° W and 161° W, are separated by continuous reflections indicating at least 3–5 glacial advances. However, the continental slopes of the western East Siberian Sea and the Beaufort Sea lack the thick glacial deposits found in the intervening region. Overall, the volume of glacial deposited sediments along the margins of Beringia are significantly smaller than the reported amounts along the Norwegian and Greenland margins. Therefore, we suggest a less dynamic and fewer number of glaciations of Beringia compared to other glaciated margins during the Quaternary.

今天的白令洲是一个部分被淹没的北极地区，与东西伯利亚的勒纳河和北美的麦肯齐河接壤。虽然在海平面下降时出现，但白令海北部边缘受到区域冰盖反复生长和腐烂的影响。这些冰盖的大小和活力是一些争论的主题，可以使用地球物理数据来解决，这些数据揭示了大陆架上冰川过程的广泛证据。我们使用来自白令岛北部边缘 147° E 到 149° W 之间的已发表和再处理的 2D 多道地震反射数据来详细研究它们的冰川沉积物。高达 450 m 的沉积物沉积导致陆架断裂在 165° E 和 161° W 之间向盆地迁移长达 13 km。在 Kucherov Terrace（东经 175° 至西经 176°）上，数据显示水深 1200 米的地面冰层侵蚀的证据。Northwind 盆地的沉积物在 165° W 和 161° W 之间，被连续反射分开，表明至少有 3-5 次冰川推进。然而，东西伯利亚海西部和波弗特海的大陆斜坡缺乏在其间地区发现的厚厚的冰川沉积物。总体而言，白令洲边缘的冰川沉积物体积明显小于挪威和格陵兰边缘报道的数量。因此，我们建议与第四纪期间的其他冰川边缘相比，白令陆的冰川活动较少且数量较少。在 165° W 和 161° W 之间，被连续反射分开，表明至少有 3-5 次冰川推进。然而，东西伯利亚海西部和波弗特海的大陆斜坡缺乏在其间地区发现的厚厚的冰川沉积物。总体而言，白令洲边缘的冰川沉积物体积明显小于挪威和格陵兰边缘报道的数量。因此，我们建议与第四纪期间的其他冰川边缘相比，白令陆的冰川活动较少且数量较少。在 165° W 和 161° W 之间，被连续反射分开，表明至少有 3-5 次冰川推进。然而，东西伯利亚海西部和波弗特海的大陆斜坡缺乏在其间地区发现的厚厚的冰川沉积物。总体而言，白令洲边缘的冰川沉积物体积明显小于挪威和格陵兰边缘报道的数量。因此，我们建议与第四纪期间的其他冰川边缘相比，白令陆的冰川活动较少且数量较少。Beringia 边缘的冰川沉积物体积明显小于挪威和格陵兰边缘报道的数量。因此，我们建议与第四纪期间的其他冰川边缘相比，白令陆的冰川活动较少且数量较少。Beringia 边缘的冰川沉积物体积明显小于挪威和格陵兰边缘报道的数量。因此，我们建议与第四纪期间的其他冰川边缘相比，白令陆的冰川活动较少且数量较少。