The submarine landforms and shallow sediment record are presented from Hambergbukta, southeastern Spitsbergen using swath‐bathymetric, subbottom acoustic, and sediment core data. The mapped landforms include large terminal and end‐moraines with associated debrisflow aprons on their distal flanks, drumlinized till surface, glacial lineations, medial and retreat moraines, crevasse squeeze ridge networks, eskers, as well as iceberg‐produced terraces and plough‐marks. Analysis of the landforms and landform assemblages in combination with the sediment core data and aerial imagery studies reveal a complex and dynamic glacial history of Hambergbukta. We present a detailed history of Hambergbreen glacier indicating two previously unknown surges as well as new details on the nature of the subsequent ice‐margin retreat. The results from two gravity cores combined with the shallow acoustic stratigraphy and high‐resolution bathymetry suggest that the c. AD 1900 surge was less extensive than previously thought and the retreat was most likely rapid after the c. AD 1900 and 1957 surges of the Hambergbreen. Mixed benthic foraminifera collected from the outer fjord basin date to 2456 cal. a BP, suggesting older sediments were re‐worked by the c. AD 1900 surge. This highlights the importance of exercising caution when using foraminifers for dating surge events in fjord basins enclosed by prominent end‐moraines.

中文翻译：

---

从海底地貌和沉积物核心，斯匹次卑尔根，斯瓦尔巴特群岛重建的汉贝格布克冰川动力学和冰消历史

海底地形和浅层沉积物记录是使用斯巴特测深法，地下声波和沉积物岩心数据，从斯匹次卑尔根东南部的汉贝格布克塔得出的。测绘的地形包括大型的末端和末端的沟壑，在它们的远侧腹壁有相关的泥石流围裙，鼓状的直至地表，冰川纹线，内侧和向后的沟壑，裂隙挤压的脊状网络，扰流器，以及冰山产生的阶地和犁痕。结合沉积物核心数据和航空影像研究对地貌和地貌组合进行分析，揭示了汉堡的复杂而动态的冰川历史。我们介绍了汉贝格冰川的详细历史，表明了两次以前未知的激增，以及有关随后的冰缘退缩的性质的新细节。c。公元1900年的激增并未像以前想象的那样广泛，撤退很可能是在c之后迅速撤退。公元1900年和1957年，汉贝格勃林（Hambergbreen）激增。从峡湾外盆地收集的混合底栖有孔虫可追溯至2456 cal。a BP，表明较老的沉积物被c重新处理了。1900年激增。这突出了在有孔虫包围的峡湾盆地中使用有孔虫来对潮涌事件进行约会时必须谨慎的重要性。