Chronology of Pleistocene ice-dammed lake outburst floods in the Altai Mountains, Siberia

在晚更新世，一些世界上最大的洪水发生在西伯利亚的阿拉泰山脉。在鄂毕河的源头，先进的山谷冰川堵塞了丘雅河的航道，形成了冰堰湖，反复被灾难性的暴发洪水排干。以前的重建结果或多或少地导致了区域更新世冰川作为事件的主要触发因素的时间和动力学的一致情景。测年技术在方法和技术上的进步提高了对时间动态的了解，但也增加了由于矛盾数据数量不断增加而带来的不确定性。这种不确定性导致一些人怀疑之前关于俄罗斯阿拉泰山脉冰川和相关洪水年代学的一些发现。通过该领域专家最先进的OSL测年技术的应用，我们希望提高对暴发洪水的时空动力学的了解，作为该地区冰川的指示，该地区可能被视为中亚的关键位置。

In the late Pleistocene, some of the largest floods in the world took place in the Siberian Altai Mountains. In the headwaters of the River Ob, advanced valley glaciers blocked the course of the River Chuya and formed ice-dammed lakes that repeatedly drained by catastrophic outburst floods. Previous reconstructions resulted in more or less consistent scenarios of the timing and dynamics of the regional Pleistocene glaciation being the main trigger of the events. Methodological and technological progress in dating techniques have improved knowledge of the temporal dynamics but also increased the uncertainty due to an increasing number of contradictory data. This uncertainty has led some to doubt some previous findings of the chronology of the glaciation and related outburst floods in the Russian Altai Mountains. By the application of state-of-the-art techniques of OSL-dating by experts in the field we want to improve the knowledge of the temporal and spatial dynamics of the outburst floods as indicators of the glaciation in the area, which might be seen as a key location for Central Asia.