The Younger Dryas cold period caused major changes in vegetation and depositional environments. This study focuses on the aeolian river-connected dunes along the former, Weichselian Late Glacial, course of the Scheldt River in the southern Netherlands. Aeolian dunes along the Scheldt have received little attention, as they are partly covered by Holocene peat and marine deposits. The spatial distribution of the dunes is reconstructed by digital elevation model analysis and coring transects. Dunes are present on the high eastern bank of the Scheldt and in the subsurface of the polder area west of the Brabantse Wal escarpment. A reach-specific higher channel gradient probably caused a channel pattern change from meandering to braiding during the Younger Dryas. This enabled deflation from the braid plain and accumulation in source-bordering river dunes east of the incised and terraced, subsurface Late Pleistocene Scheldt valley. The age of the dune formation is established by pollen analysis and radiocarbon dating of underlying and overlying peat beds. The peat layer below the dune at Zomerbaan is attributed to the Allerød and early Younger Dryas periods. Dune formation occurred predominantly during the second part of the Younger Dryas stadial, both on and in front (west) of the Brabantse Wal escarpment. Wind direction was reconstructed by geomorphic analysis and sedimentary structures on lacquer peels. A southwesterly wind direction is demonstrated by the parabolic dune morphology. For the first time, Younger Dryas wind direction is reconstructed based on adhesion ripple cross-laminated sets on lacquer peels. Sand-transporting south-southwesterly winds were dominant during the Younger Dryas, most likely during summer.

中文翻译：

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沿斯海尔德河（荷兰南部 - 比利时北部）与源头接壤的风沙丘形成是由新仙女木降温、河流坡度高和夏季西南风造成的

新仙女木寒冷期引起植被和沉积环境的重大变化。这项研究的重点是荷兰南部斯海尔德河沿前魏克瑟利亚晚冰期的与风成河相连的沙丘。沿斯海尔德河的风成沙丘很少受到关注，因为它们部分被全新世泥炭和海洋沉积物覆盖。通过数字高程模型分析和取芯样带重建沙丘的空间分布。沙丘存在于斯海尔德河的高东岸和布拉班茨瓦尔悬崖以西的圩田地区的地下。在新仙女木期间，特定于河段的较高通道梯度可能导致通道模式从蜿蜒变为编织。这使得辫状平原的通货紧缩和在切割和梯田以东更新世晚期斯海尔德河谷以东的源边界河沙丘的积累成为可能。沙丘形成的年龄是通过花粉分析和下层和上层泥炭层的放射性碳测年确定的。Zomerbaan 沙丘下方的泥炭层归因于 Allerød 和早期的 Younger Dryas 时期。沙丘的形成主要发生在 Younger Dryas stadial 的第二部分，在 Brabantse Wal 悬崖的前面和前面（西部）。通过地貌分析和漆皮上的沉积结构重建风向。抛物线沙丘形态表明西南风向。首次，Younger Dryas 风向是基于漆皮上的粘附波纹交叉层压组重建的。在年轻的仙女木，最有可能在夏季，风沙运输的南-西南风占主导地位。