漳腊黄土剖面晚更新世以来磁化率数据集（130kaBP至今）

格陵兰冰芯和北大西洋深海沉积记录揭示了晚更新世以来气候变化的高频振荡特征，这种气候不稳定性进一步得到了高纬以外地区若干地质记录的证实。然而，要深入理解这些高频气候振荡旋回(D/O)和突变事件(Heinrich)的形成机制，尤其是它对北半球其它地区气候、环境和生态会造成什么样的影响和影响途径，还有赖于全球范围内寻找更多的高分辨率气候环境记录及其深入的时空对比分析。目前对川西黄土的研究，主要集中对黄土的底界年龄以及单个剖面的气候记录的框架性研究，对于川西地区末次冰期千年尺度的特征缺乏详细的探讨。为了明确川西地区千年尺度的气候变化特征，重建川西地区气候演化的时间序列，对川西地区13个黄土剖面3000余个样品的粒度、磁化率、色度和碳酸盐进行分析及相互对比，发现它们在宏观上都比较好的记录了末次冰期气候变化的特征，但漳腊剖面记录的末次冰期气候事件最为完整。基于漳腊剖面11.5米厚的Ll地层，建立了川西高原末次冰期的气候演化过程。

Greenland ice cores and North Atlantic deep-sea sediment records reveal the high-frequency oscillation characteristics of climate change since the Late Pleistocene. This climate instability has been further confirmed by multiple geological records from regions outside the high latitudes. However, to deeply understand the formation mechanisms of these high-frequency climate oscillation cycles (Dansgaard-Oeschger, D/O) and abrupt events (Heinrich), especially their impacts and transmission pathways on the climate, environment and ecology of other regions in the Northern Hemisphere, further progress relies on searching for more high-resolution climate and environmental records globally and conducting in-depth spatial-temporal comparative analyses of these data. Current studies on loess in the western Sichuan region mainly focus on the bottom boundary age of the loess and the framework establishment of climate records from single sections, with a lack of detailed discussions on the millennial-scale characteristics of the Last Glacial Period in this area. To clarify the millennial-scale climate change features in western Sichuan and reconstruct the temporal sequence of climate evolution in the region, we analyzed and cross-compared the grain size, magnetic susceptibility, chromaticity and carbonate content of over 3,000 samples from 13 loess sections in western Sichuan. The results indicate that these sections generally well recorded the climate change characteristics of the Last Glacial Period, with the Zhangla section preserving the most complete Last Glacial climate events. Based on the 11.5-meter-thick Ll stratum of the Zhangla section, we established the climate evolution process of the Last Glacial Period in the western Sichuan Plateau.