北京西山黄土剖面76ka以来样品中铀、钍、钾含量和标本含水率数据集（76ka以来）

选择工作程度比较深入的马兰黄土命名地-北京西山斋堂盆地为研究区域，开展末次冰期以来的黄土释光测年工作，试图探讨黄土释光测年的准确度和精度等问题，并构筑一个完整的末次冰期以来的黄土释光年龄序列，为高分辨率环境演化过程分析打下基础。黄土和古土壤基本为厚层状的均质体，因而黄土中矿物晶体接收的剂量主要来自周围土体的U、Th和K等放射性核素蜕变产生的α、β、γ射线辐照。根据土体中U、Th、K含量，就可以计算样品的环境辐射剂量率。水是可以减弱辐射的，因此标本中含水量的多少直接影响辐射剂量的计算。采集的样品一直埋藏在地下，长期处在当地湿度当中，而测年所需样品确是干燥样品，所以必须进行含水量的校正。

Selecting the well-studied type locality of Malan Loess—Zhaitang Basin in the Western Hills of Beijing—as the research area, we carried out optically stimulated luminescence (OSL) dating of loess deposits since the Last Glacial Period, aiming to investigate issues such as the accuracy and precision of loess OSL dating, and establish a complete OSL age sequence of loess since the Last Glacial Period, laying a foundation for high-resolution analysis of environmental evolution processes. Loess and paleosols are mostly thick-bedded homogeneous bodies, so the radiation dose received by mineral crystals in loess mainly comes from the α, β, and γ ray irradiation generated by the decay of radioactive nuclides such as U, Th, and K in the surrounding soil. The environmental radiation dose rate of the sample can be calculated based on the contents of U, Th, and K in the soil. Water can attenuate radiation, so the water content of the sample directly affects the calculation of radiation dose. The collected samples have been buried underground for a long time, remaining in the local ambient humidity, while the samples required for dating are dry specimens, so water content correction must be performed.