论述了冀西北山间盆地区黄土钙质结核的个体特征及群体分布特点，结合地层的时代划分，总结了钙质结核的地层学意义：中更新统结核个体大，外形多呈块状，内部以均质结构为主，在剖面中常密集成层分布；上更新统结核个体较小，多呈姜状或球状，同心结构居多，分布较稀疏。根据钙质结核在盆地内的空间分布，提出形成钙核的ＣａＣＯ３成分部分可能来自于盆地边缘基岩区，按照结晶动力学原理对钙核的形成过程进行了分析，并在此基础上，对不同特征钙质结核的形成环境进行了讨论。 This paper discusses the individual characteristics and population distribution characteristics of loess calcareous tuberculosis in the basin of the northwestern Hebei Province. Combining with the epoch of the strata, the stratigraphic significance of calcareous tuberculosis is summarized. The middle Pleistocene tuberculosis is large in size and massive in appearance, The homogenized structures are mainly distributed in the dense layers in the profile. The upper Pleistocene tuberculoma is smaller, mostly ginger-like or globose, with the most concentric structure and sparse distribution. According to the spatial distribution of calcareous nodules in the basin, it is proposed that the CaCO3 component of calcareous nuclei may come from the bedrock zone of the basin margin, and the formation process of calcium nuclei is analyzed according to the principle of crystallization kinetics. On the basis of this, The formation of different characteristics of calcified tuberculosis is discussed.