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分析豫北平原黄河沉积物及岩相古地理环境,对于了解区域含水层的空间分布规律、富水程度和运动过程有重要作用。它们受控于地质结构的变化及埋藏地质地貌体的分布状况,而地质结构又受控于古地理环境,研究古地理环境,就是从岩石地层学入手,依照沉积学原理进行岩相分析,对比现代地貌研究古地理环境条件,作为恢复古地理环境的基础。一、黄河沉积物岩性特征
Analysis of the Yellow River sediments and lithofacies paleogeographic environments in the Yubei Plain plays an important role in understanding the spatial distribution of regional aquifers, water richness and movement processes. They are controlled by the change of geological structure and the distribution of burial geomorphic body, and the geological structure is controlled by palaeogeomorphology. The study of palaeogeomorphology starts from lithostratigraphy and analyzes the lithofacies according to the principles of sedimentology. Modern geomorphology studies paleogeographic and environmental conditions as a basis for restoring ancient geo-environment. First, the lithological characteristics of the Yellow River sediments