Division of Quaternary geological units based on stratigraphic architecture combination: A case study in Wanjiang River Economic Zone
SU Jingwen1, GONG Jiangshi1, LI Yunhuai2, LI Yunfeng1, WANG Yi3, DONG Changchun1, YANG Yang1, YE Yonghong1, WEI Feng1, ZHU Chunfang1, WANG Rui1, CAI Lei1
1. Nanjing Geological Survey Center, China Geological Survey, Nanjing 210016, China; 2. Geological Survey of Anhui Province, Hefei 230001, China; 3. Geological Exploration Technology Institute of Jiangsu Province, Nanjing 211102, China
Abstract:In order to support the geological investigation and research of hydrological engineering environment in the areas with complicated geological conditions, the authors analyzed systematically the lithology, architecture and structure of Quaternary strata in hilly plain areas of Wanjiang River Economic Zone. Taking the geomorphology, Quaternary genesis, sedimentary facies and sediment provenance as the indexes, combined with the existing regional Quaternary research achievements and the classification of chronostratigraphy and lithostratigraphy, the authors carried out the division of Quaternary geological units in hilly plain areas along Wanjiang River. The hilly plain areas were divided into three first-level geological units, namely, alluvial-lacustrine plain geological units, flood-slope hilly geological units and residual-denuded hilly geological units. Seven types of Quaternary stratigraphic structure combinations and their characteristics are summarized. This study can lay a foundation for regional hydrogeological and engineering geological survey and research.
苏晶文, 龚建师, 李运怀, 李云峰, 王毅, 董长春, 杨洋, 叶永红, 魏峰, 朱春芳, 王睿, 蔡磊. 基于地层结构组合的第四纪地质单元划分研究——以皖江经济带沿江丘陵平原区为例[J]. 中国地质调查, 2019, 6(5): 28-35.
SU Jingwen, GONG Jiangshi, LI Yunhuai, LI Yunfeng, WANG Yi, DONG Changchun, YANG Yang, YE Yonghong, WEI Feng, ZHU Chunfang, WANG Rui, CAI Lei. Division of Quaternary geological units based on stratigraphic architecture combination: A case study in Wanjiang River Economic Zone. , 2019, 6(5): 28-35.