中国地质调查局: 浙江省乌镇幅(H51E008002)1∶50 000地质图数据库

浙江乌镇幅（H51E008002）1∶50 000区域地质图数据库综合采用遥感解译、槽型钻揭露、地质钻探和物探等多种调查手段，查明了主干断裂的第四纪活动性，详细总结了各地层单位岩性组合特征和时空分布规律，恢复了工作区第四纪以来气候特征及海平面变化特征，将末次冰期以来古地理古环境、海平面变化曲线重建与杭嘉湖平原古人类遗迹分布及迁徙特征相结合，探讨末次冰期以来海平面变化对古人类活动及迁移的影响。图幅数据库包含5个地层单元、10个钻孔，数据量约为 293 MB，涵盖了浅表沉积物属性特征及第四纪松散层、隐伏基岩及断裂构造等多方面的综合信息，充分反映了杭嘉湖平原第四纪沉积基底特征、地层结构及沉积环境演化特征，丰富了长江三角洲第四纪研究内容，为区域工程地质、水文地质调查提供了基础地质支撑。

The 1:50,000 regional geological map database of the Wuzhen sheet (H51E008002), Zhejiang Province, integrated multiple survey methods including remote sensing interpretation, trench drilling exposure, geological drilling and geophysical exploration. Through these means, the Quaternary activity of major faults was ascertained; the lithologic association characteristics and spatio-temporal distribution rules of each stratigraphic unit were summarized in detail; the climatic characteristics and sea level change characteristics of the study area since the Quaternary were reconstructed. The database combines the reconstruction of paleogeographic and paleoenvironmental changes and sea level change curves since the Last Glacial Period with the distribution and migration characteristics of ancient human relics in the Hangjiahu Plain, and discusses the impact of sea level changes since the Last Glacial Period on ancient human activities and migrations. The map sheet database contains 5 stratigraphic units and 10 boreholes, with a total data volume of approximately 293 MB. It covers comprehensive information on multiple aspects including the attribute characteristics of superficial sediments, Quaternary loose deposits, buried bedrock and fault structures. This database fully reflects the Quaternary sedimentary basement characteristics, stratigraphic structure and sedimentary environment evolution characteristics of the Hangjiahu Plain, enriches the Quaternary research content of the Yangtze River Delta, and provides basic geological support for regional engineering geological and hydrogeological surveys.