The Geological Characteristics And Prospecting Prognosis Of The Chengde County,Hebei Province

The Chengde County of Hebei Province is located in the Qianxi-Nuku River and the Yanshan Rift Complex of the Jin-Ji Block in the North China Block.Since the Mesozoic-Cenozoic,the tectonic evolution of the Chengde area is influenced by both the Tethyan tectonic domain and the Pacific-Domain control,has experienced multiple stages of tectonic thermal events,complex geological structure,concentrated production of polymetallic mineralization.Based on the geological data of Chengde County,this paper systematically collected,sorted out and analyzed the geological data of Chengde County.Based on the field geological survey and the methods of petrology,geochemistry,geophysics and.The regional geological characteristics and the typical mine point of the comprehensive study and analysis,summed up the following conclusions.That are the Mesoproterozoic Chuanlinggou Formation,Tieling Formation and Xiamaling Formation in the study area have direct control over sedimentary deposits in the study area and Sedimentation and Sedimentation of Jurassic Xiahuayuan Formation have direct control on Formation of(Non)Bituminous coal mines.Sedimentary deposits are mainly layered and lenticular distribution in the formation,and the rock was integrated contact.The Early Cretaceous rocks and the diabase veins which are closely related to the Xiamaling Formation are favorable hydrothermal ore-forming areas.The Early Cretaceous rocks and the diabase veins which are closely related to the Xiamaling Formation are favorable hydrothermal ore-forming areas.The original halo and the secondary halo reflect abnormal anomalies,good anomaly combination,and good combination with geological characteristics,and have good prospects for prospecting The Mesozoic tectonics are important magmatic and mineral migration channels and ore-hosting spaces.The near-east-west fold-fault structure and the north-east and northwest-trending fault structures have great influence on gold,silver,copper,lead and zinc mineralization.The spatial distribution of points has definite control effect.Based on the comprehensive analysis of geological conditions,two metallogenic targets of Yangshuwa silver-lead-zinc polymetallic ore prospecting target and Zhaojiazhuang-Gaojiazhuang copper-lead-zinc polymetallic ore prospecting target are divided,Dagong-Rongjiagou-Beijianggen deposit iron ore prospecting area,Dadonggou-Rongjiazhuang-Gaojiazhuang gold,silver,copper polymetallic ore prospecting prospecting area two prospecting area.