图1. 董家埝银矿矿区地质简图(据文献[23]修改)
1—第四系;2—寒武系;3—震旦系;4—冯家湾组;5—杜关组;6—巡检司组;7—龙家园组;8—高山河组;9—新太古界太华群片麻岩;10—小河岩体;11—桂家峪岩体;12—地质界线;13—向斜构造;14—背形构造;15—断层及产状;16—碎裂岩带;17—金矿床;18—铅银矿床;19—城镇;20—研究区范围;①—孟家村-民湾向斜;②—七树坪向斜;③—老鸦岔背形;④—庙沟向斜;⑤—上杨砦背形

Fig.1. Geological map of Dongjianian silver deposit(modified according to reference [23])
1—Quaternary system;2—Cambrian system;3—Sinian system;4—Fengjiawan formation;5—Duguan formation;6—Xunjiansi formation;7—Longjiayuan formation;8—Gaoshanhe formation;9—Neoarchean Taihua group gneiss;10—Xiaohe rock mass;11—Guijiayu rock mass;12—geological boundary;13—syncline structure;14—back structure;15—fault and occurrence;16—cataclastic rock zone;17—gold deposits;18—lead-silver deposit;19—towns;20—study area;①—Mengjiacun-Minwan syncline;②—Qishuping syncline;③—Laoyacha back shape;④—Miaogou syncline;⑤—Shangyangzhai back shape