图2. 董家埝银矿床M₁-Ⅰ主矿体平面示意
1—第四系;2—官道口群龙家园组;3—官道口群高山河组;4—太古宇太华群;5—小河二长花岗岩;6—闪长岩脉;7—地质界线;8—实测及推测的构造蚀变带;9—实测及推测的断层;10—银矿体位置及编号;11—勘探线及编号;12—见矿化钻孔;13—见矿钻孔;14—探槽或钻孔控制的主矿体品位及厚度;15—探槽及编号;16—取样范围

Fig.2. Sketch plan view of M₁-Ⅰ major orebody of the Dongjianian silver deposit
1—Quaternary system;2—Longjiayuan formation of Guandaokou group;3—Gaoshanhe formation of Guandaokou group;4—Archaeozoic Taihua group;5—monzogranite of Xiaohe rock;6—diorite vein;7—geological boundary;8—measured or inferred tectonic altered belt;9—measured or inferred fault;10—silver orebody and its serial number;11—exploration line and its serial number;12—drill hole intersecting mineralization body;13—drill hole intersecting orebody;14—grade and thickness of major orebody controlled by exploratory trench or drill hole;15—exploratory trench and its serial number;16—sampling range