陕西寺沟铅锌矿与背斜的关系

The Relationship Between Sigou Lead-Zinc Deposit and the Anticline in Shaanxi

寺沟-银洞梁背斜南翼有两个次级小背斜,而南枝次级紧闭狭窄小背斜为控矿背斜,寺沟铅锌矿就产在南枝次级紧闭狭窄小背斜的南翼,矿体的侧伏向与背斜的侧伏向完全相同,但侧伏角并不相同,背斜的侧伏角26°,矿体的侧伏角32°,故矿体越向东越接近背斜鞍部及侧伏端,形态多为弯曲的板状,越向西越距背斜鞍部及侧伏端越远,形态多呈规则板状,深部找矿一定要充分注意到这一点。

There are two small sub-anticlines in south wing of Sigou-Yindongliang anticline, and one of them, the southern narrow closed small sub-anticline is the ore-controlling anticline. The Sigou Lead-Zinc deposit are located in the south wing of it. Both rake directions of ore body and anticline are the same, but the pitches are different, with the anticline pitch an- gle is 26° and the ore body pitch angle is 32°. So the ore body is closer to the east, and closer to the saddle and rake end of anticline, with the shape of bent plate. The more to the western of the ore body , the farther away from the saddle and the rake end of anticline, with the shape of regular plate. Deep prospecting must be fully aware of this point.