安源锡砷鑛区位於彬县西南120余里安源村的东南,面积约十数平方面,大都是棲霞马平石灰岩和乐平煤系的岩层,形成一向南倾斜的背斜地层,走向大致是北北东,南南西,北部有花岗岩体露出。岩层受花岗岩侵入的影响,靠近花岗岩的变质最剧烈,产生接触变质鑛物很多,像钙铝石,榴子石和矽灰石等。区内石灰岩已变成大理石。再 Anyuan tin-arsenic mine is located in the southeastern 120 yuan Anyuan Village southwest of Binxian, covering an area of ​​about ten square meters, mostly of the Qixia Maping limestone and Leping coal strata, forming a southward inclined anticline stratum, North-east, south-west, north of granite body exposed. The rock is affected by the intrusion of granite. The metamorphic rocks near the granite are most violent, resulting in many contact metamorphic minerals such as mayenite, garnet and silicate stone. Limestone area has become marble. again