论文部分内容阅读
九子沟磷矿床位于秦岭东西向复杂构造带与祁、吕、贺“山”字型构造前弧的复合部位。属产于黑云母透辉石岩中的大型低品位磷灰石矿床,现正进行初步勘探。为了总结经验,据已获资料,对此类型矿床的地质特征仅作初步讨论。不当之处,请批评指正。一、矿区地质概况矿区出露地层为震旦纪(?)油房沟组的黑云母斜长片麻岩及白云质大理岩及寒武纪(?)上店房组的云母石英片岩和变粒岩以及奥陶纪红花铺组火山岩、火山碎屑沉
The Jiuzugou phosphate deposit is located in the complex part of the Qinling ancient and western structural complex belt and Qi arc, Lu and He mountain formations. It is a large low-grade apatite deposit produced in biotite diopside and is under preliminary exploration. In order to summarize the experience, according to the data already obtained, only preliminary discussion on the geological characteristics of this type of deposit. Improper, please criticize correction. I. Geological Profile of the Mining Area The outcropped strata in the mining area are biotite plagioclase gneiss and dolomitic marble in the Youfangou Formation of the Sinian (?) And mica-quartz schist of the Shangfangang Formation on the Cambrian (?) Granitoids and Ordovician safflower Pu volcanic rocks, volcanic clastic Shen