【摘要】 义县金矿是我国新发现的一个金矿床,矿床规模较大,品位高,矿石成分简单,易采易选。矿床受地层、断裂、岩脉活动等因素影响,并有多源特证。更多还原

【Abstract】 The Yixian gold deposit is a new one discovered ia China.The scale of the deposit is larger.Its ore grade is higher and its ore composition is simple.It is easy to mine and to select.The deposit is affected by the activities of the strata, faults, magma and so on. It is of the polygenic features.更多还原