甘肃北山前红泉金矿床绢云母40Ar-39Ar年龄及其地质意义

丁书宏

40Ar-39Ar Age of Sericite and Its Geological Significance in Qianhongquan Gold Deposit， Beishan Area，Gansu Province

Shuhong DING

图4 前红泉金矿床矿石宏观及微观特征 （a）含金蚀变带；（b）蚀变岩型金矿石；（c）石英脉型金矿石；（d）~（f）千枚状板岩镜下特征（正交偏光）；（g）~（i）金矿石镜下特征（单偏光）；Au-自然金；Py-黄铁矿；Po-磁黄铁矿；Ccp-黄铜矿；Cov-铜蓝；Ser-绢云母；Q-石英

Fig.4 Macroscopic and microscopic characteristics of ore in Qianhongquan gold deposit