东昆仑驼路沟矿床中钴成矿过程的矿物学示踪

王智琳,张凯,许德如,邹少浩,王宇非

Mineralogical Fingerprints of Co Metallogenesis in the Tuolugou Deposit，East Kunlun Orogen

Zhilin WANG,Kai ZHANG,Deru XU,Shaohao ZOU,Yufei WANG

图4 驼路沟矿床南、北矿带典型矿石和围岩蚀变矿化特征 （a）南矿带短沟钴矿体产状较陡，围岩为石英钠长岩和绿泥石千枚岩；（b）南矿带黄铁矿化的石英钠长岩；（c）细粒黄铁矿呈浸染状分布在条带状石英钠长岩中；（d）糜棱岩化的钴矿石；（e）北矿带破碎带中的含钴镜铁矿矿体；（f）北矿带镜铁矿矿石，可见片状镜铁矿呈揉皱状胶结含浸染状黄铁矿的变石英砂岩角砾；（g）北矿带镜铁矿脉切穿含钴变石英砂岩；（h）硅化和菱铁矿化含自然金矿石；Py-黄铁矿；Qtz-石英；Spc-镜铁矿；Ab-钠长石；Sd-菱铁矿

Fig.4 Features of ores and alteration mineralization of surrounding rock from the southern and northern ore belts in the Tuolugou deposit