山东蓬莱西石硼金矿地质特征及找矿方向

Geological Characteristics and Ore Prospecting Direction of Xishipeng Gold Deposit in Penglai City of Shandong Province

摘要:

西石硼金矿位于栖霞蓬莱金成矿带，成因类型为岩浆期后热液型金矿床。矿体受NNE—NE向断裂严格控制，赋矿围岩为郭家岭二长花岗岩，矿体呈脉状、透镜状产出。矿石为黄铁绢英岩化花岗质碎裂岩夹石英脉，矿石矿物主要为黄铁矿、银金矿、自然金等。通过对该矿床地质特征、控矿因素的研究，在分析找矿标志的基础上，提出应加大深部找矿的建议。

Abstract:

Xishipeng gold deposit is located at the QixiaPenglai metallogenic belt. It is a postmagmatic hydrothermal deposit. The ore bodies occur as veins or lenses and are controlled by NNE—NE trending fractures and faults. The host rock of the ore bodies is Guojialing monzonite granite. Ores are mainly composed of granitic cataclastic rocks, which underwent beresitization alteration with minor quartz veins. The ore minerals include pyrite, electrum and native gold. For further deposit prospecting, geological characteristics and orecontrolling factors of Xishipeng gold deposit have been studied in the paper. Based on analyzing the criteria for ore prospecting, it is suggested that favorable prospecting potential can be expected in the deep part.