甘肃大店沟金矿控矿地质因素及成矿潜力  

Ore-controlling Geological Factors and MetallogenicPotential of the DadiangouGold Deposit,Gansu Province

作　　者：曹瑞荣 曹雪峰 艾忠林 张永哲 张少远 来召 CAO Rui-rong;CAO Xue-feng;AI Zhong-lin;ZHANG Yong-zhe;ZHANG Shao-yuan;LAI Zhao(Gansu Zhongjin Gold Mining Co.,Ltd.,Longnan 742400,China;Beijing Jinyou Geological Exploration Co.,Ltd.,Beijing 100011,China)

机构地区：[1]甘肃中金黄金矿业有限责任公司,甘肃陇南742400 [2]北京金有地质勘查有限责任公司,北京100011

出　　处：《世界有色金属》2022年第5期79-81,共3页World Nonferrous Metals

摘　　要：甘肃大店沟金矿是近年来西秦岭成矿带新发现的中型金矿,矿化类型为石英脉型和蚀变岩型。文章对控矿地质因素进行综合分析,认为矿床受地层—构造—岩浆岩联合控制形成,丹凤群地层因特殊物理化学性质提供了成矿物质和空间,北东向脆韧性剪切带为最主要控矿因素,提供了成矿热液运移、沉淀通道,印支期岩浆活动提供了热量、物质和动力。提出了主脆韧性剪切带深部和走向延伸方向、次级平行矿化带、岩浆热液多金属矿等找矿方向,并进行了成矿潜力分析。Located in the Western QinlingMetallogenic belt,the Dadiangou gold deposit is a newly discovered mediumsized gold deposit,which mineralization types are quartz vein type and altered rock type.Based on the comprehensive analysis of ore-controlling geological factors,it is considered that the deposit is formed under the joint control of stratum,structure and magmatic rock.The strata of Danfeng Group provides ore-forming materials and space due to special physical and chemical properties,As the main ore controlling factor,the NE trending brittle-ductile shear zone provides a channel for ore-forming hydrothermal migration and precipitation.magmatism in Indosinian period provides heat,material and power.In summary the deep and strike extension direction of the main brittle-ductile shear zone,the secondary parallel ore belt and magmatic hydrothermal polymetallic ore are put forward,and the metallogenic potential is analyzed.

关 键 词：大店沟金矿 脆韧性剪切带 控矿地质因素 平行矿化带 成矿潜力 

分 类 号：P618.51[天文地球—矿床学]