安徽东至查册桥金矿断裂构造型式、控岩控矿和区域构造意义  

STRUCTURAL PATTERN, ROCK AND ORE CONTROL AND REGIONAL STRUCTURAL IMPLICATIONS OF THE FAULT IN THE ZHACEQIAO GOLD ORE DEPOSIT IN DONGZHI, ANHUI

作　　者：聂张星[1] 钱祥[1] 杨敬明[1] 石磊[1] 胥飞[1] 杨金龙[1] 

机构地区：[1]安徽省地质矿产勘查局311地质队,安徽安庆246003

出　　处：《安徽地质》2015年第2期99-106,共8页Geology of Anhui

基　　金：安徽省国土资源厅<安徽省东至县查册桥-西峰尖金铜多金属矿成矿条件及控矿因素研究>项目资助;项目编号2012-1-28

摘　　要：查册桥金矿是近年在安徽省东至县发现的具一定规模的金矿床,矿床的形成与燕山期强烈的构造岩浆活动有密切的时空和成因联系。我们通过金矿勘查及专题研究,对区内的主要断裂构造进行了划分,对可观测的主要断裂构造基本特征、形成与演化、相互关系及控岩控矿作用进行较系统的研究,初步认为,区内主要断裂构造在印支期前构造基础上经印支期和燕山期强烈的构造活动形成,记录了江南过渡带北缘中生代构造转换的过程;区内断裂构造具重要的控岩控矿作用,其中高坦断裂控制了东西向构造岩浆岩带,兰程畈断层带控制了北东向构造岩浆岩带,区内的矿体多受O/S界面逆冲推(滑)覆断裂、花山洋湖断层带和北东向断层带控制,并主要赋存于其断层破碎带及次级断裂构造破碎带内。同时对区内高坦断裂表现形式、形成机制、与其他构造的关系及本区和区域控岩控矿作用进行了探讨,建立了区内主要断裂的形成模型。The Zhaceqiao gold ore deposit of considerable size was found in Dongzhi County of Anhui Province in recent years. Its formation is closely related to the Yenshanian intense tectonomagmatic activities in time and space. Through gold ore exploration and special research, this paper divided major rifted structures in the area, made a systematic research into the basic features, formation and evolution, interrelation, rock and ore control of observable major faults and concluded that major faults in the area formed on the basis of pre-Indosinian structures during the Indosinian and Yenshanian intense tectonic activities, and recorded Mesozoic structural transfer process at the northern fringe of the Jiangnan transition zone; the faults in the area play an important role in rock and ore control, of which the Gaodan fault controls EW tectonomagmatic rock belt, the Lanchengfan fault controls NE tectonomagmatic rock belt, ore bodies in the area are mostly controlled by O/S boundary thrusting- nappe （sliding） fault, the Huashan-Yanghu fault zone and NE fault zone, and mainly occur in the fracture zone and the secondary. It also discussed the Gaodan fault for its form of expression, formation mechanism, relation with other structures and its regional control on rock and ore, and then established formation model for major faults in the area.

关 键 词：查册桥金矿 断裂构造 控岩控矿作用 构造演化 高坦断裂 断裂形成模型 

分 类 号：P618.51[天文地球—矿床学] P613[天文地球—地质学]