摘要
夹皮沟金矿带是中生代构造－ 岩浆－ 成矿作用的产物，矿脉直接受脆性断裂控制，控矿构造类型分为空间方位型（ＮＥ－ ＮＮＥ、ＮＷ 和Ｓ－ Ｎ 向三种） 和外接触带断裂型（ 矿区深部存在隐伏岩体） 。矿脉斜列性特征揭示出夹皮沟金矿带与石棚沟—金城洞金矿带为低序次与高序次关系。通过最佳控矿部位的确定和成矿演化过程，建立多字型、“Ｓ”型和人字型等控矿构造演化模式。成矿预测可按地质力学构造体系压、张、扭配套进行。
Jiapigou gold deposit belt is the product of the mesozoic tectonomagmatic mineralization.The ore rein is controlled directly by brittle fault.The ore controlling structure is divided into space orientation type(including three directions,i.e. NE-NNE,NW,S-N)and external contact zone fault type (the concealed rock mass exist in the deep of ore area).The character of slanting range of ore rein reveals that the relation between Jiapigou gold deposit belt and Shipenggou Jinchengdong gold deposit belt is low sequence to high sequence.Through determining of optimal ore controlling position and process of minerogenetic evolution,the evolutionary models of 多-shaped type ,S-shaped type and 人-shaped type of ore controlling structure are established.The metallagenic prognosis can be made based on compressive stress,tensile stress and shear stress of geomechanics tectionic system.
出处
《黄金》
CAS
北大核心
1999年第11期4-8,共5页
Gold
基金
国土资源部变质动力开放实验室资助
关键词
金矿带
控矿构造
演化模式
金矿床
gold deposit belt
ore controlling structure
evolutionary model
Jiapigou of Jilin
