河南马超营断裂带中段构造解析与成矿意义  

Studies on the Middle Structural and Metallogenic Significance of the Machaoying Fault Zone,Henan Province

作　　者：刘世华[1] 杨可[1] 

机构地区：[1]武警黄金第六支队,河南三门峡472000

出　　处：《黄金科学技术》2011年第5期19-24,共6页Gold Science and Technology

摘　　要：通过对马超营断裂带的几何样式、组成特征及其变形特点等进行研究,识别出马超营断裂带至少经历了韧性逆冲推覆和脆性断裂两期活动,韧性变形早于脆性断裂。其中,脆性断裂与矿床成因具有密切联系。马超营脆性断裂直接控制了金(钼)矿床的产出和矿体形态,含矿热液沿主断层带上升,形成区域性的导矿构造,其中,受主断裂带控制的次级断裂及岩石破碎微裂隙都是良好的容矿构造。Based on the studies of the geometric style,assemblage and deformation characteristics of the Machaoying fault zone,we revealed that the fault has undergone at least two deformation stages：ductile thrusting and brittle faulting.The brittle fracture,which took place later than the ductile deformation,closely related to the ore genesis,gold molybdenum deposits were directly controlled by the brittle fracture of Machaoying fault.The ore veins were mainly hosted in shear zones and extensional structures.The ore-bearing hydrothermal fluids ascended along the main fault zone and the fault was regional ore-controlling structure.The varieties of secondary faults and rock micro-fractured cracks were both good ore-hosting structure.

关 键 词：韧性变形 脆性断裂 马超营断裂 石瑶沟钼矿床 河南省 

分 类 号：P618.51[天文地球—矿床学]