河南省桐柏上上河金矿带断裂控矿体系及地质意义

The ore-controlling fault system and its geological significance in Shangshanghe gold belt,Tongbai County in Henan Province

以上上河金矿床为研究对象,通过野外系统地质剖面测量和开采坑道观察,初步对矿区控矿断裂特征及其与矿化关系进行了总结,确定了控矿构造的主次关系,探讨了不同类型的构造和矿化的关系。研究表明:控矿构造属右行走滑体系中R型张扭性断裂,且具有多期活动特点,成矿前构造与成矿关系密切。金矿体产出、规模严格受断裂控制,同时金矿化强度与断裂宽度呈正相关关系,且一定程度上决定其金矿类型。

Focusing on the Shang Shang He gold deposit,Through field system geological section survey and mining tunnel observation,The characteristics of ore controlling faults and their relationship with mineralization are summarized preliminarily,The primary and secondary relations of ore controlling structures are determined,and the relationship between different types of structures and mineralization is discussed.Research shows,its ore controlling structure belongs to the R type tensional twist fault in the dextral strike slip system,and has the characteristics of multi-phase activity,The pre-mineralization structure is closely related to mineralization.The gold ore body output and scale are strictly controlled by faults,meanwhile,the strength of gold mineralization is positively related to fracture width,and to a certain extent,determines the type of gold deposits.