关键词: 缓倾斜金矿体, 矿体特征, 矿化蚀变, 地质意义, 隐伏矿体

Abstract: Through the detailed observation and study of the gently dipping gold orebody (M#1－Ⅰorebody ) in the pit excavation project in Huaishuping mining area in Henan Province, it is found that the orebody is damaged by the tectonic movement after the formation,its morphological characteristics can be summarized as following:①in the orebody profile,the orebody is distributed as generally slow－waved thin veins,it is broken by several small faults,although the fault interval is small,the continuity of gold orebody in the strike and inclination is destroyed;②pyrite mineralization is a metal mineralization that is closely related to gold orebody in mineralization alteration,silicification and potassiumization are the main alteration alternation types that are closely related to gold orebody and high in intensity;③the gold orebody is characterized by relatively low resistivity and high intensification in physical properties,while quartz veins closely accompanying them show the characteristics of high resistivity and low intensification.Based on the above discussion results,the further study resutls show that the prospecting effects can be improved by utilizing the significant difference between the resistivity and polarizability of gold orebody and quartz vein to find the hidden orebody and tracing the faulty orebody in the process of development and utilization.

Key words: Gently dipping gold orebody, Orebody characteristics, Mineralization alteration, Geological Significance, Concealed orebody