广西那坡马刚金矿床地质特征及找矿方向

摘要

广西马刚金矿床位于那坡褶皱带坡笨背斜的南东倾伏端。矿体受断裂构造的控制，产出与断裂构造、特定岩性、不整合界面有关，主要以含金破碎带型金矿体形式产出，赋存于矿区内 NW向的断裂构造带中，少数产于辉绿岩与围岩的接触带内。结合矿床的地质特征及成因，总结了矿区内矿体的成矿规律，且指出了今后的找矿方向。%Magang gold deposit of Guangxi is located at the southeast of plunging crown of Poben anticline of Napo fold belt.The orebodies are controlled by the fracture structure,and its occurrence is related to the fracture structure,the peculiar petrography and the unconformity interface.The orebodies occur predomi-nantly in NW-trending fracture structure zone of the mining area and subordinately in the contact zone be-tween diabase and wall rocks as gold-bearing fracture zone type in form.Combined with the geological char-acteristics and genesis of the deposit,this paper summarized the metallogenic regularity of the orebodies in mining area and provided direction for the prospecting works in the future.