吉林红旗岭矿区1号岩体群地质特征及对区域找矿的指导意义

红旗岭矿区分布几十个基性—超基性岩体,1号岩体是矿区最早发现的含矿岩体,由1上和1下岩体构成,在2006年国家危机矿山资源潜力勘探调查中,在39号勘探线深部发现一个主体岩相为橄榄辉岩的小岩体。经分析,确认1号岩体实质是由1上、1下及F1断层上盘两个小盲岩体组成的岩体群。通过利用3Dmine矿业软件,对所有岩体、主体岩相、矿体建立三维模型,对全部三维模型进行组合观测分析,结合1号岩体地质成岩成矿理论,初步认为1上岩体32～34号勘探线区域存在岩浆通道,这一发现证实了铜镍硫化物岩浆矿床深部熔离充填贯入的成岩成矿的理论,对红旗岭矿区深部找矿具有一定的指导意义。

Geological characteristics of No. 1st Rock-mass group and its significance for regional prospecting in Hongqiling orefield of Jilin Province

There are dozens of mafic-ultramafic rock masses distributed in Hongqiling orefield area. The No. 1th rock mass is the first ore-bearing rock body found in the mining area, consisting of the No.1th upper and No.1th lower rock masses. In 2006 in program of National Exploration Survey on resource potentials of crisis mines,it was found that the No. 1th rock mass is a group of rock mass composed of the No.1th upper and No.1th lower as well as two small blind rock masses on the plate of F1 fault. Three-dimensional models has been established for all rock masses, main lithofacies, and ore bodies, by utilizing 3Dmine software, and comprehensive analysis are carried out for all the 3D models. After analysis and delineation, and by combining geological diagenesis of No. 1th rock mass, combined it is thought that there are a magmatic channels of the No.1th upper rock mass in the area of exploration line 32-34. This finding confirms the theory of diagenesis and mineralization in deep melting of Cu-Ni sulfide magma deposit. It has a certain significance of guidance for the deep part of Hongqiling mining area.