广东茶洞银金矿区成矿地质特征与找矿潜力分析

摘要

Chadong silver-gold field occurs at the intersection of the northernmost of Wuchuang-Sihui NE trending main fault zone and the Guizi-Tashi WE trending arcuate fault zone,of which the fault and the secondary fault controls the gold distribution.Chadong silver-gold field is the very profitable tectonic metallogentic field with the advantageous conditions whose structural is relatively well developed.The survey resumed the relationship between the geologic features,remote sensing geological interpretation and the mineral vein which mainly combined the geological exploration results of Chadong silver gold field.Resulted from the analysis of the ore-controlling factors and the summary of the metallogenic regularity and the main ore-controlling factors,the result had been gotten that: There is a close relationship between the faulted structure and the vein.The faulted structure is the main factor of which controls the size of ore bodies,the occurrence and the morphology.Besides it also creates a good space for the activity of the ore solution and filling.And the 36 vein is possibly to extending to the southwest, which is worth recourse strengthening of the surface to the south.Investigation of the NE-NNE veins should been strengthened to finding new veins as the close relationship between the faulted structure and the vein.This area is expected to find large silver gold polymetallic deposit.By analyzing the ore potential,puts forward suggestions on the nest step prospecting direction.%茶洞矿区位于NE向吴川-四会大断裂北端与EW向贵子-挞石弧形断裂带的交会部位，断裂带及断裂带内的次级断裂控制着区内的金矿分布，是区域上非常有利的构造成矿部位，成矿条件优越。区内构造较为发育，结合该区地质勘查成果，简述了矿区的地质特征及遥感解译构造与矿脉的关系，通过分析控矿因素，总结矿床的成矿规律和主要控矿因素，认为断裂与成矿关系最为密切，断裂是控制矿体规模、产状和形态的主要因素，并为含矿溶液的活动和充填创造了良好的空间场所。从找矿方向来看，36号脉向南西延伸的可能性较大，建议向南加强地表追索；矿区NE-NNE向断裂与成矿关系密切，应加强NE-NNE向矿脉的调查工作，寻找新的矿脉。区内有望找到大-中型规模的银金多金属矿床，需要加强对区域成矿地质特征的研究力度，优选找矿靶区开展预查工作。