内蒙古科右前旗三合屯银多金属矿 成矿规律与矿床成因

结合内蒙古科右前旗三合屯矿区地质工作成果，详细分析了区域成矿地质背景，重点对矿区地层、岩浆活动、构造、化探异常特征进行了阐述。结合锡多金属、银多金属矿体矿化特征，综合分析认为区内矿床成矿类型为与岩浆作用有关的热液型矿床，成矿过程受构造及侵入岩控制。在上述分析的基础上，进一步讨论了矿区找矿方向，认为花岗岩与二叠系地层的接触带且与断裂构造的叠加部位为成矿有利部位，深部找矿潜力大。

Metallogenic Regularity and Deposit Genesis of Sanhetun Ag-polymetallic Mine of Horqin Right Front Banner,Inner Mongolia

Combing with the geological prospecting resutls of Sanhetun mining area of Horqin Right Front Banner in Inner Mongolia,the regional metallogenic geological background is discussed,the characteristics of strata,magmatic activity,structures and geochemical anomalies of the mining area are analyzed emphatically.Baed on the mineralization characteristics of Sn-polymetallic and Ag-polymetallic orebodies of the mining area,the comprehensive analysis indicated that the metallogenic type of the deposit is hydrothermal deposit associated with magmatism,metallogenic process is controlled by tectonics and intrusive rocks.Based on the above discussion results,the prospecting directions of the mining area is analyzed,it is show that the favorable metallogenic part is the contact zone of granite and Permian strata,especially for the location where the contace zone overlaps with the fracture structures,which deep prospecting potential is large.