湖南曲溪金矿成矿规律与成矿预测

为加强湘东曲溪金矿的找矿工作，采用路线地质调查、构造填图、矿床（点）考察、岩石地球化学和遥感解译等方法，对矿区地质特征和控矿因素进行研究，总结了曲溪金矿区的成矿规律和找矿标志，建立了控矿模式，即认为含金围岩是一套冷家溪群浅变质粉砂岩；区内NNE向深大断裂是导热和成矿的通道，与深大断裂走向夹角较小的次级断裂，是矿区较好的容矿断裂；区内燕山期二长花岗岩为成矿提供了部分矿质来源。根据成矿规律和找矿标志，在矿区深部及其外围圈定了沙埚里、鸡洞坑和1号脉深部3个找矿靶区。尤其是对前人工作认为的沙埚里金锑矿点，本次工作后发现其实际为一金钨矿点，这为本区下一步找矿提供了思路。

Ore-forming Regularity and Metallogenic Prognosis of Quxi Gold Deposit in Hunan Province

In order to strengthen the Quxi gold deposit prospecting work in east Hunan Province, we used methods of directions geological survey,structual mapping,deposit （dot） investigation,petrology-geochemistry and remote sensing interpretation to study geological features and ore-controlling factors of the area,and we summarized metatlogenic regularity and prospecting of Quxi gold mine,finally established ore-controlling model.Based on the research above,we reach some conlusion as follow：the gold-bearing rock is Lengjiaxi Group which is made of weakly metamorphic siltstone.NNE trending deep faults in the area are thermal conductivity and mineralization channel,the smaller secondary fracture of it and deep fault towards angle which was the rupture of better ore in mining area.Yanshanian monzonitic granites provide some mineral sources for mineralization in Quxi gold deposit. According to the ore-forming regularity and prospecting indicators,three potential targets such as Shaguoli, Jidongkeng and the depth of No.1 lode have been determined in deep mining area and its periphmT.By our field survey and research,we think the Shaguoli previous regarded as a gold-antimony deposit,but it is a gold-tungsten deposit.The work and results supply us with next step prospecting ideas in this area.