湘东北曲溪矿区花岗岩中钼矿化的发现及其找矿意义

曲溪金矿位于湘东北黄金洞金矿田中,矿田内发现了大量的多金属矿床,但Mo矿化的发现还鲜有报道。笔者在曲溪金矿床调研花岗岩体时,从岩浆岩的矿物特征、稀土元素分配、化探多元素含量等方面进行了较为系统的研究,从多元素含量分析结果发现该花岗岩体内、外部构造带上都有较好的Mo矿化,通过进一步在岩体内、外接触构造带进行化学分析取样查证,发现岩体内部构造带Mo矿化可达工业品位,外接触带构造中也有较好的Mo矿化。通过这种发现认为,黄金洞金矿田中类似小型花岗岩体较多,加强其Au、Mo多金属矿化研究,将为矿田在Au、Mo多金属找矿上取得突破。

Discovery of Molybdenum Mineralization in the Quxi Mine Granite of Northeast Hunan and Its Prospecting Significance

The Quxi gold deposit is located in Huangjindong gold field in northeastern Hunan .A large number of multi-met-al deposits had been found in the orefield , but the Mo mineralization was rarely reported .By using the methods alike , sys-tematic study on the granite of Quxi gold depositthe from aspects of mineral characteristics of magmatic rocks , distributing of REE, geochemical multi-element content was carried out .The results of multi-element content showed that there exited bet-ter Mo mineralization in the inner and external structural belts of granite .By further study on inner and external structural belts of orebody in the way of chemical analysis of samples , it was found that the content of Mo mineralization reached to in-dustrial-grade.There are also better Mo mineralization in outer contact zone structure .According to the discoveries above , plus the facts of many small scale similar granite in Huangjindong gold field , it is obvious that enhanced research of Au , Mo multi-metalization would lead a breakthrough on Au , Mo poly-metals prospecting .