江西宜丰高岭测区土壤地球化学异常特征及找矿潜力

Soil Geochemical Anomalies Characteristics and Prospecting Potential in Gaoling Area of Yifeng,Jiangxi

高岭测区位于江南东段成矿带之九岭钨钼锡铜金多金属萤石高岭土成矿亚带的宜丰—奉新铌钽锂稀有金属矿田内,成矿地质条件良好。该地区主要发育Ta、Nb、Li、Rb、Cs等稀有金属矿化,早白垩世白水洞岩体为陶瓷土(含锂)矿成矿母岩,中细粒白云母花岗岩即为陶瓷土(含锂)矿体。1∶10000土壤地球化学测量结果显示,Li为主成矿元素,具明显浓集趋势,共圈定综合异常5处,具备一定成矿潜力。通过异常查证及探矿工程揭露,认为高岭测区中深部及综合异常浓集中心具良好的陶瓷土(含锂)矿找矿潜力,为该地区下一步地质找矿及邻区地质勘查工作部署提供科学依据。

The Gaoling area which is located in the Yifeng-Fengxin Nb-Ta-Li rare metal ore field in the Jiuling W-Mo-Sn-Cu-Au polymetallic fluorite-kaolinite metallogenic subzone of the Jiuling W-Mo-Sn-Cu-Au polymetallic fluorite-kaolinite metallogenic subzone of the eastern Jiangnan metallogenic belt has a promising metallogenic geological conditions.The mineralization of this area mainly are rare metal mineralization such as Ta,Nb,Li,Rb and Cs.The early Cretaceous Baishuidong rock mass is the parent rock of lithium-bearing ceramic clay ore,and the medium-fine grained muscovite granite is the lithium-bearing ceramic clay ore body.The results of 1∶10000 soil geochemical survey show that Li is the main ore-forming element,with obvious concentration trend and certain metallogenic potential.A total of 5 comprehensive anomalies are delineated.Through anomaly verification and prospecting engineering exposure,it is considered that the deep and comprehensive anomaly concentration centers in the Gaoling survey area have good prospecting potential for lithium-bearing ceramic clay ore,which provides a scientific basis for the future geological prospecting in the area and the deployment of geological exploration work in adjacent area.