中国钨矿成矿密度和成矿强度的定量分析

Quantitative Analysis of Metallogenic Density and Intensity of Tungsten in China

钨矿是中国的优势矿产,钨资源量、产量、出口量长期处于世界首位。研究通过对中国小型以上420余个钨矿床资料的系统梳理,定量分析了中国省、市、县级及Ⅲ级成矿区带钨矿成矿密度、成矿强度及各成矿时代钨矿的成矿强度问题。结果表明:中国钨矿集中分布于华南地区,以江西省矿床数量最多、成矿密度最大,成矿强度最强;在地级市统计中,以江西赣州市矿床数量最多,成矿密度最大,而江西景德镇市成矿强度最强;在县级统计中,以江西崇义县、大余县含钨矿床数量最多,成矿密度最大,而江西景德镇市浮梁县以成矿强度约851 t/km2名列成钨矿强度全国第一县;在成矿区带统计中,南岭成矿带(Ⅲ-83)钨矿产地数量最多,南岭东段是全国钨矿分布最密集的成矿亚带。

China has long been the leader in the world in the fields of tungsten reserve,output and export.Through systematically sorting out the data of over 420 tungsten deposits in China,we quantitatively analyzed the metallogenic density,intensity and of tungsten deposits in the various metallogenic belts in China.The results show that China tungsten ores are concentrated in Southern China,with the largest number of ore deposits in Jiangxi province.Among the various prefectures of Jiangxi,Ganzhou,in particular,the counties of Congyi and Dayu,has the largest number of ore deposits,while Jingdezhen(Fuliang county)has the strongest metallogenic intensity.In the metallogenic belt statistics,the number of tungsten deposits in the Nanling metallogenic belt(Ⅲ-83)is the largest,and the eastern section of Nanling is the most densely distributed metallogenic zone.The metallogenic belt(Ⅲ-70)of the eastern segment of the South uplift of the south of the Yangtze River is the largest,and the Yanshan period is the most important metallogenic period of China's tungsten ore,with the largest metallogenic intensity.With the progress of geological exploration,the focus of geological prospecting and mining development will move northward.