摘要
我国钨矿资源丰富,钨矿类型比较齐全。占有钨矿资源储量较大比重的主要是矽卡岩型和石英脉型,但从开采和利用的角度来说,最为重要的是石英脉型的黑钨矿矿床。矽卡岩型钨矿集中分布在南岭中段湘南、东秦岭等矿集区,石英脉型则主要集中在华南地区的闽西、赣南、粤北、湘南等地;成矿时代以中生代最为重要;成矿大地构造背景以造山运动之后的陆内环境为主但构造变动剧烈,深大断裂纵横交错,岩浆活动频繁,与钨锡成矿作用密切相关的中生代花岗岩类至关重要,是成矿的关键要素。本次在对全国1199处钨矿矿产地资料系统梳理的基础上,深入总结了全国钨矿的成矿规律,厘定出22个以钨为特点或明显涉及钨的矿床成矿系列,认为矽卡岩(一云英岩型)、石英脉型和岩体型3个钨矿预测类型应该作为重点预测类型,划分出65个成钨带并编制了中国成钨带分布图,圈定出22个重要矿集区,为本次潜力评价预测工作提供了理论依据。
Tungsten mineral resources are abundant with relatively complete types of deposits,including the larger tungsten reservers of skarn-type and quartz vein-type,and the most important wolframite-quartz vein type in terms of exploitation and utilization.The skarn-type tungsten deposits centralize in central Nanling region such as south Hunan Province,while quartz vein-type tungsten depostis are concentrated in South China.The most important metallogenic age of tungsten is Mesozoic,while the metallogenic tectonic setting is featured by intra continental environment after orogeny with severe tectonic movements,deep-seated faults and frequent magmatic activities,especially Mesozoic granitoids closely to tungsten-tin mineralization.Besides,22 metallogenic series of ore deposits significantly related with tungsten have been defined,based on statistics precise information system of 1199 tungsten mining areas and thorough summary of metallogenic regularity.On the studies of metallogenic regularity of tungsten deposits,the skarn-type （or greisen type）,quartz vein-type and massif-type of tungsten deposits are thought to be key prediction types,65 tungsten-forming belts and 22 key ore concentration areas displayed in the distribution map of tungsten-forming belts are devided in China.Generally,the whole work provides theoretical basis for the potential evaluation.
出处
《地质学报》
EI
CAS
CSCD
北大核心
2015年第6期1038-1050,共13页
Acta Geologica Sinica
基金
"中国分矿种(组)矿产地质总结研究(编号12120114039601)"
"中国矿产地质与区域成矿规律综合研究(中国矿产地质志)项目(编号1212011220369)"
"全国重要矿产区域成矿规律研究项目(编号1212011121037)"等资助的成果
关键词
钨矿
资源特征
钨矿类型
成钨带
成矿规律
tungsten
resources characteristics
types of tungsten deposits
tungsten-forming belts
metallogenic regularity
