中国铜矿预测模型与资源潜力  

Prediction model and resource potential of copper in China

作　　者：崔宁 陈建平[2,3] 向杰[2,3] CUI Ning;CHEN Jianping;XIANG Jie(MLR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, Chinese Academy of Geological Sciences Beijing 100037, China;China University of Geoscienees （ Beijing ） , Beijing 100083, China;Institute of High and New Techniques Applied to Land Resources, China University of Geosciences （ Beijing ）, Beijing 100083, China)

机构地区：[1]中国地质科学院矿产资源研究所国土资源部成矿作用与资源评价重点实验室,北京100037 [2]中国地质大学(北京),北京100083 [3]中国地质大学(北京)国土资源与高新技术研究中心,北京100083

出　　处：《地学前缘》2018年第3期13-30,共18页Earth Science Frontiers

基　　金：国家重点研发计划项目(2017YFC0601500;2017YFC0601501;2017YFC0601502);中国地质调查局地质调查项目(DD20160100;1212010633905;1212010733806;1212011121040)

摘　　要：铜矿是一种非常重要的有色金属,由于其具有良好的延展性和韧性,被广泛用作热和电的导体,此外,铜还是重要的建筑材料和各种金属合金的组成部分。随着现代工业的发展,铜的应用越来越广泛,已被广泛应用于现代机械的制造中,是一种重要的工业原材料。中国铜矿资源丰富且产量巨大,截至2015年底,中国铜矿查明资源储量为9 910.20×10~4 t,同比增长392.20×10~4 t,较"十一五"增长23.30%。该研究以矿床成矿系列等先进的成矿地质理论为指导,以Ⅲ级成矿区(带)为单位,全面总结了中国铜矿的成矿类型,综合利用物化探、自然重砂、遥感等资料所显示的地质找矿信息,应用GIS技术,实现对铜矿资源潜力的预测评价。通过该研究,全国共划分了62个铜矿成矿区带,9个铜矿预测类型,379个铜矿预测工作区,获得2 000m以浅预测资源量3.07×10~8 t。其中,以西藏的资源潜力最为巨大,其2 000m以浅预测资源量约为0.60×10~8 t,约占全国预测总量的28.50%。研究得出以下结论:中国铜矿资源丰富,区域分布广泛,相对集中,具有显著的时空分布特征,空间上受大地构造演化的控制,时间上以中—新生代为主;中国铜矿可划分为9种预测类型,其中以斑岩型和夕卡岩型在我国储量最为丰富,也是未来找矿的主要类型;铜矿预测资源量主要分布在西北地区和长江中下游地区,且深部资源潜力巨大。Copper is an important nonferrous metal-soft,malleable,and ductile with very high thermal and electrical conductivity.Copper is also an important building material and component of various metal alloys.It is widely used as raw material in modern industry such as high-speed train and machine manufacturing.China is rich in copper resources,with 99.10 Mt identified copper reserves and an yearly increase of 3.92 Mt at the end of 2015.Guided by modern metallogenic geological theory of minerogenetic series,we performed comprehensive survey of copper prediction types of level-III metallogenetic belts in China.We also completed copper resource potential assessment,utilizing geological prospecting information including geophysical,geochemical and remote sensing data,and GIS technology.Based on the metallogenetic findings,we identified 62 metallogenic belts,developed 9 copper prediction models and outlined 379 prediction areas.The total predicted copper resources were approximately 307.00 Mt to a maximum depth of 2000 min 30 provinces.Of which,59.52 Mt are in the Tibet Autonomous Region,representing nearly28.5% of China＇s potential copper resource.In summary,China＇s rich copper resource has a wide and relatively concentrated distribution with distinctive spatiotemporal characteristics-controlled spatially by the tectonic evolution while the main metallogenic epochs are the Mesozoic and Cenozoic.Among the nine copper prediction types,the porphyry and skarn types have a larger share of the copper reserves and are key prospecting types in the future.The predicting resources are concentrated in the northwest region and lowermiddle reaches of the Yangtze River with tremendous deep resources potential.

关 键 词：铜矿 成矿区带 成矿类型 预测模型 资源潜力 

分 类 号：P618.41[天文地球—矿床学]