吉林红旗岭铜镍矿床的地质特征及成因  

STUDY ON THE METALLOGENIC FEATURE AND ORE GENESIS OF HONGQILING COPPER-NICKEL DEPOSIT,JILIN PROVINCE

作　　者：董耀松[1] 范继璋[1] 杨言辰[2] 孙德有[2] 

机构地区：[1]吉林大学综合信息矿产预测研究所,吉林长春130026 [2]吉林大学地球科学学院,吉林长春130061

出　　处：《现代地质》2004年第2期197-202,共6页Geoscience

基　　金：原地质矿产部定向基金项目 (直科定 96-0 7)

摘　　要：红旗岭铜镍矿床地处华北地台和吉黑地槽系接触带———辉发河断裂带内 ,属大型铜镍硫化物矿床。矿区出露地层为下元古界呼兰群变质岩系。呈北东向展布的辉发河断裂具有切割深度大、继承性活动频繁等特征 ,由该断裂构造活动派生的北西向构造构成区域性重要的控岩控矿构造 ,控制超镁铁、镁铁质岩体及铜镍硫化物矿体在空间上呈北西向产出。与铜镍矿成矿有关的岩体具有复合杂岩体特征 ,多属辉长岩—辉石岩—橄榄岩型镁铁—超镁铁质岩。铜镍矿体呈似板状、脉状、透镜状及囊状等赋存于镁铁—超镁铁质岩体内。岩矿石微量元素特征、稀土元素地球化学特征均反映其为地幔部分熔融作用的产物 ,且矿石与镁铁—超镁铁质岩具同源性 。Copper-nickel deposit of Hongqiling is located in Huifahe fault which is contacting zone of North China platform and Jihei geosyncline, it is a large scale deposit. In mineral area, the stratum which is crop out is Hulan group's metamorphic rocks. Huifahe fault is characteristic of cutting deeply and frequent inheriting activity, its stretch is northeast.The northwest faults are derived from Huifahe fault, they are important the structure of controlling-rock and controlling-ore, controlled the distribution of mafic ,ultramafic rocks and ore-body of copper-nickel sulfide.The rock-body which have the relation of mtallogenic of copper-nickel ore have the characteristic of compound rock-body. They belong to mafic ,ultramafic rocks which type are gabbro, pyroxenite and peridotite. The ore-bodys of copper-nickel are seated in mafic,ultramafic rocks, the shape are similar slaty, nervation, lentiform and cystiform. The characteristic of microelement and REE geochemical have proved the ore-bodys come from mantle liquation. Mine and mafic,ultramafic rocks have consanguinity.The authors ascertained the genesis of ore deposits are deep magmatic and differentiation.

关 键 词：成矿特征 地球化学特征 矿床成因 红旗岭铜镍矿床 

分 类 号：P618[天文地球—矿床学]