摘要
祁漫塔格地处东昆仑造山带西段,该区建造组成丰富,断裂构造发育,断层构造以北西西走向为主,华力西-印支造山旋回中酸性侵入岩浆活动强烈。在综述祁漫塔格地区成矿地质背景基础上,通过对区内肯德可克铁钴铋金矿床、野马泉铁锌矿床和迪木那里克典型铁矿床地质特征分析,并以肯德可克矿床为例,对比了不同成因类型铁矿床中磁铁矿的化学成分组成,探讨了区内铁多金属矿床成因类型。研究认为,区内铁矿床形成经历了早期火山喷流-沉积作用、区域变质作用,后期矽卡岩化-热液叠加改造作用等多期、多样性的成矿演化过程。
The Qimantage region is situated in the west segment of the East Kunlun orogenic belt,which is characterized by abundant formations and compositions,predominant NWW trending faults,and intensive intermediate-acid intrusive magma activity during the Variscan-Indosinian orogenic cycle.In this paper,we make a review of geological setting for metallogenesis in this region,and analyze the geological features the Kendekeke,Yemaquan,and Dimunalike Fe polymetallic deposits.Taking the Kendekeke deposit as an example,we compare chemical compositions of magnetite of deposits of different genesis types,and explore the genesis of Fe polymetallic deposits in the study area.It is suggested that the formation of the iron deposits in this region is associated with a mineralization evolution process of multiple periods and diversity,including early volcanic exhalation-sedimentation,regional metamorphism,and later skarnized-hydrothermal superposition.
出处
《地质与勘探》
CAS
CSCD
北大核心
2011年第2期244-250,共7页
Geology and Exploration
基金
国家科技支撑计划项目(2006BAB01A01)
中国地质调查局地质大调查项目(1212010813046和1212010881632及1212010911032)
