祁漫塔格地区尕林格铁多金属矿花岗闪长岩岩石地球化学特征及地质意义

Qi diffuse tager region essential salinger fe polymetallic granodiorite rock geochemical characteristics and geological significance

尕林格铁多金属矿处于东昆仑祁漫塔格成矿亚带内,区内发育的印支期花岗闪长岩为该区的成矿主岩体。岩石地球化学特征表明,该期岩体为高钾钙碱性岩石,轻稀土富集、铕显负异常,且K、Rb、Ba、Th等不相容元素强烈富集,为产于主动大陆边缘的大陆岛弧花岗岩(I型花岗岩)。与区域花岗闪长岩特征一致,进一步指明印支期造岩浆活动对祁漫塔格矿集区的成矿作用具有主导作用。

In the area of east kunlun metal ore deposit in the east kunlun area, the development of the indo-time granodianite is the main rock body of the area. Rock geochemical characteristics show that the phase for high potassium calc-alkalic rock, rock mass enrichment, light rare earth europium negative anomaly, and K, Rb, Ba, Th strong incompatible elements for native to active continental margin of the continental arc granite（I type granite）. In the same way, the characteristics of the granites in the regional granulocytes indicate that the activity of imprinting is the leading role in the metallogenic action of the qi manitalite collection.