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依据在原划埃连卡特群花岗片麻岩中获得(1 970±47)M a(锆石U-Pb法)同位素年龄数据,结合岩石学、岩石地球化学及区域地层对比,从中解体出喀啦喀什岩群。通过岩石学、岩石地球化学、构造特征和变形变质特征、同位素年龄及成矿专属性研究,认为铁克里克断隆构造基底具双重构造基底特征,喀啦喀什岩群组成结晶基底,埃连卡特岩群、塞拉加兹塔格岩群组成过渡基底;蓟县纪的博查特塔格组、苏玛兰组及青白口纪的苏库勒克组及震旦系组成沉积盖层。喀啦喀什岩群对铁、铜、金多金属矿成矿有利。该成果对铁克里克断隆结晶基底的组成、发展和演化研究具有重要意义。
Based on the data of (19770 ± 47) M a (zircon U-Pb dating) obtained from the original Erlian Carter Group granitic gneisses, combining with the petrology, lithogeochemistry and regional stratigraphic correlation, La Kashgar rock group. Based on the study of petrology, lithochemistry, tectonic characteristics, deformation and metamorphism, isotopic age and metallogenic peculiarity, it is considered that the basement of the fault structure in the Tiekelike is characterized by a double tectonic basement, the Karache member is composed of crystalline basement, In the Jixianji, the Beichatuag Formation, the Sumalan Formation and the Qingbaikouji Suculuk Formation and the Sinian sedimentary cover are formed. The Karachoji rock group is good for iron, copper and gold polymetallic mineralization. This result is of great significance for the study of the composition, development and evolution of the decolded crystalline basement in the iron Creek.