塔里木盆地南缘铁克里克断隆结晶基底特征

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塔里木盆地南缘铁克里克断隆结晶基底特征

王向利高小平刘幼骐周小康范军峰何立新曾忠诚张随安

Xi bei di zhi, 2010, Volume: 43, Issue: 4

Journal Article

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。

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