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昆秦接合部造山带多层次逆冲滑脱构造特征及形成机制探讨
FEATURES OF MULTICYCLIC THRUST-DECOLLEMENT BELT AND ITS FORMING MECHANISM IN THE OROGENIC BELT OF JUNCTION PART OF QINLING AND KUNLUN
【摘要】 昆秦接合部造山带逆冲滑脱构造,发育在造山带苦海—赛什塘构造混杂带南侧,由一系列断面南东倾,规模大小不一的韧性逆冲断层、韧脆性叠瓦状逆冲断层及同斜紧闭褶皱、平卧褶皱、逆掩断层构成多层次逆冲滑脱构造带。它的形成及演化奠定了昆秦接合部造山带复杂的构造结局,标志着昆秦接合部造山带印支期大规模陆内造山活动的结束。
【Abstract】 The thrust-decollement belt in the orogenic belt of junction part of Qinling and Kunlun is developed on the south side of Kuhai-Saishitang tectonic melange belt.It is constituted by a series of ductile thrusts with fault plane dip to southeast and various scale, ductite-brittle imbricate thrusts,isoclinal folds,recumbent folds,and overthrusts.Its for- mation and evolution have established the complex tectonic pattern of the orogenic belt in junction part of Qinling and Kunlun marked the end of the large scale inter continental oroge- neses.
【关键词】 昆秦接合部;
多层次;
逆冲滑脱;
【Key words】 junction part of Qinling and Kunlun; multicycle; thrust-decollement;
【Key words】 junction part of Qinling and Kunlun; multicycle; thrust-decollement;
- 【文献出处】 青海地质 ,Geology of Qinghai , 编辑部邮箱 ,2000年02期
- 【分类号】P542
- 【被引频次】7
- 【下载频次】83