Relationship between the wrench structure in the north - margin block - faulting belt in the qaidam basin and altun tectonic system 柴达木盆地北缘块断带的扭动构造与阿尔金构造体系的关系
Since late tertiary the neotectonic movement in the region has been being more intense , and the most obvious feature of the neotectonic movement was characterized by large - amplitude block - faulting and strong volcanic activity 晚第三纪以来,本区新构造运动比较强烈,最显著的特徵是断块大幅度升降运动和强烈的火山活动。
Results obtained in the research are : l . by the virtue of palaeostructure analysis and method of balanced cross sections , we have studied the formation and development history of qianmiqiao buried hills , and indicate that the formation of ordovician buried hills can be mainly divided into four periods , namely , stable uplift period , fold - thrust period , block - fault tilting period , and thermal subsidence and depression period 论文取得以下成果: 1采用古构造分析和平衡剖面技术,研究了千米桥潜山的形成演化史,指出其下古生界奥陶系潜山的形成主要经历了稳定抬升、褶皱冲断、块断翘倾和热沉降坳陷四个时期。
Based on predecessors research by geological - geophysical synthesized studying and three - dimensional technique , draw up west , middle and east three composite profiles , explanation of the structure model in different level including surface , middle and deep of the basin , finally concluded in homogeneity of the basin is show by belting in south - north trend , block - faulting in east - west trend and vertical sphere - laying 在前人研究基础上,采用地质-地球物理综合研究和三维技术,编制了西、中、东部三条地学综合剖面,研究解释了盆地浅、中、深部不同层次的结构构造样式,得出盆地地壳结构不均一性规律。