摘要
在对有代表性的４ 条地震剖面的解释、分析和平衡剖面编制的基础上， 分析了冷湖背斜带中东段的基本构造特征， 指出其构造变形程度西部强东部弱， 在各个背斜的演化过程中均包含生长背斜发育阶段， 北东倾逆断层发育时期早于南西倾逆断层， 反映出祁连山向柴达木盆地的冲断挤压作用早于阿尔金山， 喜山运动晚期构造改造作用强烈． 特提斯阶段性俯冲、消减和闭合作用， 以及印度板块与欧亚板块的最终碰撞和往北楔入作用是冷湖背斜带发育的区域构造环境．
The basic structural characteristics of the central and east part of Lenghu anticline belt is analyzed based on the interpretation of four representative seismic profiles and the drawing of their balance cross sections The structure deforms in west part stronger than in east part of the anticline belt The growth anticline appears in the evolution process of each anticline The reverse faults dip NE produce earlier than SW owing to the thrust compression to Chaidamu basin from Qilian mountain earlier than Aerjin mountain The deformation of late Himalaya movement is strong The tectonic background of Lenghu anticline belt is the cyclicity subduction and closure of Tethys, as well as the collision of Indian plate with Eurasian plate and wedging of Indian plate to North
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1999年第6期561-565,共5页
Journal of China Coal Society
