摘要
依据构造解析成果 ,按设计的程序对鄂尔多斯煤盆地的中、新生代构造应力场进行了平面有限元模拟 .经多层次模拟的构造应力场与盆地的构造特征基本一致 。
The Ordos Basin, as a world class energy resources bearing basin, is situated in the west part of the North China Craton. In past decade, the hypothesis of forming and evolutionary mechanism for the basin was proposed by some geologists, but the evidence finished by dynamics of the earth yet remains to be found in the future. For this reason, a reconstruction of tectonic stress field of the Ordos Coal Basin in Mesozoic and Cenozoic, mainly based on the tectonic analysis of conjugate joint and others is made. The result shows that an average occurrence of the maximum principle compressive stress axis is 179～359°∠2～3° in Indosinian, 130～310°∠2～3° in Yanshanian and 30～210°∠1～2° in Himalayan movements respectively. The simulation of the Mesozoic and Cenozoic stress fields has also been carried out based on the application of plane element method. It is postulated that the driving force behind those fields is derived from the collision and/or downgoing events of the Tethys and Pacific tectonic realms along the margin of Asia continent.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2000年第z1期1-5,共5页
Journal of China Coal Society
基金
煤炭科学基金资助项目!(93地 -2 0 82 1)
