柴达木盆地构造应力场及其地质意义

The Tectonic Stress Field for the Qaidam Basin and Its Geological Significance

本文运用有限单元法,对柴达木盆地喜山期构造应力场进行计算机模拟。其结果表明盆地内部褶皱构造的形成是与盆地边界断裂作用的性质和基底构造有关。构造应力场除了控制盆内构造的空间分布规律外,对油气运移、储集上也具有重要的地质意义。

The results gained from the computer imitation of the tectonic stressfield for the Qaidam Basin during the Himalayan times by the means ofthe analysis of finite element show the close relationship between theorigin of the folds within the basin and the boundary faulting of the basinand the structures of the basement. Except for controlling the spatialdsitribution of the folds, the stress field possesse the geological significanceto the migration and reservoir of oil-gas in the basin.