从地壳的波状运动探讨我国大型沉积坳陷(盆地)的找油前景

A PERSPECTIVE OF OIL AND GAS EXPLORATION IN THE LARGE SEDIMENTARY BASINS IN THE LIGHT OF THE WAVE-LIKE MOVEMENT OF THE EARTH CRUST

阎秀刚

Yan Xiugang

前言地壳表层受地应力作用,以“波”的形式进行运动。地壳表层的建造与改造,大型隆起区和坳陷区正负相间有规律地分布和排列,是波状运动的结果。归纳波状运动的型式,基本上可分为两大类:(1)波状延伸,包括阶梯升降和往复增长;(2)翘板活动,包括往复转换和左右摆动。

The writer believes that the formation and deformation of the upperearth crust result from the wave-like movement of the crust.Geostress ispropagated in the form of waves.The following are important for oilexploration:1.The regular step-like uplifting and subsidence of the uplifting and subsiding belts are the main controlling factors of large sedimentary basins,i.e.control of the basin-forming epochs;2.Mutual displacement and oscillation of symmetrical subsidence inlarg sedimentary basins causing active subsiding belts provide conditionsof oil formation,i.e.control of the oil-forming epochs;3.Symmetrical folds and faults along dominant directions in large se-dimentary basins——the folding,faulting and uplifting directions are those of oil and gas migration.

10.11743/ogg19800204