盆地研究的活动论构造观

A TECTONIC OUTLOOK OF MOBILISM ON BASIN STUDY

含油气盆地经历了一个构造学研究—沉积学研究—构造学研究的曲折发展道路。当务之急是发展和完善活动论构造观，并以之指导盆地研究。各从６个方面简述了盆地建造阶段活动论的时间观和空间观的主要内容，探讨了研究造山作用与盆地演化间统一运动学过程和动力学机制的出发点，提出应加强与全球构造旋回有关的盆地阶段性特征的探讨，末次构造－热事件的影响和以构造为主线的多学科综合研究。

Abstract A short review of history on the oil and gas bearing basin study reveals the development to experience a zigzag path of structural sedimentory tectonic researches.The recent contributions of petroleum geology should be attributed to the plate tectonics.To face a grim situation of oil and gas exploration,we should develop and perfect the tectonic outlook of mobilism,which is a guiding ideology and theoretical instruction on basin study. In the process of basin occurring and sediments depositing,the following changes can be observed in a basin:(1) the basin geometry and framework,(2) the inner textures,(3) the growth structures,(4) the tectonic setting and provenance,(5) the basin type and its formation,and (6) the geothermal pattern.Spatially,the basin analysis of mobilism is expressed by the following relationships:(1) the part and the whole of a basin,(2) a single basin and the basin group,(3) the regional and the local stress fields,and (4) the tectonic styles in the shallow and the deep.In addition,the complexities of continental margins and geothermal fields should be emphasized.A unitedly kinematic process and dynamic mechanics between orogenics and basin evolution can be explored from the viewpoints of (1) compression and tension being interdependent,(2) transformation by strike slip faults,and (3) deep seated courses. To comprehend the basin occurring,sedimentation and thermal action,the three efforts should be ma ken greatly:(1) to sum up the features of basin evolution related to the global tectonic cycles,(2) to take tectonics as a key link and to synthesize the knowledges of structural geology,sequence stratigraphy,sedimentology,geochemistry,geothermology,groundwater dynamics and oil gas accumulation dynamics,and (3) to understand the reformation or influence of the youngest tectono thermal event.