KINETIC MODELLING ON THE FORMATION AND EVOLUTION OF THE QINTONG DEPRESSION IN NORTHERN JIANGSU
-
摘要: 盆地形成和演化的运动学研究是盆地模拟的重要环节,对于研究圈闭的形成演化和圈闭类型及圈闭规模有着极其重要意义。速度场及变形时间可以完全描述断层上盘的变形。本文通过运动学数学模型的建立,进行剖面校正和压实校正处理,模拟揭示溱潼凹陷的形成演化和同沉积过程以及断层各期次的伸展量。并对溱潼凹陷的演化特征进行分析,根据三条剖面的模拟结果,对凹陷西部、中部和东部地区不同的演化特征进行研究。Abstract: Kinetic study on the formation and evolution of a basin is one of key links of basiningsimulation,it is also momentous significant for the research of trap's formation and evolution,and type and size of oil/gas traps. The deformation of hanging walls may be well described by the field of velocity vector and the time it occurred. Through the establishmentof kinetic mathematical model,the profiling and compaction corrections have been completed in this paper. The modelling reveals the formation and evolution of the Qintong Depression and synsedimentary process,as well as the amount of faulting extensions in various stages.Thereafter,the evolutional characteristics of the Qintong Depression have beenanalvsed in this paper.According to three modelling profiles,the authors have studied dif-ferent evolutional features in the west middle and east sections of the Depression.
-
[1] Rally AW et al. Structure. Seismic Data and Orogenic Evolution of Southern Canadian Rochy hfountains. Ball. of Canadian Petroleum Ceology,1966.14:337-381 [2] Dahlstrom CDA. Balanced Cross-section. Can. J. Earth Sci. 1969,743-757 [3] Flliot D. The construction of Balanced Cross Sections. J. Struct. Geol.,1983.5:101 [4] Waltham D. Finite Difference Modelling of Hangingwall Deformation. J.Struot. Geol.,1989.11;433-437 [5] Waltham D. Finite Difference Modelling of Sandbox Analogues, Compaction and Detachment Free Deformation. J.Struct. Geol.,1990,12, 375- 381 [6] Peter B J. Displacement Along Thrust Faults. Eclogoe Geological Helvetiae. 1987,78,313-334 [7] Woodward V B et al. 1989.平衡地质剖面.贾维民等译.北京:中国地质大学出版社,1991 [8] Birkoff G. Hydrcdynamics. Dover Publications. Vew York 1955 [9] Magara K. Compaction and Fluid Migration Developments in Petroleum.Science.Vol. 9, Eheiver. New York, 1978 [10] Steckler M S et al. Subsidence of the Atlantic Margin of New York. Eaeth Planet Sci. Lett., 1978.41:1-13 [11] Sclater J G et al. Continental Stretching, an Explanation of the Post-Mid-Cretaceous Subsidence of the Central North Sea Ba,in.J.Gtolphys. Res.,1980,85:3711-3739 [12] Crank Jet al. A practical Method for Numerical Evalution of Solutions of Pratial Differntial Equations of the Heat-conduction type. Proc. Cambridge Phil. Soc.,1947,43,50 [13] Claerbout J F. Imaging the Earth's Interior. Blnrkrotll Scientific, Oxford [14] Verrall P. Structural Interpretation With Applications to North Sea Problems. Corerst Notes No. 3. Joint Ass. for Petroleum Exploration Courses UlK).1982 [15] White N J et al. The Relationship Between the Geometry of Normal Faults and that of the Sedimentary Layer in their Hanging walls. J. Struct. Ceol.,1986.8:897-909 [16] 施泽进,施央申,张渝昌.反演断层数学模型的建立和应用.成都理工学院学报,1994,21(1) [17] 卢华复,俞鸿年等.试论郊庐断裂中段新构造期构造应力场的演化.构造地质论丛(3),北京:地质出版社.1984.107-115 -
点击查看大图
计量
- 文章访问数: 1049
- HTML全文浏览量: 152
- PDF下载量: 264
- 被引次数: 0
下载:
苏公网安备32021102000780号