前陆盆地挠曲过程模拟的理论模型

本文讨论了前陆盆地形成的主要控制因素，包括逆冲负荷、盆地沉积物负荷、地壳内部水平挤压力和地壳力学性质，介绍了前陆盆地弹性和粘弹性挠曲力学模型的基本特征。在此基础上，结合典型实例，探讨了运用粘弹性和弹性挠曲模型模拟前陆盆地沉降和沉积过程的基本方法和基本原理，揭示了造山带与前陆盆地系统演化的动力作用过程。

THE THEORETICAL MODELS FOR SIMULATING THE FLEXURAL PROCESS OF FORELAND BASIN

This article deals with the major factors controlling the formation of forelandbasins,including the thrust load, the load of basin sediments,the intracrustal horizontalcompression and the crustal mechanical properties.The authors have introduced the char-acteristics of elastic and viscoelastic flexural models of the foreland basin,and probed intothe basic methodes and principles for simulating the subsidence and deposition processes ofthe foreland basin using the elastic and viscoelastic models,and the geodynamics of theevolution of the orogen and foreland basin system in the light of typical examples.