Basin system is the united area of the deposition space and the denudation area . the evolution of the basin system can mirror the process of the related erogenic movement . the disintegration of a basin system indicates the end of one time of erogenic movement 沉积盆地系统是堆积空间与蚀源区的统一，盆地系统的演化反映出造山运动的历程，一个盆地系统的瓦解是一次造山运动的完成，同时又形成了新的盆地系统。
The mountain was formed 2 , 500 million years ago with the earth s primeval orogenic movement . located in the central part of shandong province , and in the east of north china plain , mount tai range stretches eastwards for more than 200 kilometres along south bank of the yellow river 泰山，是中国五岳之首，古称“岱宗” ，形成于25亿年前，是第一次造山运动兴起的大山它位于山东省中部，华北大平原东侧，京沪铁路中段。
Therefore the flexural stress covers a large percentage of the total stress field . the study of the flexural stress field of the continental lithoshpere in western china will contribute a lot to the understanding of the tectonic evolution of continental lithosphere and the global plate tectonics 研究中国西部大陆岩石圈的挠曲应力场对于了解该区总应力场的性质、研究板内造山运动和青藏高原隆升以及地球动力学都具有非常重要的意义，有助于理解构造运动的动力机制和大陆岩石圈的运动特征。
The geomechanics based on the change of rotating speed of the earth could answer a large part of the above mentioned questions , but the power which it depends on offered by the expansion or contract of the earth and tides et al is too weak to serve as the energy to change the rotating speed of the earth , so it is also difficult to explain them quantitatively 基于地球自转速度变化的地质力学理论，对之所做的定性解释颇为合理，但因其只靠地球收缩及潮汐引力等缓变力作为引起地球自转速度变化的动力来源，力量强度太小，不足以引发强大的褶皱造山运动，且有被海水运动取代的难题。
This paper reveals the collision energy of a celestial body with the earth could induce a sufficient change of rotating speed of the earth to make the folding orogenesis , and briefly explains its mechanics , and therefore offers a brandnew perspective for researching continental orogenesis 揭示了星地碰撞可以为大陆造山运动提供足够强大的突发性动力来源，并简要阐明了其作用机制，可以解决地质力学所遇到的力源不足和被海水运动取代的两大难题，从而为大陆构造研究开辟了一个新境界。
