层状材料褶皱对几种地质活动机理研究的启示

Inspiration of wrinkles in layered material for the mechanism study of several geological activities

从制备层状材料褶皱得到启示,给出了地球地质活动的一些可能的机理性解释.层状晶体的褶皱可以通过在柔性基底上施加的单轴或双轴应力实现,这与地球的层状结构及地球表面的山体褶皱形成机理有许多相似之处.由于地球质量分布不均匀且存在自转,因此各个板块的转动惯量是不一样的,本文指出南北半球之间存在自转角速度差异,对赤道附近的地形地貌及地质活动可能产生重要影响.本文给出了地震、火山以及大陆漂移等地质活动新的机理解释.针对中国特殊的地形地貌,提出了物质流假说并详细论述了物质流的流动趋势,指出中国大陆地质活动和板块交界处的地质活动的机理存在明显差别.物质流假说可以较好地解释中国的地震灾害、矿藏资源分布及中东地区石油丰富的可能成因,为中国未来预测地震灾害及矿藏资源开发提供了新的理论参考.该工作为人类更好地避免自然灾害、理解地球上的自然现象及合理利用自然资源提供了新的启示.

In this work,we propose a universal method of preparing wrinkle structures in layered crystals,which provides a good model for studying the physical properties of layered materials under strain.More importantly,there are some similarities between wrinkle engineering and geological activities,which inspires us to give some possible explanations to the mechanism for geological activities like earthquake and volcanic.The wrinkle structures of layered crystals can be achieved by exerting uniaxial or biaxial stress on the flexible substrate,which is very similar to the layered structure of the Earth and the formation of mountain folds on the Earth’s surface.Since the Earth has an uneven mass distribution and self-rotation as well,the moments of inertia for plates are different from each other.Here in this work,we point out that there is a difference in angular velocity between the north hemisphere and south hemisphere,which may strongly influence the topography and geology activities near the equator.This work provides a possible mechanism explanation for several geological phenomena such as earthquakes,volcanoes,and continental drift.Based on China’s special topography,we propose a matter flow hypothesis and discuss the orientation of matter flow in detail.We point out that the geological activity mechanism in China and the regions around plate boundaries is quite different.The matter flow hypothesis can be well applied to explain the causes of earthquake disasters in China,the distribution of mineral resources,and the possible causes of oil in the Middle East countries.Besides,it also provides a new theoretical guidance for predicting the earthquake disasters and prospecting the mineral resources in China.This work provides a new idea for humans to avoid natural disasters,to understand the natural phenomena on the Earth,and to make rational use of natural resources.