论陨击事件与全球性造山运动和板块构造诞生的关系——大地构造动力学的重要新进展  

On the Relations between the Meteor Colliding Events on one Side and the Birth of the Tectonic Plates along with the Global Mountain-Building Movement on the other Side——the New Important Progress of the Geotectodynamics

作　　者：李扬鉴[1,2] 祝有海[3] 张海启[4] 吴必豪[2] 

机构地区：[1]中化地质矿山总局地质研究院,河北涿州072754 [2]中国地质科学院矿产资源研究所,北京100037 [3]中国地质调查局油气资源调查中心,北京100029 [4]中国地质调查局,北京100037

出　　处：《前沿科学》2014年第4期4-11,共8页Frontier Science

摘　　要：就地球论地质的思维定势,使许多大地构造动力学问题至今依然悬而未决。本文研究发现,来自太空的大型陨星对地球逆向或顺向撞击,引起地球自转速度急剧变化派生的强烈经向和纬向惯性力,是造成全球性造山运动的原动力。特别是三叠纪后期密集的4次重大陨击事件,还导致地球内部地幔物质发生重大的物理化学变化,使原来规模较小、分异不充分的异常地幔,快速广泛地演变成规模巨大、分异充分的软流层。随后侏罗-白垩纪时期各大洋板块构造便取代了原来的陆表海,进入一个地质历史新时代。To establish, construct, illasstrate and expound the geological theories from the earth itself has formed a thinking tendency adopted by so many researchers of geology. This situation has made many problems concerning the geotecto dynamics still unsettled and suspended up to present. Based on our study, we have found that the strong latitudinal and longitudinal inertia forces produced by the rapid change of the rotational velocity of the earth caused by large meteors bumping against or colliding with the earth from the outer space are the true moving forces of the global mountain-building movements. Especially the 4 major collision events happened successively and densely in the late Triaassic period have caused the mantle whithin the earth to produce important physicochemical change the abnormal mantel of originally smaller size and insufficient differentiation became the aesthenosphere of large size and sufficient differentiation, and then developed fast into the great ocean which is composed of the plates of tectonics in the Jura-Cretaceous period in replace of the primeval epicontinental seas. A new era in the geological history has come to us.

关 键 词：陨击事件 全球性造山运动 板块构造 陆表海 

分 类 号：P541[天文地球—构造地质学]