It analyzes the reasons of floor board vertical cracks,from emphasizing and raising cracks quality,choosing rational board side component forms,cleaning board surface,strengthening floor component quality management,brings forward the protecting measures of vertical cracks,in order to ensure the normal and safe use of floor surface.

Control of plate tectonics over evolution of petroliferous basins and characteristic of oil and gas distribution in China;

Charm of landing of plate tectonics on the continent as viewed from the study of the archipelagic arc-basin system;

Present-day mantle flow and its interaction with plate tectonics inferred from observational evidence;

In recent years, many Proterozoic ophiolites are identified,which indicate that modern plate tectonics could be extrapolated at least to the Early Proterozoic, and Wilson cycle has been operated since then.

Since the advent of plate tectonics, mountain-building is generally referred toas a result of collision between oceanic plate and continental plate or continentalplate and continental plate.

To divide plate tectonic units,as the author held,the four basic principles should be fol-lowed,that is,systematic principle,space-time principle,grade-order principleand synthetic principle.

In terms of the characteristic of interior tectonic deformation in the Yangtze plate and the stage of development and evolution in geohistory, its formed mechanism of the intraplate tectonics is treated in this paper, and the conclusion that the downgoing pattern within the lithosphere can be applied to account for its thin-skin tectonic is made out.