Through the research of the engineering characteristic of the lime factory s landslip with clayey rocks in slippery band soil,together with infiltration of precipitation,and the rising of groundwater pressure of saturation band inside the slippery substance,and the clayey rocks in the slippery band soil which has high contents of montmorillonite hydrophilic miner inflation soil.

This paper studies the chemical and mineralogical composition, the technological and physical properties of talc clay which generate specially in the west of Jiangxi province by means of chemical analysis.

In this paper, compaction and dehydration and the most important diagenesis of clayrock are introduced briefly.

Transitional tervain from siliceous rock to clayrock,both interbed and altered clayrock are favourable strata of all kinds of elements concentrated mineralization underneath the Cambrian.

The research significance and the characteristices of No. 2 coal-2 upper-floor claystone in Longkou Coal mine area;

REE geochemistry of claystone at the Permian-Triassic boundary in the Jiangyou-Guangyuan area, northern Sichuan, China and its geological implications.;

Characteristics of claystone at the continental Permian-Triassic boundary in the eastern Yunnan-western Guizhou region;

A summary is given to the construction technology of the left upper access tunnel in clay rock with major faults for the Laxiwa hydropower project and reference can be made of it for the similar project construction on the upper Yellow River.

The gray montmorillonite-rich beds (clay rocks), discovered in the Upper Shaximiao formation of Middle Jurassic, Wanzhou City, were studied mineralogically and chemically.

The black kaolinitic clay rock is a gangue from Wangshiwa coal mine in Tongchuan.