GENETIC ANALYSIS AND ITS RESEARCH SIGNIFICANCE OF THE KAOLINITIC ROCK IN LOWER SHIHEZI FORMATION OF SOUTHEASTERN PART,NORTH CHINA BASIN

All kinds of analysis indicate that the major mineral composition of kaolinitic rock is kaolinite.Based on the simulating sequence of Markov chains,the simulating sequence of Markov chains,the thickness distribution, the result of trace elements and palaeosalinity,the author thinckes that the origin of kaolinitic rock in this region is belongs in depositions.