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SOME FUNDAMENTAL PROBLEMS ABOUT SEQUENCE STRATIGRAPHIC ANALYSIS OF COAL BASIN

Li Sitian Li Zhen Lin Changsong Yang Shigong Xie Xinong (China University of Geosciences)  
In Palaeozoic,mesozoic and cenozoic coal basins of China,approaches by sequencestratigraphy,distinguishing sequence boundaries,dividing sequence stratigraphic units,reconstructing depositional system tract and predicting optimum coal-rich units,are being conducted.However,models ofsequence strata established by the North America geologists can not be simply used in China due todifferences in geological backgrounds of different coal basins.Thus,it is necessary to reestablish frameworkmodels of sequence stratigraphy for China basins of different patterns based on their special geologicalbackgrounds,and,objectively evaluate controlling functions of tectonics,sea-level changes,palaeoclimate,and sediments supply over sequence formation.
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