Abstract
The Early Paleozoic sedimentary basin in western Zhejiang was a wedge-shaped basin with a total area of 2000 km. In the Iater Ordovician, a flysch formation of 1000-2000 m thick developed in the basin. Based on the grain sizes of the sediments, patterns of beddings, bedding plane feature and grading. 8 states are selected. All data mentioned above are calculated by computer. The matrixes of frequency transition, probability transition, limit probability, replacement and fixed vectors and entropies are resulted respectively. The results show that the flysch basin in the western Zhejiang can be onviously divided into two logitudinal sedimental zones. the south east zone was a littoral area. and the north West zone was the axis of along and narrow basin. The hydrodynamic scele or the later was bigger andmore complicated than the tirst one. The entropy types and the projections of systematic entropy values have further improved the shallow-water origin of the flysch.
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