| [1] |
1 Einsele，G.Seilacher,A .et al.，1982, Cyclic and Event Stratification, Springer-Verlag Berlin Heidelbery, New York. 2 Kumar,N.& Sanders, J, E. 1978,，Earth Sci Ser.，V. 6, p. 767-770. 3 Kumar,N &Sanders, J.E.1976, J.Sed. Petr.，V .46, p .145-163. |