The optimum biostratigraphic sequence was established. Ten fossil assemblage zones (RASC zones, in term of RASC distance) were identified, and regional geological time table was set up, which shows the relationship between age, strata, and RASC zones.

• 根据化石事件间的 RASC 距离,将这个最佳序列划出10个化石组合带,用 CASC 方法建立了区域地质年表,展示了地质年代、地层和RASC 分带之间的关系,并完成了井间对比。