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对苏联上前寒武系迭层石时空分布的复查证明,迭层石具有不重复的和单一方向的变化特征,同时代迭层石组合系统的组成具有清楚的横向变异,这样的变异,在中、晚里菲时期最为显著。
A review of the temporal and spatial distribution of the Precambrian superimposed rocks on the Soviet Union proves that the superimposed rocks have the characteristics of non-repetitive and unidirectional changes, while the composition of the complex superimposed-rock assemblages has a clear lateral variation. Such variation, at In the late Philippine period the most significant.