论文部分内容阅读
地层完整性是指地层剖面上保存下来的沉积物所代表的地质时间与该剖面所代表的总时间之比。由于沉积物沉积过程的脉冲性和不连续性，地层剖面的完整性是一个大于０小于１的小数，也就是说，地层剖面或多或少都是不完整的。地层剖面的这一性质对年代地层对比有着极为不利的影响，因为人们通常认为是连续完整的“单相连续”剖面或远洋沉积剖面实际上并不完整；再加上自然界天然物种成种速率的限制，使得以生物地层学为基础的年代地层对比的精度要得到大幅度的提高在近期几乎是不可能的。我们认为，只有以高分辨率事件地层学和全球旋回地层学为基础，综合生物地层学、磁性地层学、化学地层学以及构造地层学研究成果的全息地层学才是今后地层学发展的方向。
Stratigraphic integrity refers to the ratio of the geologic time represented by the sediment preserved in the formation profile to the total time represented by the profile. Due to the impulse and discontinuity of sediment deposition, the integrity of the formation profile is a fraction larger than 0 and smaller than 1, that is to say, the formation profile is more or less incomplete. This property of the stratigraphic profile has an extremely adverse effect on the age stratigraphic comparisons because the “single-phase continuous” profile or the oceanic sedimentary profile that is generally considered to be continuous and complete is virtually incomplete; coupled with the natural species species rate Restrictions, making stratigraphy based on the age of stratigraphic contrast accuracy to be greatly improved in the near future is almost impossible. We believe that holographic stratigraphy, which integrates biostratigraphy, magnetic stratigraphy, chemical stratigraphy and structural stratigraphy, is the future direction of stratigraphy development only based on high-resolution event stratigraphy and global gyratogenesis.