The evolutionary tendance reflected by the above sedimentary record probably signifies an important tectonic turn in the history of the residual Paleotethys ocean.
这一沉积记录所反映的演化趋可能标志着古特提斯残留海的一次重大构造转折。
Earthquakes and tsunamis that resulted from the collision could have wrought havoc on the sedimentary record, causing discrete strata to swirl together and completely scrambling time lines.
由于撞击造成的地震和海啸可能对沉积层造成严重的破坏，使得离散的岩层旋转混合在一起并完全打乱地质时间线。
It is a global record: there is remarkably little variation in isotope ratios in sedimentary specimens taken from different continental locations.
这是一个全球性的记录：在取自不同大陆位置的沉积标本中，同位素比率的变化非常小。
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