N any division of geological time into chronological units, whether relative (with units in the correct temporal sequence) or absolute (with numerical ages attached) 地质年代表
Evidence of abrupt change — on a geological time scale — wrought by human hands would seem to be overwhelming.
人类造成的突变(以地质时期为尺度衡量),其证据触目惊心。
Scientists are now debating whether it should be officially included in the Geological Time Scale.
科学家正讨论是否应正式把这个时期列入地质年代表。
These are mainly attributed to the mining's geological background, the distribution of mercury belt and the mercury mining scale, and the mine closure time.
在沉积物中汞含量的比较也是得到相同的结果,这主要与矿区的地质背景、汞矿带的分布、还与汞矿开采规模、汞矿停产时间有关。
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