Geologic time scale

Hence it is considered that a galactic year can be based on to institute an ideal geologic time scale in which a galactic year is an era .

银河年是建立理想地质年代表的基础，每一个银河年就是一个代。

According to the recent astronomic observations , qualitative change evolution of organisms and global glacial stage data , the appropriate time interval of a galactic year should be 260 Ma , based on which a new geologic time scale is put forward in this paper .

依目前天文观测及全球生物质变进化和冰期资料来看，银河年时距以260Ma为宜。本文据此提出了一个新的地质年代表。

Geologic time scale Symposium of Holocene held in Dalian

中国全新世地层年表讨论会在大连举行

On a geologic time scale , the recent , human-induced planetary warming has been quite sudden , and the huge ice sheets have only just started to respond .

从地质时间的尺度来看，近来人类活动引起的地球变暖现象是相当突然的，巨大的冰盖这才刚刚开始有所反应。