The units of geological age are: Zhou, Dai, Ji, Shi, Zhou and Shi. The whole crustal history is divided into Phanerozoic and Phanerozoic stages. Phanerozoic is divided into Archean and Proterozoic, and Phanerozoic is divided into Paleozoic, Mesozoic and Cenozoic. It can be divided into several periods, such as CAMBRIAN, Jurassic and Quaternary.
Each epoch is divided into two or three epochs, and epochs are divided into several periods. The division and names of the above eras are international and unified all over the world, while the division and names of the following eras are determined according to the actual situation of each region. The stratigraphic units corresponding to each unit in geological age are: space, boundary, series, series, step and belt.
Extended data:
In the process of the formation and evolution of the earth, some astronomical and geological events have taken place, and the time period of these events is called geological period.
In various geological periods, major events related to the earth, the solar system and the earth in space have left records on the earth itself, crustal movement, strata, rocks, structures, paleontology, paleomagnetism, paleoglaciers, paleoclimate and many other aspects.
In different geological periods, different geological processes have different characteristics.
The history of the earth can be divided into: the formation period of the earth, the formation period of the crust, the early period of entering the solar system, the period of entering the solar system, the formation period of the earth-moon system and the newborn period.
References:
Baidu Encyclopedia-Geological Age