What length of time does the geological time scale cover?

Answer 1

Since the paleozoic the Cretaceous and Carboniferous periods were the longest, each about 80 million years. The Neogene (Cenozoic period preceding the current Quaternary period) was only 22 million years. Periods are marked by significant climate or environmental change, including mass extinctions and the proliferation of new species.

Everything before the Vendian is lumped into the Proterozoic period, extending back about 1.9 billion years. Geologists may divide that up further as they determine periods of significant change recorded in ancient rock.

Answer 2

There is no definite length of a geological time scale, unless you wish to use some 13 billion years which the universe has existed for. The geological time scale tends to use the units of time: 109 (billion) years, and 106 (million) years. E.g. the Earth is 4.6 billion years old; the Carboniferous period was around 350 million years ago. The scale is greatly varied. If you were to plot all major events, you might consider making your scale logarithmic, especially if you were planning to put the appearance of Homo Sapiens (us) on the same scale as the formation of the Solar System.

Answer 3

The geological time scale covers the entire history of Earth, spanning approximately 4.6 billion years. It is divided into different eons, eras, periods, epochs, and ages to categorize and organize the Earth's history based on significant geological and biological events.

Answer 4

It covers the time period beginning with the formation of the Earth (4.567 billion years ago) to the present.

Answer 5

Whatlenght Of Time Does The Geologic Time Scale Cover

Answer 6

4.6