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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.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoSince 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.
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∙ 13y agoIt covers the time period beginning with the formation of the Earth (4.567 billion years ago) to the present.
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∙ 8y agoWhatlenght Of Time Does The Geologic Time Scale Cover
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∙ 12y ago4.6
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How can a geological time scale BEST be reconstructed?
A geological time scale can best be reconstructed using a wide variety of reference books and materials that lay out the chronological order of the geological scale.
Which scale shows geologic and biological history of earth?
Geological Time Scale.
How do geological and human time scales differ?
The geological time scale is hugely larger than the human time scale. For humans, a decade is a significant period of time, and even our civilizations span only a few thousand years... whereas in geological terms even a million years isn't that much.
The geological time scale divided up and organized according to what life forms existed on earth?
correct. The geological time scale is divided up and organized according to what life forms existed on earth. So basically yes.
What information does the geologic time scale provide and what are the major divisions of geological time?
The information the geologic scale provides is animals and fossils over time and periods. Major divisions of time is called eras.
How many years does the geological time scale for earth cover?
0 secs
What is geological scale?
The geological time scale organizes a long period of time.
How can a geological time scale BEST be reconstructed?
A geological time scale can best be reconstructed using a wide variety of reference books and materials that lay out the chronological order of the geological scale.
Which scale shows geologic and biological history of earth?
Geological Time Scale.
What do periods in the geological time scale represent?
the hood
What are divisions on the geological time scale called?
Periods
How has radioactivity been used to refine the geological time scale?
it has not
Discuss geologic time scale and its importance to geology?
time scale that geological can back the past of the hundreds of years
How long is precambrian time in geological time scale?
It is 4 billion years
By which professions was the geological time scale used by?
The geological time scale was used by professions such as scientists. Scientists use this to record important life events and life forms. These are very important to humans.
Where can you find a geological time scale?
Have a look at the wikipedia link attached.
How do geological and human time scales differ?
The geological time scale is hugely larger than the human time scale. For humans, a decade is a significant period of time, and even our civilizations span only a few thousand years... whereas in geological terms even a million years isn't that much.
