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THE HISTORY OF THE EARTH - Coggle Diagram
THE HISTORY OF THE EARTH
Geologic time
Geologic events are very slow if compared with the timescale of human life
The Earth formed 4.55 billion years ago
Dating
Absolute Dating
Relative Dating
Geological periods
Secondary Period
250-65 million years BC
Tertiary period
65-2.6 million years BC
Primary period
570-250 million years BC
Quaternary period
2.6 million years BC- Present
Archaic period
4550-570 million years BC
Continental Drift
The single supercontinent that scientist call Pangaea existed about 200 million years ago