Describe the history of the Earth through geologic time.
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The geological history of Earth follows the major events in Earth's past based on the geological time scale, a system of chronological measurement based on the study of the planet's rock layers (stratigraphy). ... Earth was initially molten due to extreme volcanism and frequent collisions with other bodies.
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Its magnitude on the Earth's surface can range from 25 to 65 microteslas (0.25 - 0.65 Gauss). Roughly, it is an area of magnetic dipole, which, at its current position, is tilted 10 degrees along the earth's rotating axis. It is like a bar magnet placed at the center of the earth at that angle.
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