Introduction to Geochronology/Geologic Time

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Geologic Time[edit]

Geologic time can be measured in two very distinct ways: relative dating, which involves placing geologic events in sequential order, and absolute dating, which utilizes radioactive decay to quantify the number of years that have passed since a particular geologic event. When assessing geologic time, these two fundamentally different ways of measuring geologic time must work in tandem to reveal a more complete understanding of Earth processes.