Geological Time Scale
지질연대표
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<speciesfyi-glossary slug="geological-time-scale"></speciesfyi-glossary>Definition
The chronological framework dividing Earth's 4.6-billion-year history into eons, eras, periods, and epochs.
Detailed Explanation
The geological time scale was developed by geologists in the 19th century from stratigraphic work before radiometric dating existed — boundaries were defined by abrupt changes in fossil assemblages marking mass extinctions and evolutionary radiations. The current Anthropocene proposal reflects the recognition that human activity has become a geological force. Understanding geological time is essential for grasping the pace of evolution and the recency of human impacts.