Jun 29, 2024 · Collection of educational charts All charts can be downloaded by clicking on the images.

Learn what the geologic time scale is. Identify eons, eras, periods, and epochs on the time scale, and study the history and development of the...

Numerical dating provides a numerical age for a geologic feature or event. There are many methods of numerical dating that involve radioactive decay of naturally occurring elements. …

Eon, Long span of geologic time. In formal usage, eons are the longest portions of geologic time (eras are the second-longest). Three eons are recognized: the Phanerozoic Eon (dating from …

This geologic time chart shows whats going on in a geologic time scale table in a way that is easy to read, understand and learn about the history of the earth.

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