HISTORIC & GEOLOGIC TIME

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Civilization Timescale (per Don)

Don created this chart using internet resources; it keeps things in perspective, especially regarding the competition between civilizations for mineral resources.

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civilization_timeline.jpg
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Official Geologic Timescale

 The official Geologic Timescale can be obtained from the web addresses below:
http://www.stratigraphy.org/ICSchart/ChronostratChart2017-02.pdf​ 
 https://www.geosociety.org/documents/gsa/timescale/timescl.pdf

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Simplified Geologic Timescale

From Encyclopedia Britannia

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0_to_650_w_animals.jpg
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Quickview Geologic Timescale

Created quick view timescale

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geologic_timescale_approx.jpg
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