Earth History: Geologic Time. Geologic Time Geologic Time: It is very, very long. –Earth is estimated to be around 4.6 billion years old based on the.
Y.N.Gorozhanina The sedimentary response of the arc –continent collision i n the South Urals
By: Heather Shams en.wikipedia.org/wiki/subduction.
Plate Tectonics!
Earth History: Geologic Time
