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Category:Geologic Systems (view source)
Revision as of 07:01, April 20, 2008
, 07:01, April 20, 2008Copied from 'Geologic systems'
'''Geologic systems''' are the classifications given to the rock layers that make up the Earth's crust. The [[Geologic system]] is also known to uniformitarian scientists as the geological time scale.
[[Category:Geology]]
[[Category:Geology]]