W Jay Schroeder said:Well how did the river stay in exsistence while the ocean was by it or over it, as in how the sand stone got there.
It didn't. The river is much younger than the rock it cuts through. The rock has to be built up first, then the river forms and cuts through it to form the canyon.
Is this to many questions.
Too many to answer in one post. What you really need is some introductory geology. Then follow that up with a history of the geology of the Grand Canyon in particular.
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