Exploring the Grand Canyon, from the bottom up.

Thread moved here from the Proposed New Topics forum.

Let's stick to the very narrowly defined topic folks. We are discussing the layering of the Grand Canyon from the bottom up. Any discussion speculation can be taken to another thread.

This is solely about the physical rocks, their makeup, their relevance to each other as the thread progresses, and the mainstream geological explanations.

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Information that might be interesting considering some recent threads.

NJ, the OP for this thread states:

I'd like for us to discuss the Grand Canyon, beginning with the lowest, oldest layers and then working up to the top, layer by layer. I'd like to see explanations for each layer, it's composition, the environment when it was created, and get questions about that layer answered before we move up to the next layer.

If you want to discuss a non-mainstream hypothesis please start a new thread.

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This was such an important and useful thread. I would really like to see it continue. If Jar can find a geologist to work off of (Maybe Rox will come back in and help)