What is the mechanism for the Geologic Column layering?

What is the mechanism for the Geologic Column layering?

An observable process I can show here is where sand pictures sort sand into layers making art as show below in the videos.

Video

Video

And there is also a repeatable mechanism for horizontal layering. This is also testable and repeatable with the same results which makes it empirical. Here is a video demonstrating this.

So we have repeatable (empirical) mechanisms for both horizontal and vertical layering. Mechanism which support the flood causing the layering, not millions of years.

Video

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