The point of viewing a very long segment of neatly and deeply stacked UNeroded lithified sediments, is to contemplate the fact that the original deposition of those sediments was continuous and could not possibly have involved exposure at the surface of the earth of any layer or part of the stack at any time during its formation.
But that is not a fact, since we can see clear evidence of subaerial erosion and of the deposition of terrestrial sediments. So we know that sometimes there was exposure at the surface, or those things couldn't have happened.
Sigh. During the Flood there would have been SHORT periods of exposure at the surface BETWEEN WAVES AND TIDES, during which ripples and minor erosion and footprints could have occurred to the wet sediments, but NOT the kind of erosion that occurs to land that is aerially exposed for years on end, which would be visible in the strata from across the whole canyon. You would not have those neat level horizontal strata ANYWHERE AT ALL had that ever occurred to ANY of the layers.
The SHARPLY separated different kinds of sediments just make no sense at all on any theory of normal deposition in normal time ...
Oh, I don't know about that. Geologists have a highly satisfying theory. Moreover, one that doesn't involve, y'know ... magic.
The disturbed parts of the strata can be shown to have undergone the disturbance after the entire stack was in place
The erosion, not so much.
See above. I do tend to forget that there were very brief periods of exposure of the sediments as they were being laid down in the Flood.
Or, of course, the strata below the Great Unconformity.
That's why I specified that the stack above the basement rocks was to be the focus. We CAN confine the discussion to that particular billion years or whatever it's supposed to be, as many Creationists are willing to do.
However, I believe the Great Unconformity, as I have argued here before, was also created after ALL the strata were laid down, created by the forced tilting and sliding of a segment of the lowest strata by the volcanic activity beneath the Canyon, which had sufficient force to tilt that segment but not enough to disrupt the horizontality of the stack above it, although the entire region was lifted upward, stack and all.
Edited by Faith, : No reason given.