If the Grand Canyon was carved by the flood, and the geologic column was created by the flood, what created the geologic column at the grand canyon?
Well, most creationists assert that finely striated stratigraphy can be layed down quickly, such as a large catastrophic flood might do. For face value it makes sense. If you take an hour glass and let the sediment fall, it tends to make fine layers. Could you extrapolate that towards the Grand Canyon? I can't say for sure.
As well, another part of their argument points to radical curves in the formation of rock. Obviously, that can't happen to solid rock through slow erosion because the rock would snap. But if you, however, have soft, pliable mud after, say, its been immersed in large volumes of water, after the water dries, the sediment will pack and harden, and thus, might explain why there are such curves in solid rock.
I suppose you could say the grand canyon's column was created, but if it was, it was created with fossils, but remember, creationists need the flood to explain the order of the fossils. So just how was the geologic column and grand canyon formed?
Creationists don't categorize fossilized organisms age estimates via the geologic column. In fact, they tend to vehemently oppose it as being credible to begin with. Rather, they tend to point out places where clustering of fossils have been found in basins. Obviously, a mass graveyard can only accumulate in a few ways naturally. Most notably would be a flood that swept the animals in to a run-off, they died, then fossilized.
Are they right, even in part? I don't know. I'm not much of an advocate for geological arguments or age estimate arguments. But what you are presenting is not unique and they have offered rebuttals to the paradoxes you describe.
Edited by nemesis_juggernaut, : No reason given.
"It is better to shun the bait, than struggle in the snare." -Ravi Zacharias