Well yes, some (not all) strata do contain marine fossils. And yes they appear in layers in (within) mountains, along with other kinds of layers, some igneous, some metamorphic, some deposited in dry conditions, some deposited slowly in calm conditions. The world has undergone a lot of change.

This post then mentions the Sauk and Tippecanoe Sequences, followed by some models of how sediment can form quickly. I am not enough of an expert in deposition to know if they've got it right, but it's quite clear that not all sediment is deposited rapidly.

A broad answer to all of these claims can be found here – scroll down to the Geologic Column heading. Look familiar? Yes it's the Williston Basin again (as discussed in the geologic column thread), which is an area where the complete geologic column can be observed. It also includes the Sauk and Tippecanoe Sequences. Presumably the above post is trying to claim that these are flood layers (which is rather strange, since these sequences have known limits and most certainly do not cover the whole world).

Notice that Morton gives you details about the Deadwood Formation, the bottom-most sedimentary layer, which dates to the late Cambrain/early Ordovician (Sauk Sequence); and the subsequent Winnipeg and Silurian Interlake Formations (Tippecanoe Sequence). Upon closer study than the previous post is willing to give, there are a great many problems with trying to label these as flood layers as you can see from Morton's article. It's simply an absurd notion.



If that's the calibre of their science then I would sincerely doubt that these global flood models are watertight.