JR Baumgardner and DW Barnette have shown that the Flood could easily erode the existing bed rock to create the sediment needed to produce the observed post-Flood strata. The Coriolis effect and rotating earth cause ocean currents throughout the Flooded world. The currents accelerate over the flooded continent to such high rates that rock is eroded. Depending on the scenario, the currents range from 40 to 80 m/s. Since rock is eroded and the resulting sediment transported, the Flood actually happened.
http://static.icr.org/...ver-the-Continents-during-Flood.pdf
The fact that no sediment could be deposited on the continents due to the 40 to 80 m/s velocities is not discussed. Note: Sand deposits in water velocities around 0.1 m/s (IIRC) and silt/mud even slower.
So according to their study, the Flood would erode the continents. If the velocities are too high to deposit the sediment on the continents, then it must all be in the ocean basins.
So the obvious evidence of the Flood is the bare rock of the continents and sand, etc. deposits far out into the oceans.