In that case you don't understand correctly, or your "science" is wrong.Your posts have gotten worse and worse with fairy tales that are physically and scientifically impossible.
I have no good reason to believe continents drift. In the Biblical idea, continents didn't drift. There was one continent what was broken and large parts of it sunk into the water that was below it....earth requires billions of years for the internal heat of the earth to cause continental drift,
Before the flood earth (=dry land = first continent), formed dome like structure. And when it collapsed, its edges were pushed. You can compare this to, if you fold a paper and place it on a table so that it forms A. Now, if you push the paper from the top, its edges slide to opposite directions. If you would want to hold it on its form, you would need pressure on the edges to stop it. Now, when the flood came, it begun by water escaping from cracks of the original continent. The water carried stuff towards the edges of the original continent. And because the continent was broken, it was like the paper A that was pushed from the top, causing its edges to push all the material that was carried on the edges of the original continent. Obviously, on the edges there could have been lot of corals, before the flood. And now that it was pushed by the edges of the continent, it formed thicker layer of the all the material that later became limestone.You have not provided an adequate explanation of limestone hundreds if feet thick forming in the manner limestone and coral reefs form today in the Pacific Islands and the Bermuda limestone and coral plateau.
Mid Atlantic ridge appears to be the main point where the cracks to original continent formed. And from there the flood water carried stuff to east and west. Pacific ocean was the original only ocean before the flood.