7. Limestone takes time to form. The flood would've had to last for hundreds of years (or longer) in order to build up the global layer of rock. The more likely explanation is that, at one point in geologic time or another, all land was underwater. The limestone formed there and was transported above sea level by the normal processes of the earth. | 7. Limestone takes time to form. The flood would've had to last for hundreds of years (or longer) in order to build up the global layer of rock. The more likely explanation is that, at one point in geologic time or another, all land was underwater. The limestone formed there and was transported above sea level by the normal processes of the earth. |