If the vast sedimentary rock layers on the continents were deposited, then cemented, because of hundreds of oceanic trangressions and regressions through hundreds of millions of years (as opined by mainstream scientists), then between the transgressions, when the sea level was low (in regression), river valleys would have formed through the newly deposited sand and clay sediments from the previous transgression, or the new river would have continued to flow through the previous river valley of the previous regression, but neither is seen in the geologic record, in which vast flat-lying sedimentary layers, stacked like pancakes, and grading into each other, predominate, indicating actually just one transgression of the ocean onto the continents, leaving billions of marine creatures (99% of the fossil record) entombed in clay and sand, then frozen there, by carbonate rich deluge water which then somewhat set-up, like cement, the vast and thick layers of sand and clay, to form the extensive layers of shale and sandstone carbonate layers which dominate the sedimentary geologic record.
And the mountain ranges rose at the close of the Deluge, evidenced in the complete lack of tension cracks in the now folded sedimentary layers which we see composing the mountain ranges, proving that those layers were still wet and soft when the sedimentary layers were compressed and upthrusted to form those ranges, proof positive of a global catastrophy of continental flooding, then regression of the sea into the newly deepening ocean basins, in the aftermath of the break-up and rapid separation of the landmass of Pangea, the pre-deluge supercontinent, which was torn asunder and flooded by the fountains of the deep spoken of in Genesis, water and magma from the bowels of the earth, with water composing usually about 70% of magma when it explodes to the earth’s surface, the source of water of Noah’s Flood (as the 40 days and nights of rain were the fountains venting water high into the sky until the flood had risen sufficiently to carburate the lauching of water high into the atmosphere).
Read more about the global flood in the free ebook download of my first book, Old Earth? Why Not!, and to learn how only the warmer ocean following the Deluge could have been the engine for the Ice Age, read-on under category Catastrophic Climate Change, to also understand the overwhelming evidence that the Ice Age did in fact end circa 1500 B.C., when the Ipuwer Papyrus of Egypt was written, the same time that the Exodus of the Jews to Canaan occurred. Also, to know how the ancients, during the Ice Age, measured and thereby navigated the earth, and surveyed the astronomically derived dimensions for the Great Pyramid of Giza, then please be certain to checkout article #2 at http://IceAgeCivilizations.com, to see that all of the Bible is true, so I hope you pass the information to your friends. And for a great overview see http://genesisveracityfoundation.com.