Is there proof of a worldwide flood in the time of Noah?

The earth's surface is covered by vast sedimentary rock layers, called strata. The strata are often hundreds of metres thick and cover thousands of square kilometres. The best explanation for why these thick rock layers were deposited is a catastrophic flood. This flood produced huge quantities of sediment, in which remains of living things were mixed with eroded minerals. The Bible's account of the flood has echoes in legends from many early cultures around the world which refer to a great deluge, or flood. The best explanation for this consistency is that ancient records are speaking of a real historical event that was recorded and remembered.