Here's the question. What brief explanations do you know of for the fact that horizontal (& other) sedimentary rock strata covering large areas are generally sorted into different rock types, i.e. esp. sandstones, claystones, and limestones? I.e., assuming millions to billions of years of erosion and deposition occurred, how was it possible for only one rock type to be deposited over large areas for thousands of years, followed by thousands of years of another rock type, etc?
"A catastrophic flood" is close to the right answer. It's highly improbable that the sedimentary rock strata were deposited over millions of years, because, for one thing, there's no known way for just one type of sediments to be deposited naturally for thousands of years and then just one other type to be deposited for more thousands of years after that and so on. Instead, French geologist Guy Berthault found that sediments are sorted out during floods. He did the experiments in the lab, but he also observed flood deposits from a 1965 flood in Colorado, and others observed similar deposits from flooding after Mt. St. Helens eruptions in the 1980s.
Probably the main reason geologists don't realize that the sedimentary rock strata could not have been deposited over millions of years is because they assume that radiometric dating methods are able to determine the ages of rocks and fossils accurately. But only igneous (and maybe metamorphic) rocks are actually dated radiometrically. Sedimentary rocks and fossils are not. And the assumptions of radiometric dating are highly improbable, because radiocarbon dating methods date some of the same rocks and fossils much younger than do other types of radiometric dating. Much of Earth's radioactivity likely began during the same global catastrophe. It was found in recent decades that ionization can cause radioactive decay millions of times faster than occurs in neutral matter. And ionization would be easily possible during some natural cataclysmic events.
Young & Old Bias
There is bias in science, as science itself has been proving more and more. There is also bias among many religious people who base their "science" on "sacred" documents. The Earth is very likely much older than many religious people believe. But the sedimentary rock strata were very likely deposited during extreme flooding less than 5,000 years ago.
John Baumgardner's team of geologists found that the flooding was likely caused by asteroid swarms that came close to Earth at that time. A large body likely orbited Earth temporarily for a few months on an eccentric orbit. During perigees the body was close enough to cause tsunamis up to 2.5 km high. They swept sand, lime and mud along with organisms onto the continent/s. This occurred about once a month for 5 or 6 months, forming a megasequence of strata each time.
These events produced major changes in the biosphere and human society.
I'll try to post some links & references later today or tomorrow.
Well, it's tomorrow and I haven't gotten around to posting those items yet, but there's a good chance I will soon.
Now it's later. If anyone wants to see the references, just reply here. I'm getting too busy.