A foolish man, which built his house upon the sand—Matthew 7: 24-27.
Speak to the earth and it shall teach thee—Job 12:8
During the Ham on Nye debate last February 4, Bill led off with a great example to throw Ken off balance. He pointed out that (ironically), the Creation “Museum” itself was built upon rocks which refuted flood geology! Bill even brought a piece of fossiliferous limestone from a road cut nearby to show that it was full of fossils, delicately preserved, and not the kind of thing a flood would produce. He explained it briefly, but I don’t know how many people got the point—and given the humorless nature of most creationists who don’t catch on to sarcasm and snark, I doubt they even noticed the irony that their entire model was refuted by the rocks beneath them at that very place.
Let’s look at the geologic background to this concept. First of all, how do limestones form? Geologists know from studying them all over the world, and looking closely at them in ancient settings, that limestones are produced by the accumulation of fragments of calcareous animals and plants (shell fragments, corals, pieces of calcareous algae) in warm, shallow, clear tropical waters, with no mud or sand from land that would clog the gills of the shelly organisms or corals, or make the water dark and muddy. Since many of these organisms (especially corals) only form big reefs in warm tropical waters, and since much of the reef community is plants (not only the calcareous algae, but also the algae symbiotically living in reef coral polyps), the water must be very shallow and clear to allow light penetration. Consequently, modern limestones are formed in shallow clear tropical waters far from the mud of land-based rivers: the Bahamas, Bermuda, Yucatan, the Atlantic Coast of Florida (but not the Gulf side, where Mississippi mud darkens the waters), the Persian Gulf, and the southwest Pacific and Great Barrier Reef of Australia. Nowhere else! Not only is this a very restricted setting, but under no circumstances do limestones (today or in the past) show any evidence of being formed in the muddy, turbulent, cold waters of a typical flood—or even a supernatural flood. If you look at them closely, they are accumulations of layer after layer of fossil communities, slowly building on top of each other in quiet waters, often with delicate organisms (such as the stick-like bryozoans and delicate corals and sponges) buried in life position, with no evidence that they had been battered and toppled by the powerful energy of flood waters. Knowing this, right away we can refute “flood geology”, because there are many places in the world with huge piles of limestone, each made of layer upon layer of delicate fossils, that cannot be made by flood energy. Heck, even the creationists’ favorite example, the Grand Canyon, is built with many limestone layers: the Muav Limestone near the base, the huge thickness of Redwall Limestone at the cliff break, and the Kaibab and Toroweap Limestones that cap the rim. (continue reading…)