Have you ever heard of the Great Unconformity?
This is a distinct, essentially flat surface, often separating the lowest layer of sedimentary rock from upper layers of metamorphic rock. It is called the Great Unconformity because it extends across all of North America and represents five hundred thousand to over a billion years of “missing time.”
How could a billion years of sediment have been removed from all over this huge continent? This doesn’t happen anywhere today. Yet during a world-covering flood such a process is conceivable: energetic waves of sediment-laden fluid scoured lower-laying surfaces, before dropping loads of sand and other assorted sediment.
The Great Unconformity fits perfectly into the Biblical model during the worldwide flood of Noah’s day!
(Source: Inspired Evidence – Tom Vail, Your Guide to the Grand Canyon, 2008 pp.157)
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