I am reblogging this post and commenting: Here is a thoughtful and intelligent discourse on creationism, written by an evangelical Christian, Scott Buchanan, who has a PhD in chemical engineering. I’m reblogging his post from his blog, Letters to Creationists. At over 10,000 words, it’s long. But very interesting and well worth the read.
By the early 1800s European geologists (many of them devout Christians) realized that the rock layers they observed had to be far older than the 6000 years allowed by a literal interpretation of Bible chronology. For instance, as discussed here , angular unconformities like that shown below could not been formed in the course of the one-year-long Flood of Noah.
Angular Unconformity at Siccar Point, Scotland. Siccar Point, Scotland (Photo: Wikipedia “Hutton’s Unconformity”)
Numerous other evidences for an old earth have been observed by scientists over the past two hundred years. These include fossil soils, and massive deposits of salt and of limestone in the midst of sedimentary rock layers, and tens of thousands of annual layers in lake bottom deposits (“varves”) and in glaciers (see Some Simple Evidences for an Old Earth). We can trace, in reasonable detail, the movements of the sections of earth’s crust over the…
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The Mountain Mystery 