At least, that’s what I think this quote means…
The measurement of river sediment output into the oceans indicates that all of North America would have been eroded flat to sea level in just 10 Ma. However, this does ignore a range of geotectonic factors. Regardless, a maximum erosion time to level North America is probably no more than 40 to 50 Ma.
As you can see, the quote qualifies itself, so maybe we have an extra 30 to 40 million years… That’s a relief!
All kidding aside, an interesting article about the Devil’s Tower, a phenomenon I have thought of visiting on one of my cross-continent treks. It’s a bit off the beaten path, so we haven’t taken the time to visit, but it is a natural wonder in God’s great world.
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