Sticking to the Grand Canyon at least for starters, because it is easy to visualize, it appears obvious to me that the individual strata are not eroded as roxrcool and others claim they are
You may have noticed, perhaps, that there's a
Grand F'ing Canyon running down through the layers? With a river down at the bottom?
Where do you suppose that came from, exactly? Aliens? I don't see how a claim that erosion never occured could be in the least bit coherent with the existence of the canyon itself.
Now if you're talking about non-river erosion, and you're certain that erosional rates exceed depositional rates, it would be nice if you could prove it with the numbers.
AbE: Sorry, that came off as totally abrasive. Let me restate in the form of a question. When you say that you don't see any signs of erosion, are you talking about the erosional origin of the canyon itself, or erosion events prior to that, acting on the
in situ sediment masses prior/post lithification?
This message has been edited by crashfrog, 03-16-2005 01:15 PM