CompuServe Messages

Hi, Kamron– >> the river would have to alternate back and forth on each side of this type of structure how could that occur? Meandering rivers do that – study the Mississippi. >> The deep side canyons that have tiny streams would not have cut them the same speed as the the Colorado. Not necessarily; it is not only the size of the stream but the speed of the water and the amount of suspended hard grit that governs its cutting power. Let the Colorado carve a V like we see downstream, then the tributaries will be flowing rapidly down the side of the V, at terrific speed and cutting backwards (away from the Colorado) as much as downwards. >> I asked where the material came from that made the layers. He said it blew here from other places. That furrowed my brow permanently. Some layers blew in, some washed in. Your brow furrowed only because you assumed the layers did not take tens and hundreds of millions of years to form – given time, it is easy. We see probable future sandstones in a great many sandy deserts, and see the wind marching the sands back and forth. They are just waiting for some limy water or other cementing agent to arrive… –Doug