Would dessication of a conglomerate result in sinkholes? It sure does not look like any kind of an impact crater or window into a lava tube. To me it looks a lot like a good old sinkhole created with hydraulic erosion. -WaV
On 10/5/07, Mixon Bill <bmixon...@austin.rr.com> wrote: > > Interesting photos, blown up and enhanced. It looks like there's a > relatively thin, hard layer of rock, presumably lava, over a deep > mass of looser material that has been sapped out from below somehow. > Doesn't look like a window into a lava tube, because the deeper stuff > doesn't look like solid material. Hard to judge depth (even if I knew > the scale), because it isn't really obvious that the bottom is seen. > -- Mixon > >
