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4 Comments

1. Paul Cutlip says:

   15 January 2012 at 18:29

   Let’s see . . . a coarse grained intermediate bedded sand stone with erosion controlled (at least initially) by jointing running mostly upper right to lower left but also upper left to lower right. Then on the right hand side just below center I think I see a trace fossil??

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2. Howard says:

   15 January 2012 at 23:05

   Before zooming in, I would have said it’s a heavily jointed, weathered sandstone; but after zooming in, it looks more like limestone or dolomite (sorry–dolostone). The weathering style isn’t typical for a carbonate rock subject to rain/chemical weathering, so I’m guessing it’s been sand-blasted in a desert environment.

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3. Brian Romans says:

   16 January 2012 at 00:12

   I was going to say jointed sandstone as well, but after Howard’s comment I zoomed in and think it might be some kind of evaporite.

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4. Paul Cutlip says:

   16 January 2012 at 16:04

   That’s what I get for not zooming. I think you guys are right, some sort of chemical sed rx and I think my trace fossil is just bedding seen at an angle.

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5. AGU Blogosphere | Mountain Beltway | What I saw there says:

   16 January 2012 at 16:19

   […] I showed you this picture and asked what you saw […]

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6. AGU Blogosphere | Mountain Beltway | The ventifacts of Rooiels says:

   17 January 2012 at 10:12

   […] of the mystery photo I posted over the weekend, the beach at Rooiels (“red grass” in Afrikaans), South Africa, is a lovely […]

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