[Muleteam1]

Your photo sure seems to show exposed consolidated sandstone layers of an ancient streambed or sand dunes partially covered by wind-blown sediment. The fractured surface is really interesting. However, I am by no means a geologist having only minor in the subject. And I can tell you, several layers of sediment have by now settled on that degree.

Muleteam1

[MineralMan]

"Your photo sure seems to show exposed consolidated sandstone layers of an ancient streambed or sand dunes partially covered by wind-blown sediment. The fractured surface is really interesti"

Sheesh! I'm a complete idiot, and didn't notice how wide the photo was. When I finally scrolled across it, lots more became clear.

Especially interesting is the group of rocks near the right edge. It clearly looks like selective erosion, probably by wind, of some of the rocks, exposing horizontal (almost) ridges with deep hollows between them. This almost exclusively occurs in sedimentary formations where harder layers remain and softer layers erode.

I'm betting on water-deposited sedimentary rocks.

Note, too, that these are below the rim of the crater, where they were exposed by the impact, but below the surrounding surface. The fracturing may have been caused by the impact, but long enough ago to allow this erosion.

Fascinating.