re: Among many fascinating aspects...
Marcia, most if not all of that overhand is "recent" erosion of the outcrop. The individual layers are pretty low-relief.
I agree with comments expressed elsewhere that these small-scale layers look very similar to the large scale layering seen in craters. But note that many of those appear to be constructional mounds - at least one rises higher than the crater rim. I envisage an oozy hydrothermal system gradually building layers and mounds...