At 07:58:36 UTC Mastcam Right imaged these conglomerate-like looking rocks.
The conglomerates or clastic sedimentary rocks or even detrital rocks derive from sediments whose constituent elements in turn derive mainly from the accumulation of lithic fragments of other altered rocks transported generally by different exogenous agents such as river courses, sea currents, winds, etc… (see https://it.wikipedia.org/wiki/Roccia_sedimentaria_clastica).
In the sand between the rocks one can also see dark stripes that look like they are due to small water flows. I would like to point out to those who try to attribute such flows to the simple landslide of the sand itself, that in an environment where everything has remained unchanged for no less than a few hundred million years, it is highly unlikely that there is anything that can still landslide, in addition to the fact that if the sub-surface sand is darker than the surface sand, this can only depend on a higher humidity present in the sand itself!
Also note the greenish spots visible here and there on the sand and partly on the rocks.
The original image is a black and white encoding of the Bayer mask that has been converted to color through a process called “debayering” or “demosaicing”. In addition, the photo has undergone a reduction of noise due to Jpeg compression, white balance and a slight increase in microcontrast and color saturation in order to make the colors more similar to what the human eye would see.
Original image: https://mars.jpl.nasa.gov/msl-raw-images/msss/02592/mcam/2592MR0136250081100743C00_DXXX.jpg
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