If you look at the overhead photography (especially that which is in oblique contrast ) . you can see patterns of what appear to be stream distribu taries that empty into basins of equal elevation.(NASA has several " slope shade" LIDAR pages) In these we can see the sense of equal elevation basins .These are most probably seas of some extent. The XRF and multispectral scanning also shows the chemical makeup of the now desert like areas that were once these seas. NASA has some collections of these spectral acns in which we can see salt deposits almost like those we can see on dry basins on the earth (look up dry Gulf of karabugas) sp? In these dry basins we can see the salt patterns that leave prints almost like concentric ring of alt pecies that have lesser to higher solubilities (Like in the edges of a dry basin we can see spectra of salts like natron , then natrolite, prrysonite sylvite and finally along the center deeper part of the basin, there are deposits of halite (Na Cl). Other , more rare salt bodies like thos of K permanganate,"wad" and other compounds that form those "blueberry deposits".
No doubt we are dealing with a once wet planet that became a desert (with remnant deposits of fairly vast reaches of ground waters), and these original surface waters seemed to have disappeared in a short time . I think e can safely say that but as to causality, Im not sure we have enough data. We can see in a very small number of photos that huge nasses of running water formed distributaries with sediment deposits from "standing waves" and rocks showing some rounding from water. however, we see no deposits of regionlcross bedding or density disparities so much of causality may have to wait as we see what new drill data and macro photography can show.
Theres a lot of time and mony being expended so I can understand that JPL and the university partnrs arent about to theorize without stronger evidence. We also need much more geophysical data (seismic and magnetometry and large wenner arrays) to really understand this planets tectonic history.
Im not following the structural or topo work because I believe thats a multi decade task. i think we are looking more at resources for sustainability and evidence of early life (besides geochemical mapping).
Sigma Xi pubs post periodic summaries of what we know now without trying to sound like a tabloid.
who know how much wegwt on this trip. I too want to be able to read of periodic findings from our (and I beieve China;s) newest rovers.
Ill watch this space if you come up with anything and any links Id love to see em.
Im a retired mining geologist whos dirtied his hands in a lot of areas because many times we discover, unannounced, new tricks that serve our own researches.
Anybody says "who cares" Ill kick em in the ass on behalf of all nerds of this planet.