Carbonates on Mars
Videos
The formation of carbonates on Mars have been suggested based on evidence of the presence of liquid water and atmospheric carbon dioxide in the planet's early stages. Moreover, due to their utility in
Estimating carbon in the Nili Fossae plains region of Mars from orbiters (2 September 2015).
Nili Fossae on Mars - largest known carbonate deposit.
Seasonal flows on warm Martian slopes are thought to be either salty water flows occurring during the warmest months on Mars, or dry grains that "flow" downslope of at least 27 degrees.
Reprojected view of warm-season flows in Newton Crater
Close, color view of recurrent slope lineae, as seen by HiRISE under HiWish program Arrows point to some of the recurrent slope lineae. Fan may have been built up by past recurrent slope lineae.
Recurrent slope lineae elongate when the slopes are at their warmest. Near the equator, RSL elongate on northern slopes in the northern summer and on the southern slopes in the southern summer.
Ice (white), salt (red) and warm-season flows (blue) on Mars