Scientists observed High rates of erosion throughout Mars history.
Samples gives proof of it when erosion was extremely high inside the weather of old Mars.
The mudstone and other layered rocks prove that water was around for quite a long time.
It helped scientists to study rocks and minerals proving presence of water.
Scientists studied them to find the timing and management of abrasion on Mars.
New rocks forms from layer of floor rocks and sediments, proving water on Mars.
Erosion gives proof of active rivers for small fragments on Mars surface.