Lunae Palus Quadrangle - Deltas

Deltas

Researchers have found a number of examples of deltas that formed in Martian lakes. Finding deltas is a major sign that Mars once had a lot of water. Deltas often require deep water over a long period of time to form. Also, the water level needs to be stable to keep sediment from washing away. Deltas have been found over a wide geographical range.

• Delta in Lunae Palus quadrangle, as seen by THEMIS.

• Delta that fills a crater, as seen by HiRISE.