http://hirise.lpl.arizona.edu/katalogos.php


Cerberus Fossae East of the Head of Athabasca Valles (ESP_016216_1900)
Credit: NASA/JPL/University of Arizona
This image shows part of Cerberus Fossae, a long system of extensional (normal) faults arranged in trough-bounding (graben-bounding) pairs. Cerberus Fossae served as the source of a large volcanic eruption that draped Athabasca Valles in lava.

Large boulders that have been dislodged from the graben walls are visible on the floor of Cerberus Fossae. The first subimage shows an example of an approximately 6 meter (20 feet) boulder that left a distinct track as it moved downhill. Although this track is quite clear, ripples inside the track are discernable, indicating that enough time has passed for wind activity to rework loose material into the form of ripples. With close examination of this observation, one can see many boulder tracks, some with ripples and some without ripples.


A Burst of Spring (ESP_016032_2600)
Credit: NASA/JPL/University of Arizona
In the winter a layer of carbon dioxide ice (dry ice) covers the north polar sand dunes. In the spring the sublimation of the ice (going directly from ice to gas) causes a host of uniquely Martian phenomena.

In this subimage streaks of dark basaltic sand have been carried from below the ice layer to form fan-shaped deposits on top of the seasonal ice. The similarity in the directions of the fans suggests that they formed at the same time, when the wind direction and speed was the same. They often form along the boundary between the dune and the surface below the dunes.


Dune Erosion and Streaks (ESP_016291_2640)
Credit: NASA/JPL/University of Arizona


Well-Preserved Impact Crater with Central Peak in Acidalia Planitia (ESP_016289_2175)
Credit: NASA/JPL/University of Arizona


Teardrop Defrosting Features (ESP_016280_2655)
Credit: NASA/JPL/University of Arizona

http://hirise.lpl.arizona.edu/katalogos.php?page=2


Daedalia Planum Albedo Pattern and Wind Streak Monitoring Site (ESP_016279_1500)
Credit: NASA/JPL/University of Arizona


Lobate Feature (ESP_016274_2260)
Credit: NASA/JPL/University of Arizona


Linear and Isolated Dunes (ESP_016270_2590)
Credit: NASA/JPL/University of Arizona


Crater with Interesting and Complex Bedforms (ESP_016267_1425)
Credit: NASA/JPL/University of Arizona


Tightly-Meandering Ridge in Aeolis Planum (ESP_016269_1750)
Credit: NASA/JPL/University of Arizona


Possible MSL Landing Site in Mawrth Vallis (ESP_016262_2040)
Credit: NASA/JPL/University of Arizona


Slope Streaks on Dunes (ESP_016256_2635)
Credit: NASA/JPL/University of Arizona

Salt deposits left over from an ocean



Now for the Cydonia region
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