Victoria Crater Wall reveals some of its history
Another spectacular shot of the crater (Victoria) by the Opportunity rover on Mars. Notice the rover tracks on the surface above the wall for scale. What is fascinating about the crater wall is that you can see (not as clear in this picture as in some others unfortunately) a delineation between jumbled up rocks, as evidenced by the random arrangement and multiple directions of layering in them, at the top and then layers of rock that are broken but have layers all the same direction. The later which are the lower 50% of the rocks in the picture probably represent the original rock layers, into which the meteorite that caused the crater, plunged. The upper jumbled rock are the rock that was through up by the collision and landed on the Martian surface. What is really amazing is that this jumble of rock now has a smooth surface which the rock is traveling over that is made of what looks to be a maze of smooth topped rocks. This brick-like surface seems to be the remains of rocks that have been completely smoothed off, probably by wind, over a long period of time creating this smooth plain of what was probably a jumble of rocks in the past. The processes that caused all of these various features are not all understood but it seems obvious that no short period of time was required to produce these features.


1 Comments:
www.occasioncameras.com is very informative. The article is very professionally written. I enjoy reading www.occasioncameras.com every day.
fast cash loan
online payday loan
Post a Comment
Subscribe to Post Comments [Atom]
<< Home