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Results tagged with geology
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user 58
Questions regarding surface features of celestial bodies.
6
votes
What caused Cydonia mesas, such as "The Face on Mars", to be created?
One theory is that long ago the mesas were craters that got filled with lava. Once the lava solidified, floods eroded the land around the lava trap, creating a mesa.
According to Dr. James B. Garvi …
- 23.8k
6
votes
Should we expect the surface rocks of Venus to be oxide poor?
As best as I can understand from these papers, it would seem that the precise levels are not known, but that noticeable weathering on Venus implies significant(?) levels of oxidation on the surface. T …
- 23.8k