Interior Layered Deposits and Sulfate
Parts of the floor of Candor Chasma contains layered deposits that have been termed interior layered deposits (ILD's). These layers may have formed when the whole area was a giant lake. However, many other ideas have been advanced to explain them.
Some places on Mars contain hydrated sulfate deposits, including ILD's. Sulfate formation involves the presence of water. The European Space Agency's Mars Express found possible evidence of the sulfates epsomite and kieserite. Scientists want to visit these areas with robotic rovers.
These deposits have been found to contain ferric oxides in the form of crystalline grey hematite.
Read more about this topic: Coprates Quadrangle
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