Dune fields on Mars

All About Space - - Launch Pad -

The Mar­tian sur­face is a cu­ri­ous one; many fea­tures on it are mir­rored on Earth, al­low­ing astronomers to draw con­clu­sions about its his­tory based on Earth-based ob­ser­va­tions. In this in­stance, NASA’s Mars Re­con­nais­sance Or­biter has pic­tured a re­gion known as the Co­prates Chasma and its dune fields.

These re­gions are more specif­i­cally known as ‘wall dune fields’ as they are lo­cated along canyon wall slopes. They oc­cur due to the down­ward trans­port of dune sed­i­ment from air­flow ero­sion, amongst other pro­cesses. Dune fields such as these tell astronomers a lot about the planet's pro­cesses of which make short work of shap­ing these fea­tures.

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