What surface features are present on the Moon?

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Jan 12, 2018


craters, basaltic beds and dust.


Because of the absence of any atmosphere the Moon surface is not exposed to the weathering that is common on Earth. Therefore the landforms present are specific and long-lasting.

Craters: the impact of asteroids generates large craters (which are not of volcanic origin) clearly visible on the Moon surface. Several of those craters are surrounded by rings of deposits called "ejecta" which are composed by fragment of the surface projected around by the impact.

Maars (seas): are large flat areas covered by basalt relics of the primordial phase of the Moon genesis when volcanic activity was present and lava was emitted from fractures in the crust.

Dust: a thick layer of dust and small fragments of rock (regolith) covers most of the Moon surface. This was an initial concern during the planning of the Moon landing because there was a risk that these deposits could be so deep and loose to cause the sinking of the lunar module. This was not the case though.

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