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The geology of Mars is the scientific study of the surface, crust, and interior of the planet Mars.
Reds and pinks are higher elevation (+3 km to +8 km); yellow is 0 km; greens and blues are lower elevation (down to −8 km).
Whites ( Mars is a differentiated, terrestrial planet.
Most of our current knowledge about the geology of Mars comes from studying landforms and relief features (terrain) seen in images taken by orbiting spacecraft.
Mars has a number of distinct, large-scale surface features that indicate the types of geological processes that have operated on the planet over time.
This section introduces several of the larger physiographic regions of Mars.
Together, these regions illustrate how geologic processes involving volcanism, tectonism, water, ice, and impacts have shaped the planet on a global scale.
Mars Orbital Laser Altimeter (MOLA) colorized shaded-relief maps showing elevations in the western and eastern hemispheres of Mars.
The term incorporates aspects of geophysics, geochemistry, mineralogy, geodesy, and cartography.
Interactive imagemap of the global topography of Mars, overlain with locations of Mars landers and rovers.