The study of planetary surfaces is a field of planetary geology known as "'surface geology "'but also a focus of a number of fields including planetary cartography, topography, geomorphology, atmospheric sciences and astronomy . "'Land "'( or ground ) is the term given to non-liquid planetary surfaces.
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The near surface geology of this area is classified into three sections : the old lake bed which is soft clay from volcanic ash with a high water content, a piedmont area, much of which is capped by 5 to 30 meters of lava less than 2, 500 years old, and an old river delta area.
