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Oceans and continents exemplify the highest-order landforms. [citation needed] Landform elements are parts of a high-order landforms that can be further identified and systematically given a cohesive definition such as hill-tops, shoulders, saddles, foreslopes and backslopes.
Sandur – Plain formed from glacier sediment transported by meltwater; Side valley – Valley with a tributary to a larger river; Summit – Point on a surface with a higher elevation than all immediately adjacent points; Trim line – Clear line on the side of a valley marking the most recent highest extent of the glacier
Landforms are categorized by features such as elevation, slope, orientation, stratification, rock exposure, and soil type. They include berms, mounds, hills, cliffs, valleys, rivers, and numerous other elements. Oceans and continents are the highest-order landforms.
Geomorphology (from Ancient Greek γῆ (gê) 'earth' μορφή (morphḗ) 'form' and λόγος 'study') [2] is the scientific study of the origin and evolution of topographic and bathymetric features generated by physical, chemical or biological processes operating at or near Earth's surface.
A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of about 2,600 meters (8,500 ft) and rises about 2,000 meters (6,600 ft) above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate boundary. The rate of seafloor spreading ...
A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny. [1] Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics . [ 2 ]
Physiographic world map with mountain ranges and highland areas in brown, pink, and gray. This is a list of mountain ranges on Earth and a few other astronomical bodies.First, the highest and longest mountain ranges on Earth are listed, followed by more comprehensive alphabetical lists organized by continent.
A lithified (consolidated) sand dune is a type of sandstone that is formed when a marine or aeolian sand dune becomes compacted and hardened. Once in this form, water passing through the rock can carry and deposit minerals, which can alter the colour of the rock.