How do subsurface processes influence surface landforms in areas of karst topography?
How do subsurface processes influence surface landforms in areas of karst topography?
Geomorphology studies the origin and evolution of topographic features present on the surface by various processes, either chemically or physically. Groundwater will also create landforms by carrying out the process of erosion, transportation, and deposition.
Karst topography is defined as an irregular terrain produced by the erosion action of groundwater on limestones. Karst topography is developed in carbonate rocks, especially limestones, having fewer fractures and more density. The low water table level is, therefore, favorable for the development of karst.
The features produced can be seen both on the internal as well as on external surfaces. External features like sinkholes, limestone pavements, poljes, and karst valleys are produced due to groundwater action. Caves and caverns are also formed. This erosion process will produce a characteristic topography known as eggbox landscapes where more amount of bedrock has been removed or eliminated.
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