Transcript of KARST LANDFORMS

karst is a topography formed from the dissolution of soluble rocks such as limestone dolomite and gypsum it is characterized by underground drainage systems with sinkholes and caves it has also been documented from where weathering resistant rocks such as quartzite given the right conditions subterranean drainage male image surface water with few to know rivers or lakes however in regions where the dissolved bedrock is covered perhaps by debris or confined by one or more superimposed non-soluble rock strata distinctive karst features may occur only at subsurface levels and be totally missing above ground the study of karst is considered of prime importance in petroleum geology since as much as 50% of the world's hydrocarbon reserves are hosted in poorest karst systems morphology the karst if occasion of a landscape may result in a variety of large or small scale features both on the surface and beneath on exposed surfaces small features may include solution flutes or rolling Heron Runnels limestone pavement clint's and Greeks collectively called Karen or lay base medium-sized surface features may include sinkholes or Sun oats closed basins vertical shafts Flibe inverted funnel shaped sinkholes disappearing streams and reappearing Springs large-scale features may include limestone pavements poles and karst valleys mature karst landscapes where more bedrock has been removed and remains may result in cars towers or hay stack egg box landscapes beneath the surface complex underground drainage systems such as karst aquifers and extensive caves and caverns systems may form erosion along limestone Shores notably in the tropics produces karst topography that includes a sharp Miqo'te surface above the normal reach of the sea and under cuts that are mostly the result of biological activity or bioerosion at or a little above mean sea level some of the most dramatic of these formations can be seen in Thailand's finga Bay and at how long Bay and Vietnam calcium carbonate dissolved into water may precipitate out where the water discharges some of its dissolved carbon dioxide rivers which emerge from the springs may produce tufa terraces consisting of layers of calcite deposited over extended periods of time in caves a variety of features collectively called speleothems are formed by deposition of calcium carbonate and other dissolved minerals many cursed related terms derive from south slavic languages entering scientific vocabulary through the early research in the Western Balkan Dinaric help eine karst a bomb a vertical shaft in karst that may be very deep and usually opens into a network of subterranean passages cenote a deep sinkhole characteristic of Mexico resulting from collapse of limestone bedrock that exposes groundwater underneath flow i've an inverted funnel shaped sinkhole skow porous irregular karstic landscape in a region of england Turlough Turlock a type of disappearing lake characteristic of Irish karst uvula a collection of multiple smaller individual sinkholes that coalesce into a compound sinkhole word derives from south slavic languages karen bands of bare limestone forming a surface limestone pavement a land form consisting of a flat incised surface of exposed limestone that resembles an artificial pavement polje karst polje karst field a large flat specifically karstic plain the name poogie derives from south slavic languages dolan also sink or sink hole is a closed depression draining underground in karst areas the name de line comes from de lino meaning valley and derives from south slavic languages karst spring a spring emerging from karst originating a flow of water on the surface pond er also sink or sink hole where surface flow enters an underground system derived from Slovenian sinking river or pond or naka in South Slavic languages karst Fenster karst window a feature where a spring emerges briefly with the water discharge then abruptly disappearing into a nearby sinkhole Thank You friends for watching this video