karst valley

   1. Valleys in karst are normally distinctive due to the lack of integrated surface drainage. Most are either blind (due to being closed where the drainage sinks underground), headless or pocket (where a river emerges from a spring) or dry (where surface flow has been lost due to underground capture). The exception is the allogenic valley, where a river completely traverses a karst, normally because underground conduits at or below valley floor level are immature. Fine examples of allogenic karst valleys are Dove Dale in the Peak District and France’s Tarn Gorge [9].
   2. Elongated solution valley in limestone [20].
   3. Valley produced by collapse of a cavern roof [10].
   Synonyms: (French.) vallée karstique; (German.) Karsttal, Karstgaße; (Greek.) Karstik 2 kilás; (Italian.) valle carsica; (Russian.) karstovaja dolina; (Spanish.) valle kárstico; (Turkish.) karst vadisi; (Yugoslavian.) krška ( kraska) dolina.

A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. . 2002.

Look at other dictionaries:

  • karst valley —    A closed depression formed by the coalescence of multiple sinkholes; an elongate, solutional valley. Its drainage is subsurface, diameters range from several hundred meters to a few kilometers, and it usually has a scalloped margin inherited… …   Glossary of landform and geologic terms

  • valley sink —    (American.) An elongated closed depression or series of interconnecting depressions forming a valley like depression. Compare karst valley; uvala [10] …   Lexicon of Cave and Karst Terminology

  • valley fill —    Unconsolidated debris accumulated on a valley bottom [16] …   Lexicon of Cave and Karst Terminology

  • valley spring —    See spring, valley …   Lexicon of Cave and Karst Terminology

  • Karst topography — is a landscape shaped by the dissolution of a layer or layers of soluble bedrock, usually carbonate rock such as limestone or dolomite. Due to subterranean drainage, there may be very limited surface water, even to the absence of all rivers and… …   Wikipedia

  • Valley — In geology, a valley (also called a vale, dale, glen or strath and near or in Appalachia, a draw) is a depression with predominant extent in one direction. A very deep river valley may be called a canyon or gorge. The terms U shaped and V shaped… …   Wikipedia

  • blind valley —    1. A karst valley abruptly terminated by the passage underground of the watercourse which has hitherto resisted the karst processes and remained at the surface. An intermediate type, the half blind valley, exists in which the valley form… …   Lexicon of Cave and Karst Terminology

  • allogenic valley —    A karst valley incised by a watercourse originating on impervious rock with a volume sufficient for it to traverse a limestone area on the surface.    The valley is incised from the limestone contact and with the passage of time the river is… …   Lexicon of Cave and Karst Terminology

  • cone karst —    1. A karst landscape dominated by low conical (or hemispherical) hills that forms only in wet tropical climates. The type example is Gunung Sewu in Java. Individual hills are remarkably uniform, each some few hundred meters in diameter and… …   Lexicon of Cave and Karst Terminology

  • pocket valley —    1. The reverse of a blind valley, extending headwards into the foot of a calcareous massif. The upstream end is terminated by a cliff, frequently lunate, from whose base emerges a subterranean karst stream meandering across a flat, steep sided …   Lexicon of Cave and Karst Terminology

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