karst valley

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 from the sinkholes. It may have nominal, local channel flow (small streams), sequential sinkhole inlets (springs) and outlets (swallow hole, etc.); also called compound sinkhole (not preferred), uvala (not preferred).
   Compare: sinkhole, interior valley.
   SW & GG

Glossary of landform and geologic terms. 2013.

Look at other dictionaries:

  • 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… …   Lexicon of Cave and Karst Terminology

  • 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

  • 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

  • Sequatchie Valley — is a relatively long and narrow valley in the U.S. state of Tennessee and, in some definitions, Alabama. It is generally considered to be part of the Cumberland Plateau region of the Appalachian Mountains; it was probably formed by erosion of a… …   Wikipedia

  • 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

  • Blatnica Valley — Geobox | Valley name = Blatnica native name = Blatnická dolina other name = category = etymology = official name = motto = nickname = image caption = Rock window in the Blatnica Valley country = Slovakia country state = region = Žilina district …   Wikipedia

  • interior valley —    A large, flat floored closed depression in a karst area whose drainage is ultimately subsurface and its floor is commonly covered by alluvium. Some interior valleys may become ephemeral lakes during periods of heavy rainfall, when sinking… …   Glossary of landform and geologic terms

  • solution valley —    (not preferred)    use karst valley …   Glossary of landform and geologic terms