Glossary of Speleological and Caving Terms
V

Copyright © Australian Speleological Federation Inc. 2002

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VADOSE FLOW Water flowing in free-surface streams in caves.
Speleology term. Ref JJ
VADOSE SEEPAGE Refers to water moving downward through the vadose zone, either in narrow fissures, or on the walls of air-filled caves. Syn. percolation water.
Speleology term. Ref JJ
VADOSE WATER Water in the vadose zone.
Speleology term. Ref JJ
VADOSE ZONE That part of the cave environment that lies or once lay above the water table. Also refers to the erosional processes that act in that zone. See Unsaturated zone.
Speleology term. Ref JJ
VAUCLUSIAN SPRING A spring rising up a deep, steeply-inclined, water-filled passage from a deep aquifer, and under considerable pressure. The term derives from such a spring in France that rises about 250m and flows at about 25 cubic metres per second.
Speleology term. Ref JJ
VENOM From a variety of animals, and introduced to a victim by a variety of methods. Toxin types include, anticoagulant, haemolytic, haemorrhagic, myotoxin, neurotoxin, procoagulant. Bite sites may be infected by agents such as bacteria, carried by the animal.
Miscellaneous terms. Ref MM
VERMICULATION Pattern of thin, worm-shaped coatings of clay or silt on cave surfaces.
Speleology term. Ref JJ
VERTICAL ANGLE The angle in a vertical plane between a line of sight and the horizontal, positive above the horizontal and negative below.
Survey & Mapping term. Ref JJ
VUG A small cavity in rock, often lined with crystals.
Cave - Erosional & Solutional Features. Ref WM

Copyright © Australian Speleological Federation Inc. 2002

The Glossary of Speleological and Caving Terms is the copyright property of the
AUSTRALIAN SPELEOLOGICAL FEDERATION INC. (ASF) and any reproduction of it either in part or in full, should have the approval of the ASF, and such reproduction should be accompanied by a copyright notice similar to this one.

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