MWH Global

Enviroscan Ukrainian Institute of Speleology and Karstology

Community news

Speleology in Kazakhstan

Shakalov on 04 Jul, 2018
Hello everyone!   I pleased to invite you to the official site of Central Asian Karstic-Speleological commission ("Kaspeko")   There, we regularly publish reports about our expeditions, articles and reports on speleotopics, lecture course for instructors, photos etc. ...

New publications on hypogene speleogenesis

Klimchouk on 26 Mar, 2012
Dear Colleagues, This is to draw your attention to several recent publications added to KarstBase, relevant to hypogenic karst/speleogenesis: Corrosion of limestone tablets in sulfidic ground-water: measurements and speleogenetic implications Galdenzi,

The deepest terrestrial animal

Klimchouk on 23 Feb, 2012
A recent publication of Spanish researchers describes the biology of Krubera Cave, including the deepest terrestrial animal ever found: Jordana, Rafael; Baquero, Enrique; Reboleira, Sofía and Sendra, Alberto. ...

Caves - landscapes without light

akop on 05 Feb, 2012
Exhibition dedicated to caves is taking place in the Vienna Natural History Museum   The exhibition at the Natural History Museum presents the surprising variety of caves and cave formations such as stalactites and various crystals. ...

Did you know?

That keyhole passage; keyhole is 1. this very descriptive name derives from the crosssectional shape of a cave passage that consists of a phreatic tube with a vadose canyon cut in its floor. it is the classic example of a two-phase cave passage that originated and began its development in the phreas and was then modified by vadose entrenchment. as this sequence is the result of water table lowering by normal surface erosion, keyholes are common. some keyholes are so small that the lower slot is impassable and the caver has to squeeze along the upper tube; others are very large. spectacularly long is the 5km of keyhole forming the fissures in castleguard cave, canada. a tube 6m in diameter tops an irregular tapering canyon 15m deep that must be traversed on sloping ledges at mid-level [9]. 2. a small passage or opening in a cave; in cross section, rounded at the top, constricted in the middle, and rectangular or flared out below [10]. they appear as keyholes when viewed in cross section. they are formed when underground streams flowing in a tubular passage begin downcutting to form a canyon passage [15]. see also canyon passage; passage; tubular passage; vertical shaft.?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms

What is Karstbase?



Browse Speleogenesis Issues:

KarstBase a bibliography database in karst and cave science.

Featured articles from Cave & Karst Science Journals
Chemistry and Karst, White, William B.
See all featured articles
Featured articles from other Geoscience Journals
Karst environment, Culver D.C.
Mushroom Speleothems: Stromatolites That Formed in the Absence of Phototrophs, Bontognali, Tomaso R.R.; D’Angeli Ilenia M.; Tisato, Nicola; Vasconcelos, Crisogono; Bernasconi, Stefano M.; Gonzales, Esteban R. G.; De Waele, Jo
Calculating flux to predict future cave radon concentrations, Rowberry, Matt; Marti, Xavi; Frontera, Carlos; Van De Wiel, Marco; Briestensky, Milos
Microbial mediation of complex subterranean mineral structures, Tirato, Nicola; Torriano, Stefano F.F;, Monteux, Sylvain; Sauro, Francesco; De Waele, Jo; Lavagna, Maria Luisa; D’Angeli, Ilenia Maria; Chailloux, Daniel; Renda, Michel; Eglinton, Timothy I.; Bontognali, Tomaso Renzo Rezio
Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria), Briestensky, Milos; Rowberry, Matt; Stemberk, Josef; Stefanov, Petar; Vozar, Jozef; Sebela, Stanka; Petro, Lubomir; Bella, Pavel; Gaal, Ludovit; Ormukov, Cholponbek;
See all featured articles from other geoscience journals

Cave and Karst Science, 2009, Vol 36, Issue 1, p. 11-20
Relationships between cave dimensions and local catchment areas in Central Scandinavia: implications for speleogenesis
The caves formed in the Caledonide metalimestones of Central Scandinavia are identified as occurring in three cave hydrological classes that are randomly intermingled with each other both geographically and altitudinally: relict, mainly vadose (MV) and combination caves. The morphology of the relict caves shows that they were enlarged phreatically. Their dimensions of length, cross-section and volume are unrelated to their local catchment area, whose mean size is only 2.6km2. Indeed, large relict caves may be found near ridge tops, and their mean cross-section to catchment area ratio (XS/CA) is as large as 20.3m2km-2. MV caves contain active stream passages and sumps without significant phreatic upper levels or passages. Although there is no simple relationship between their mean dimensions and their local catchment area, which has a mean size of 4.7km2, their mean XS/CA ratio is only 2.8m2km-2. However, their maximum dimensions are constrained by the logarithm of catchment area. The combination caves contain relict phreatic (and, more rarely, relict vadose) passages that lie above an active vadose streamway and they have mean dimensions significantly larger than those of both relict and MV caves. Their mean CA is 4.6km2 (close to that of the other active cave class) and their mean XS/CA ratio is 11.6m2km-2, which is intermediate between relict caves and MV caves. These observations suggest that the active vadose passages developed during the present conditions of the Holocene, with dimensions related to the flow-rates of present allogenic recharge, as supported by likely entrenchment and waterfall recession rates. In contrast, the relict phreatic passages probably enlarged when the caves were submerged by flowing glacial meltwater that was less related to present catchment area, during a previous deglaciation phase. Most relict caves and the whole set of MV caves seem to have each separately experienced only one phase of cave enlargement after inception, with phreatic development favoured at valley shoulder and ridge cave locations and vadose development favoured at valley floors with large catchments. The larger dimensions and greater complexity of the combination caves indicate that they are more representative of the full range of enlargement opportunities that were available during the evolution of their local topography during one or more full cycles of glaciation, deglaciation and interglaciation.