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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. ...

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That gryke is see grike.?

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KarstBase a bibliography database in karst and cave science.

Featured articles from Cave & Karst Science Journals
Chemistry and Karst, White, William B.
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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;
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Huntsville
Speleogenesis: Evolution of Karst Aquifers, 2000, p. 91-99
The formation of epikarst and its role in vadose speleogenesis
Abstract:
The epikarstic zone differs structurally from the underlying bulk rocks mass, reflecting the higher degree of fissuring and diffuse karstification due to unloading, weathering and dissolution processes that encompass this uppermost layer of exposed rocks. An initial distinction in the permeability between the epikarstic zone and the bulk rock mass below is caused largely by non-dissolutional processes. Contrasts in hydraulic conductivity allows some groundwater storage in the epikarstic zone and flow concentration in its base. Effective vertical leakage paths from the epikarstic zone (major tectonic fissures) commonly need no speleogenic initiation, as they are wide enough to support undersaturated flow through them. Shafts fed by epikarstic recharge represent headwaters of conduit drainage system developed in the deeper parts of a massif. It appears that a large majority of single shafts, several tens of meters deep (the most common feature among explored vertical caves), belong to this type of epikarst-fed shafts. Opening of these shafts to the surface through collapse and subsidence, with subsequent edge smoothing, is probably the main mechanism of doline formation in exposed karsts, rather than gradual preferential lowering of the surface. Therefore, focused karst landforms reflect, through specific mechanisms of epikarst morphogenesis, the permeability pattern of the upper part of the vadose zone.