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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. ...

Did you know?

That diffuse circulation; diffuse flow is circulation of ground water in karst aquifers (or other aquifers) under conditions in which all, or almost all, openings (primary and secondary) in the karstified rock intercommunicate and are full of water but have not been selectively enlarged in specific zones by dissolution, and so thus no concentration of ground water occurs in restricted conduits [9, 21]. the ground-water flow is generally slowmoving, may be laminar, and have a uniform discharge and slow response to storms. it is being replaced by the term, slow flow, because significant confusion regarding its usage especially when thought of as in terms of porous-media flow. synonyms: (french.) circulation diffuse; (german.) diffuse grundwa.erbewegung; (greek.) thiacheomenon ydhor; (italian.) circolazione carsica diffusa; (spanish.) circulacion saturada difusa; (turkish.) yaygn dolasim; (yugoslavian.) difuzno tecenje.?

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

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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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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

Original article

Die Hoehle, 2008, Vol 59, Issue -3, p. 26-36
Kryogene Karbonate im Höhleneis der Eisriesenwelt
Abstract:
Progressive freezing of calcium- and bicarbonate- bearing cave waters can give rise to high supersaturation and the subsequent precipitation of microscopic calcite crystals and aggregates thereof. These particles are disseminated in the ice of ice caves and may later be concentrated by sublimation or melting of ice to form thin carbonate beds in layered ice (cryogenic carbonates). Such white to light brown, silty to fine sandy layers occur in the rear of the ice-bearing part of the Eisriesenwelt cave (Werfen, Salzburg) and were previously regarded as finely disintegrated limestone powder derived from the cave ceiling. Studies using scanning electron microscopy show that this material consists of 30-200 ?m aggregates of euhedral crystals, which, according to powder Xray diffraction analyses, are near-stoichiometric low-Mg calcite. The crystal aggregates commonly show a conspicuous flat top and resemble larger floating calcite rafts known from calcite-precipitating pools in ice-free caves. There are gradual transitions between these aggregates and skeletal crystal aggregates and (hemi)spherulitic forms, respectively. The small particle size and the skeletal crystal habit strongly argue in favour of rapid crystal growth during freezing of shallow puddles of icy water. This interpretation is corroborated by the highly positive C isotope values, which, in conjunction with the O isotope data, prove the cryogenic origin of these carbonates. The proportion of detrital contamination is very low. This study is the first report of fine-grained cryogenic speleothems in an eastalpine cave. It is supposed that such sediments are more wide spread and thicker layers may represent important paleoenvironmental marker horizons.