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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 straw stalactite; straw is 1. the simplest form of stalactite - a fragile, thin walled tube, normally of calcite, which is the diameter of the drops of water that hang from its end and continue its growth. though only about5mm in diameter, straw stalactites (or straws) may grow to great length in clusters of spectacularly dense profusion, more commonly in caves of cooler climates. the length record may be held by a 6m straw in easter cave, western australia. also known as straw stalactite or soda straw [9]. 2. thin tubular stalactite, generally less than a centimeter in diameter and of very great length (examples as long as 4 meters); also called soda straw [10]. see also soda straw; stalactite.?

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;
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Your search for eustacy (Keyword) returned 3 results for the whole karstbase:
The Upper Jurassic stratigraphy and the facies development of the Dinaric carbonate platform of Slovenia (northwest Yugoslavia) are compared with the Jura carbonate platform of southern Jura (southeast France). The similar facies development between the two platforms during the Kimmeridgian and the Tithonian, as well as a pronounced discontinuity in the same stratigraphical position (controlled by dasycladacean algae and/or ammonites), made it reasonable to correlate the two regions. This discontinuity is marked by a bauxite horizon and a karst breccia in south Slovenia (inner platform), and by a black-pebble conglomerate (inner platform) and a reef breccia (outer platform) in the southern Jura. These features are interpreted as type 1 sequence boundaries related to a global fall of sea level. In southern Jura, biostratigraphical elements situate the sequence boundary between the Eudoxus and the <> ( = Elegans) zones, most probably at the end of the Beckeri ( = Autissiodorensis) zone. Integrating this discontinuity into the eustatic sea level curve proposed by the Exxon group (version 3.1) is difficult because the only suitable sequence boundaries, SB 139 and SB 142, are respectively too young (younger than the <> zone) or too old (older than the Eudoxus zone). We therefore suggest to introduce a new sequence boundary within the upper part of the Beckeri zone which would correspond to a <> sequence boundary SB 140. The investigations further show that Clypeina jurassica FAVRE and Campbelliella striata (CAROZZI) BERNIER most likely appear in the Beckeri zone in the realm of the Jura carbonate platform. The same dasycladacean algae assemblage defines a cenozone identified as <> in Slovenia. It therefore seems possible to correlate the stratigraphic limit between <> and <> of the Dinaric carbonate platform with the beginning of the Beckeri zone

Formation des rseaux karstiques et creusement des valles : lexemple du Larzac mridional, Hrault, France, 1997, Camus, Hubert
The Causses and mediterranean Garrigues present a long continental evolution from late Cretaceous. The karstic network analysis and the dynamic study give geomorphological indicators to reconstruct the paleogeography of this area when the geological indicators are not present. The paleoclimatic action and the tectonic movements make the actual landscape melting a lot of ages and genesis different elements. The endokarst preserves sedimentological and paleoclimatic witnesses and also hollowing shapes that traduce the successive steps of the paleogeographic evolution. The network's levels of the South Larzac are connected with the landscape karstic forms : poljes, canyons, peripheric valleys. The reef limestone of the Seranne and the dolomite of the Monts de St-Guilhem explain this good conservation of the endokarst and of the landscapes.

The beginning, development and termination of the Middle Miocene Badenian salinity crisis in Central Paratethys, 2006, Peryt Tadeusz Marek,
Middle Miocene Badenian evaporites of the Carpathian region are underlain and overlain by deep-water deposits, the onset of evaporite deposition was sudden but not synchronous in all facies zones and the deposition of evaporites was controlled by the evolution of Carpathian orogen. In the Carpathian Foredeep (and most probably in other basins) the Badenian evaporites represent the lower part of the NN6 zone. Halite and associated deposits in the central part of the Badenian evaporite basin show the same facies successions and marker beds can be traced across and between individual basins. Characteristic marker beds made it possible to correlate various facies zones of the marginal Ca-sulfate platform. These marker beds seem to reflect events that may be related to sudden and widespread changes in water chemistry, which in turn imply major changes in basin hydrology. The onset of the evaporitic deposition in the Carpathian Foredeep was clearly diachronous and the evaporites deposited in the basin centre preceded the beginning of evaporite sedimentation in the marginal basin, however, depositional history in the marginal basin and the basin centre was the same. A general transgressive sequence of evaporites found in the Carpathian Foredeep resulted from the migration of facies zones induced by the nappe movement.Isotopic studies of Badenian foraminifers occurring below evaporites suggest that the interrupted communication of the Paratethys with the ocean was a consequence of eustatic sea-level fall, possibly related to climatic cooling, and it was coupled with a tectonic closure of connection with the Tethys. Thus both tectonics and eustacy have contributed to the origin of salinity crisis. Sedimentological and geochemical data indicate recycling of evaporites throughout most of the evaporite deposition. The recycling at the end of gypsum deposition in the marginal sulfate platform was accompanied by a change in the hydrology of the Central Paratethys that was tectonically-driven, and possibly related to the block tectonic phase manifested in the marginal part of the Carpathian Foredeep Basin. The change in hydrology implied the dilution of brines by inflowing marine water and this terminated the Middle Miocene Badenian salinity crisis. The onset of the Badenian salinity crisis shows great similarities to the onset of the Messinian salinity crisis and the terminations of both crises were different

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