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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 radioactive tracer is a tracer used in hydrological direction and velocity determinations [16]. the two most common types are tritium and deuterium.?

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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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Your search for aveyron (Keyword) returned 6 results for the whole karstbase:
Rpartition quantitative des phnomnes karstiques super-ficiels et souterrains en fonction de la lithologie sur le Causse Comtal (Aveyron, Fr .), 1983, Dodge, D.
QUANTITATIVE DISTRIBUTION OF THE SURFICIAL AND UNDERGROUND KARSTIC PHENOMENA ACCORDING TO LITHOLOGY ON THE CAUSSE COMTAL (AVEYRON, FRANCE) - The quantitative distribution of karst phenomena (dolines, karren, dry valleys, springs, sinkholes and caves) in the Causse Comtal aquifers is analysed. This distribution is dependent on lithology, topography, tectonics, and permeability of the aquifer layers and relative importance of underground drainage networks. The part played by each of these factors in the development of the observed phenomena is discussed. The relationship between superficial and deep karst features is examined.

Prsentation du Causse Comtal (Aveyron), 1987, Solier, P.
THE " CAUSSE COMTAL " (AVEYRON, FRANCE): GEOLOGY, HYDROGEOLOGY AND INVENTORY OF MAIN CAVES - The " Causse Comtal " (S = 265 km2) forms a sedimentary bridge between the " Causses du Quercy " in the west and the " Grands Causses " in the east. With a middle humid climate (P = 1000 mm/y, T = 9,4 C, Evap. = 450-500 mm/y), this plateau karst presents two aquifer levels in the Lower and Middle Jurassic separated by a marly layer. These formations cover a paleozoic basement (sandstone, argillite from Carboniferous and Permian, crystalline rocks). The hydrogeological basins are controlled by E-W reverse faults due to the N-S pyrenean compression. The main spring is near Salles-la-Source in the western part (average discharge: 840 l/s; flood : 10 m3/s); it drains a 50-55 km2 area. The morphological and speleological evolution is subordinated to an erosion surface from Upper Cretaceous - Tertiary. Often stopped up (blocking), the numerous fossil caves probably date from the end of Cenozoic era. The large subterranean passages (active or semi-actives galleries; ex.: Tindoul de la Vayssire) are plio-quaternary.

Prsentation des principales cavites du Causse de Laissac-Sverac (Aveyron), 1990, Rigal, C.
PRESENTATION OF THE MAIN CAVES OF THE CAUSSE OF LAISSAC-SEVERAC (AVEYRON, FRANCE) - The causse of Laissac-Severac is situated between "Grands Causses" and "Causse of Sauveterre" (Aveyron), in limestones and dolomites of Lias and Middle Jurassic. This speleological area presents two kinds of karst systems: losses and resurgences at the contact of the crystalline massif (Levezou) on the south part (Clos del Pous = 3km), and caves with numerous sumps under the Causse of Severac on the north part (plateau with large depressions (Tantayrou = 3.1km). These caves are post-Miocene because of the dated volcanism; they cut an eogene paleokarst, which is characterised by ferralitic paleosoils (ferruginous sandstone called "Siderolithique") from the alteration of crystalline massif.

Lutilisation des rserves hydrauliques karstiques : lexemple de la commune de Penne-de-Tarn, 1999, Bou, Claude
Water collecting in the commune of Penne was meant to offer an option to the polluted and scarce water resources of the liasic limestone aquifer layer through a planned and reasonable exploitation of the Jurassic reserves. Three underground streams actually supply the whole commune territory - the largest in the Tarn department - with good water which does not suffer any summer depletion. The civil engineering work, the electro-mechanical fittings, the proper fixtures which followed the preliminary surveys were made by unpaid amateur cavers from several clubs of the caving district committee gathered in the ATEK (Association Tarnaise d'Etudes Karstiques). Different methods and techniques have been used to collect water on the following three sites: - the underground stream of Cabeou and the building of a storage dam of 500 m3 which was put into service in 1984 on the limestone plateau of the Garrigue; - the undergroung stream of Amiel where a 25 meter deep well was drilled through hard rock and which has supplied the village with water since 1985; - and the underground stream of Madeleine whose pumping station protected by a dam has increased the water resources of the right bank of the Aveyron river since 1989.

Reconstitution morpho_lo_gique du Causse du Larzac (Aveyron, France), rle des formations superficielles dans la morphogense karstique, 2001, Bruxelles, Laurent
The study of post-Jurassic deposits, superficial formations which stay on the plateau or are preserved in caves permits us, together with the morphologies of landscape, to reconstitute the main steps of morphological evolution of this part of the Larzac. In particular, the discovery of numerous witnesses of cretaceous cover, marine and continental, let us know the first morphogenesis of the Grands Causses. After the bauxite episode, coniacian transgression fossilized a differentiated palaeotopography under one hundred meters of sandy limestone. After, the erosion of this deposits and the transit of various alterites, allogene or autochthonous, show further morphological steps. Theses formations can constitute a real cover and contribute to the development of karstic levellings. Residual formations, associated with levels of shelves, regulate lowering of karstic surface between Eocene and Miocene, before the canyon digging and the development of karstic recules. Then, between Miocene and Quaternary, karst declogging changes radically the evolution of the plateau surface and let appear poljes, dolines and underground network. Only some specific areas can keep their cover of alterites and maintain, temporally, an old functioning.

Formes et formations superficielles de la partie ouest du Causse de Sauveterre (Grands Causses, Aveyron et Lozre), 2007, Bruxelles Laurent , Simoncoinon Rgine, Guendon Jeanlouis, Ambert Paul
MORPHOLOGY AND SUPERFICIAL FORMATIONS OF THE WESTERN PART OF THE CAUSSE DE SAUVETERRE (GRANDS CAUSSES, AVEYRON AND LOZ?RE, FRANCE). In 2002, the Natural Regional Park of Grands Causses has coordinated a hydrogeological study of the western part of the Causse de Sauveterre, the northernmost of the Grands Causses. A multidisciplinary approach (geology, geomorphology, geochemistry and hydrology) was used to delineate the catchment area of the main springs and to estimate the vulnerability of karstic aquifers. The Grands Causses are situated in the southern part of the French Massif Central. The landscape is characterised by huge limestone plateaus cut by deep canyons. The morphologic study of the western part of the Causse de Sauveterre (Causse de Massegros and Causse de S?v?rac), combined with analysis of superficial formations, allows us to identify the main steps of landscape evolution. The discovery of bauxite and of many outcrops of Upper Cretaceous sandstone confirm that the Coniacian ingression invaded some paleo-landscapes developed within a long period of continental evolution which was initiated at the end of the Jurassic. During the Tertiary, many residual formations form covers of the limestone plateaus. We can distinguish alterites developed from different formations of the stratigraphic series (clay with cherts from Bajocian, dolomitic sand from Bathonian and Callovian, sandy clays from Cretaceous deposits) from some allochtonous deposits which can be found in some parts of the Causse de Massegros. These formations are found in association with morphological features (shelves, polj?s, fluvio-karstic valleys, sinkholes) and are more or less responsible of their development. Furthermore, some volcanic rocks cut through or even reused some of them. With the deepening of canyons and the base level drop, horizontal morphologies are preserved only where superficial formations are abundant and thick enough to maintain crypto-corrosion. Elsewhere, karst unplugging removes most of the superficial formations, and the karstic evolution tends to show a vertical development of morphologies and caves. Some springs, which benefit from a favourable lithologic, structural and hydrologic context, are more competitive and expand their catchment area at the expense of the other springs. Many superficial features express this dynamism on the plateau and allow us to determine the most sensible areas for water pollution and the most fragile ones for human activities.

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