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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 eccentric is adjective or noun implying abnormal shape in speleothems, such as helictites [10].?

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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 covered karst (Keyword) returned 33 results for the whole karstbase:
Showing 1 to 15 of 33
Karstic Fills in the Clusette Tunnel (Jura of Neuchatel Switzerland)., 1975, Meia Jean, Pochon Michel
The piercing of a road tunnel in the flank of a limestone (Malm) anticline in the Neuchatel Jura uncovered karstic forms transformed for the most part, by decarbonated soils. Mineralogical analysis of these latter, through the use of X-ray diffraction, reveals a great analogy with the surface soils. At more than 200 meters depth, the same allochtone mineralogical suite of aeolian origin which constitutes the largest part of the soils of the High Jura Mountains in Switzerland, is found: an abundance of ferriferous chlorite, and of quartz, plagioclase and potassic feldspar. The various factors favouring this deep infiltration are discussed.

Limestone solution on Bare Karst and Covered Karst compared, 1978, Jennings J. N.

Quelques aspects du karst en Chine, 1985, Tricart, J.
Some characteristic features of karst in China Karst terrain is widespread in China: some 2,000,000km2, corresponding to 20-25% of the whole surface of the country. It occurs at very different altitudes and under quite different climates, from the region of Zhoukoudian, where has been found the skull of the Pekin Man, to the Tibet Plateau, where there is presently permafrost conditions, and up to southern tropical moist China, near Canton and Guilin. Recent chinese investigations have proved that most karst features are old. In Southern China a tropical karst (tower-karst or "mogotes" karst) is associated with lacustrine deposits containing the well-known Hipparion Fauna, of Miocene age. Its predates the intensive uplift of the Himalaya and of the Tibet, which has begun during the Pliocene and has continued during all the Pleistocene. The same fossils have been found in this tropical karst in present permafrost areas, above 5,000m. In the region of Guilin (Guangxi Province), this tropical karst has been described. There is evidence for the former existence of a covered karst, where limestones and dolomitic limestones were covered by a thick layer of reddish residual clays, with limonite. This mantle has been stripped during different periods of drier and probably cooler climate, has suggested by pollen spectra. In some places, these residual products have been trapped into pits, cracks, and caves. We have observed a small quantity of red clay painting limestone stalactites and sinters (Chuanshan and Leng Yin Yen Caves, in the surroundings of Guilin). They present sometimes a mining interest and some extractive industries are presently active (limonite, cassierite, etc.). Many caves have been surveyed by the Institute of Karst geology, in Guilin. Some have been equiped for tourism, around Guilin. All these caves are old. Some radiocarbon dating of speleothems yield ages of 33,000 year BP. The famous carving of the Leng Yen Cave have not been affected by calcite deposition from dripping since at least 500 years. The large caves that have been surveyed should correspond to a long evolution span. Along the Lijiang River, at least two terraces can be observed. They are built with gravels and pebbles, covered with thinner sand and loam, suggesting climatic changes, also attested by the changes of fauna and vegetation. These past cooler periods are characterised by an opened vegetation, with the striping of the old weathering cover of the former tropical karst. These karst terrains have been investigated in China for management purposes. Groundwater oscillations have frequently resulted in land subsidences damaging buildings, and in dramatic collapses destroying fields, roads. Sometimes, underground collapse plugged caves and dammed underground rivers, resulting in floodings. The caves are frequently used as reservoirs for irrigation and power plants.

Des cavits dans la couverture limoneuse des plateaux nivernais (Nivre), 1986, Chabert, C.
CAVES IN THE SOFT COVER OF THE PLATEAUX DU NIVERNAIS (NIEVRE, FRANCE) - North of the Massif Central, around Nevers, the jurassic limestones are covered with a mio-pliocene silt mantle characterised by different caves: collapse dolines in relation with the crypto-karst situated into the underlying limestones and little holes developing in the silt mass (ex.: ponor of Bois de la Grange, length: 11 m). The tertiary mantle and the forests take a prominent part in the regulation and the physico-chemistry of karst waters.

Le karst nivernais : aperu gomorphologique et hydrogologique, 1989, Couturaud A. , Orange A.
The Nivre karst: geomorphologic and hydrogeologic considerations - Western part of Burgundy and southern part of the Paris basin, the Nivernais karst takes from both regions their lithologic and structural features: Middle and Upper Jurassic carbonate formations, monocline structure with horsts and grabens. But its particularity is in the thick superficial formations, that are supporting a wide mantle of forest, and that determine its morphology, its hydrodynamic and its hydrochemistry. The karst area is distinguished by closed depressions and by the abundance of valleys. The penetrable cavities are scarce and of a little extension, and are principally underground streams. The study of the hydrodynamic and the chemistry of some springs have shown the complexity and the variability of the dynamic of the karstic systems that depends essentially on the superficial formations.

Morphologie et hydrologie d'un karst couvert : le rseau de Ziaka (Bas-Zare), 1989, Quinif Y. , Dupuis C.
Morphology and hydrology of a covered karst: the Ziaka cave-system (Lower Zare) - In the middle of the Lower Zare karst, Ziaka cave constitutes the emergence of a great flooded karst. Divers have explored several flooded galleries. The cave shows very characteristic morphology of flooded karst: coupolas, bedding-plane anastomosis. The river deposits of the Kwilu cover the limestone. The karst is capped and artesian, its water table is higher than the base level of the Kwilu.

Specific chemical composition of karst groundwater in the Ophiolite Belt of the Yugoslav Inner Dinarides: A case for covered karst, 1990, Kresic Neven, Papic Petar,

Origin of Eocene-covered karst bauxites of the Transdanubian Central Range (Hungary); evidence for early Eocene volcanism, 1992, Dunkl I,

Observations morphologiques sur le gosystme karstique du Rupt du Puits (Meuse, Lorraine), 1995, Jaillet S. , Gamez P.
The karst system of Rupt-du-Puits is situated east of the Paris basin (Barrois and Perthois), in the Portlandian limestones covered by sands and clays of Lower Cretaceous. It presents 21 km of surveyed passages in several networks (catchment = 13 km2). In this typical covered karst (cryptokarst), we observe two kinds of alimentation: rapid (swallow holes) and slow (wet soils). On the exokarst, the valleys move by retreat of swallow holes and karst stepping. In the endokarst, the variations of the base level determine several stages of stream piracy (elbows of capture). The karst morphology depends on climatic changes and the evolution of the drainage pattern during the Upper Pleistocene.

Symposium Abstract: Autogenic sediment transmission to caves - A revised model from a drift covered karst, Castleton, Derbyshire, 1996, Hardwick P.

Principal features of evaporite karst in Canada, 1997, Ford Dc,
Outcrops of sulfate arid mixed sulfate-carbonate rocks are common everywhere in Canada outside of the Shield province. Interstratal salt deposits are abundant in the interior lowlands. Types of karst that occur are determined chiefly by relations between (i) formation thickness and purity, (ii) regional topography and hydraulic gradient (iii) effects of receding Wisconsinan and earlier glaciers, and (iv) extent of modern permafrost. Exposures of bare karst on thick, pure sulfate formations are comparatively rare. Two principal landform types found on them are: (1) high-density polygonal karst (micro-sinkhole densities of thousands per km(2)); where hydraulic gradients are high and tills are thin; (2) hills and ridges of blocks uplifted and fractured by hydration (anhydrite) tectonics at paleo-icefront positions where hydraulic gradients are low. Deeply till-mantled karst dominated by collapse and suffosion sinkholes in the mantling detritus is well developed in southwestern Newfoundland and in central and northern Nova Scotia. Covered karst is abundant on sulfates conformably overlain by carbonate br elastic strata; collapse sinkholes ale the principal landform. Very large breccia pipes (up to 25 x 15 km) ale associated with deep subrosion of salt during glacier recessions. Syngenetic breccia karst is a fourth, distinct category created in some formations of thin, interbedded dolostones and sulfates. Where these are exposed td high hydraulic gradients, deep calcite-cemented breccias were formed in a first generation, upon which sinkhole and pinnacle karsts and dissolution drape topographies were able to develop rapidly in late-glacial and post-glacial conditions

L'halloysite karstique; comparaison des gisements types de Wallonie (Belgique) et du Perigord (France), 1997, Perruchot A. , Dupuis C. , Brouard E. , Nicaise D. , Ertus R. ,
Two cryptokarstic (covered karsts) halloysitic deposits were compared: the Entre Sambre et Meuse in Belgium and the Perigord in France. Both belong to a continental margin subject to marine transgression and regression cycles which enhance the karstic activity. This geodynamic context appears to be very favourable to the formation of halloysite. The similarity of the geodynamic context of both sites leads to a genetic convergence linked to specific properties of the cryptokarstic system, especially, the ability to collect the percolating waters and to juxtapose the conditions of precipitation, accumulation and maturation of the halloysite silico-aluminous gel precursors. However, each site also displays pronounced specificities relevant to: the nature of the host rock of the halloysite (a partly silicified limestone in the first, a smectite-kaolinite argilite in the second); the aluminium source (allochthonous in the first, relatively autochthonous in the second); and the halloysite content of the deposits (of approximately 100% in the first, and 40% maximum in the second)

Karst in Enclosing Rocks of Kimberlite Diatremes on the Siberian Platform , 1998, Filippov, Andrej G.

Karst is widely developed in enclosing carbonate rocks of kimberlite diatremes in Yakutia. The Lower Silurian, and Lower and Middle Ordovician marine carbonate and carbonate-terrigenous rocks were exposed to karstification. The age of the forms is Middle and Upper Carboniferous, Cretaceous-Paleogene, Neogene-Quaternary and Quaternary. Karst forms are found on different elements of macro-relief, such as the top part of high plateaux armoured by traps, high plateau slopes, low carbonate plateaux. With respect to elements of meso-relief, karst has developed in watersheds, valley slopes, and under the bottoms of valleys.

Structures tectoniques et contraintes de cheminement des eaux dans les aquiferes karstiques du barrois (Lorraine/Champagne, France), 1999, Devos A, Jaillet S, Gamez P,
Between Lorraine and Champagne, in the east of the Paris Basin, covered karst is developed in Portlandien limestone of Barrois in contact with sand and clay of the Perthois Cretaceous. The cuesta landscape is altered by folding tectonics (syncline of Treveray) and faulting tectonics (fault trough of the Marne). These govern the organization of underground flow. In low water period, hydrological methods (smoothed hydrological profiles, water tracing) display disturbances of the Barrois river (Saulx, Marne) and limits of underground watershed ('Rupt-du-Puits' cave system, 21 km long, 13 km). Macro-tectonics influence vertical infiltration (pit). Fault and dip (Macro-tectonics) divide the aquifer into different sections. Hydrological methods with flow studies confirm structural tilting of the area to the west.ResumeEntre Lorraine et Champagne, dans l'est du Bassin parisien, au contact des calcaires portlandiens du Barrois et des sables et argiles cretaces du Perthois, se developpe un karst couvert. Le paysage de cotes est ici perturbe par une tectonique souple (synclinal de Treveray) et cassante (fosse d'effon-drement de la Marne) determinant l'organisation spatiale des ecoulements. En periode d'etiage, les methodes hydrologiques (profils hydrologiques lisses, tracages), permettent de montrer l'influence de cette tectonique d'ondulation et de basculement sur l'ecoulement des rivieres barroises (Saulx, Marne). Fractures et microfractures influencent la zone de transit vertical des eaux du karst (zone des puits) tandis que les failles compartimentent les aquiferes (systeme du Rupt-du-Puits, 21 km de conduits, 13 km2). Les methodes d'etudes hydrologiques, confirment le basculement de la region vers l'ouest deduit des comparaisons de nivellement

Reconstruction of the development history of karstic water networks on the southern part of the Gšmšr-Torna karst on the basis of ruined caves and landforms, 1999, Já, Nos Mó, Ga

The author demonstrates the surface development of the Gomor-Torna karst situated on the Hungarian-Slovakian border from the Tertiary until the present day. He follows the process of transition from the covered karst conditions to the open karst on the karst plateau, and its effect upon the landforms and the karstic water network. He studied the evolution of surface and sub-surface water networks, and the regularity of the movements of underground rivers based on water tracing. He reconstructed the ancient surface outflow directions of the covered karst from the scarce remains of the epigenetic valleys inherited from cover deposits onto the limestone surface, from ruined swallow hole lines in valleys, as well as from decaying water conducting tubes generated in earlier phases.

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