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Enviroscan Ukrainian Institute of Speleology and Karstology


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Community news

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 karst inselberg is a residual hill of soluble rock in a polje [20]. synonyms: (french.) inselberg karstique; (german.) karstinselberg (hum, mogote); (greek.) karstiki martyres lophi; (italian.) rilievo carsico residuo; (russian.) karstovy ostanec; (spanish.) relieve kastico residual; (turkish.) karst tepesi; (yugoslavian.) hum.?

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.
See all featured articles
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

Search in KarstBase

Your search for trias (Keyword) returned 135 results for the whole karstbase:
Showing 1 to 15 of 135
Triashhlen und Knochenbrekzie mit Nothosaurus bei Olkusz (Krakau-Tschenstochauer Jura)., 1961,
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Wojcik, Z.
[Polen]

Triashhlen und Knochenbrekzie mit Nothosaurus bei Olkusz (Krakau-Tschenstochauer Jura), 1961,
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Wojcik, Z.

Karst-like features in badlands of the Arizona Petrified Forest, 1963,
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Mears Brainerd,
Sinks, disappearing streams, hanging valleys, and natural bridges add a karst-like element to the miniature mountain topography represented in badlands. The Chinle Formation [Triassic] of the Petrified Forest in Arizona largely consists of compact, montmorillonitic and illitic claystones. Sinks in it result from disaggregation of swelling clay minerals rather than solution which affects limestone in true karsts. Ravines whose bottoms are pierced by sinks may develop into hanging valleys because their channels, robbed of surface flow downstream from these swallow holes, cannot keep pace with downcutting in the master drainage to which they are tributary. Growth of the sinks soon creates a disappearing stream that continues to deepen the upstream segment of a ravine. Thus the abandoned downstream segment beyond the sinks, no longer eroded by the stream, develops into a transverse barrier. Where the abandoned channel was initially short, the barrier may be eventually narrowed by weathering and slope erosion to form a natural bridge. Other bridges consist of jumbled material. that has collapsed from steep valley walls, undercut by small stream meanders

Hydrological and chemical investigations of running waters of the Schlitzerland (Western Germany). A. Springs, I. Survey., 1976,
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Brehm Jorg
In a Triassic sandstone woodland (Schlitzerland in Hesse, Western Germany) 17 springs were hydrologically and hydrochemically investigated throughout one year (April 1973; April 1974). Measurements were carried out on water volume, temperature, electrolytical conductivity, pH, aikalinity, chlorinity, dissolved molecular oxygen, dissolved organic material (COD), ammonia, nitrite, nitrate, and free phosphate. Among the hydrochemical factors investigated the pH-value was closely related especially to the micro-climate in the spring drainage area. In particular the pH rose both with increasing length of the drainage area and within the same spring with decreasing water supply. On the other hand the pH-value diminished with increasing altitude of the drainage area. Simultaneously the highest values were found on SW-slopes and the lowest ones in NE-exposures.

Karst development and the distribution of karst drainage systems in Dejiang, Guizhou Province, China, 1983,
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Song Linhua, Zhang Yaoguang, Fang Jinfu, Gu Zhongxong,
The nature of karstification of two contrasting areas on the north Guizhou Plateau (south China) is shown to be controlled by structure, lithology, geomorphic history and tectonics, and causes significant differences to arise in the subsurface drainage systems of the areas.The Shaqi area lies in a syncline of Permo-Triassic limestones underlain by an insoluble sandy shale which forms the local base level. Karst landforms are strongly influenced by the presence of four erosion levels corresponding to four periods of rejuvenation of the drainage systems. Drainage is concentrated along the syncline axis, and one system (Naoshuiyan) has been pirating another (Lengshuiyan) by headward retreat. Cave passages are typically phreatic.The Dejiang Town area lies in an anticline of Cambrian dolomite and Ordovician limestone. Three large subsurface drainage systems have developed along parallel faults, and have typically vadose cross-sections

Hydrogologie karstique des Alpes-Maritimes, 1984,
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Baissas, P.
Karst hydrogeology in the Alpes-Maritimes - In the Marguareis, the systems penetrate very quickly by transverse faults, to reach the impermeable basement and then follow the dip. All the waters, even those on the French side, belong to the P basin. In the Roya arc, underflows are to be found going round the base of the Argentera-Mercantour. In the Nice arc, the karstification depends principally on tectonic factors and according to the places, the water follows either the overlaps or transverse faults. In the Grasse plateaus, the galleries follow at the outset the slopes and the dips of the synclinal hinges; the tectonic factors determine the location of the resurgences ; at depth, the karst is always phreatic, with relations between tectonic compartments during floods. In the cover of the Tanneron-Esterel basement and Barrot Dome, lithological factors determine flow.

Traits gnraux de l'hydrologie karstique en Basse Cvenne, 1984,
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Fabre, G.
GENERAL FEATURES OF KARSTIC HYDROLOGY IN BASSE CEVENNE (FRANCE) - N to the town of Als (SE Massif Central and Cvennes), a very fractured carbonated belt outcrops. The karst concerns some facies of Trias, Lias-Dogger, Upper Jurassic and Lower Cretaceous. Karstic flows are of two types: toward W, convergent to the important springs of la Tour-Dauthunes, and toward E and divergent. Ggeneral characteristics are presented. Economic aspect is pointed out, just as karstic stream piracy.

Les palokarsts des Alpes occidentales du Trias l'Eocne, 1984,
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Guendon, J. L.
WESTERN ALPS PALEOKARSTS FROM TRIASSIC TO EOCENE - In western Alps, before complete emersion during the Oligocene and Miocene, the marine sedimentation has been locally interrupted by three important continental phases: 1/ during Early Jurassic, in "brianonnais" domain; 2/during middle Cretaceous, in Provence area; 3/ during early Tertiary, in subalpine range and Jura. These locally and temporary regression are the consequence of tectonic activities in relation to the movements of eurasiatic and italo-african plates, which are at the edge of the alpine oceanic basin (Tethys). After an abstract on the tectonic and sedimentological history of western Alps, a description is given of continental formations (bauxites, fire-clay, clay with flints, siderolitic formations, white and ochrous sands, siliceous and ferruginous crusts) and karst phenomena elaborated during these regressions.

Hydraulic structure of karst-fissured Triassic rocks in the vicinity of, Olkusz (Poland), 1984,
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Motyka Jacek, Wilk Zbigniew

Hydrogologie karstique du polj d'lrmene, Bodrum (Turquie), 1985,
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Canik, B.
KARSTIC HYDROGEOLOGY OF THE IRMENE POLJE - BODRUM (TURKEY) - The Irmene polje (25 km2) is located in the Bodrum peninsula, Turkey. The formation exposed, are coloured argilaceous schists, blackish shales and sandstones of a paleozoic age. They are overlapped by unconformable carbonate formations of Early Triassic to Late Jurassic. The karstification is mostly developed on the non-dolomitic parts of the fissured limestones. The groundwater flow is generally northwards, towards coastal or submarine springs. Thus, it is calculated that a discharge of about 40 l/s can be obtained from possible wells to supply water for the Irmene village. We propose to increase the infiltration rate within the karstic aquifer by building barriers, which would favour runoff towards natural wells or sinks not active for the moment.

Les karsts de gypse italiens ( propos du Symposium inter-national sur les karsts des vaporites), 1986,
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Choppy, J.
ITALIAN GYPSUM KARSTS - Synthesis of field observations and bibliographic data on shallow and deep gypsum karsts in Italy; these karsts are located in Trias (Emily) and in Messinian (continental Italy, especially near Bologna, and Sicily). The author describes clints of Sicily, the features of erosion and filling in underground caves.

Les aiguilles de gypse du Verneau (Doubs), 1986,
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Couturaud, A.
THE GYPSUM NEEDLES OF THE VERNEAU SYSTEM (DOUBS) - These crystals are both exceptionally long (up to 225mm) and very well preserved. They were discovered on the floor of an old choked passage close to a large gallery and a collector. They appear to have grown during a flooded period where the Triassic or paleokarstic gypsum was re-dissolved.

Palokarst palozoque en Antarctique, 1986,
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Maire R. , Laurent R.
PALEOZOIC KARST IN ANTARCTICA - Karst features in Antarctica have been rarely observed. In their study on the geology of the Beardmore Glacier area in the Transantarctic Mountains (south of Ross Ice Shelf), BARRET and al. (1968) describe a pre-glacial karst topography (Mt. Counts) and especially a former cave (diameter 10 m) 10 m below the erosion surface and filled with coarse green sandstone. Shaped in the "Shackleton limestone" (Low to Middle Cambrian) probably during the Permo-Carboniferous (hercynian cycle), this karst is fossilised by the Pagoda formation, a permian tillite of the Beacon sequence (Devonian-Permian- Triassic).

Le karst du compartiment oriental de la basse Cvenne carbonate (Gard), 1988,
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Martin, Ph.
The karst of the Eastern compartment of the carbonated Lower Cvenne (Gard) - This text summarises 10 years of exploration and study of the eastern karst of the Gardon river basin above Als. Karst concerns 5 facies: Trias, Hettangian-Sinemurian (rich in limonite and pyrites), Upper Bajocian - Lower Bathonian (rich in pyrites), Upper Jurassic and Barremian. This lager is broken into more or less rolling panels, which have collapsed towards the Als rift. Tridimensional systems draining this karst are considered to be evolving toward better performance. It is a remarkable case of natural organisation. Structure is deduced from function. A morphologic approach explains the systems history. Three of the four identified karstic systems are simple. They are partial a natural models of the fourth: the Fonts karstic system. We describe on detail some elements of its structure (caves for ex.) and of its functio-ning (hydrodynamic, hydrochemistry). We show through pumping that the Cauvel river feeds the Fonts spring and the Carabiole spring. The effect of geological and geomorphologic characteristics of the spring site on water output is mentioned. We describe the realisation of a pumping station driving subterranean Cauvel river water a 100m back and point out the usefulness of speleological information.

Triassic Palaeokarst in Britain, 1990,
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Simms M. J.

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