Vztahy krasovych vôd k tvorbe mineralnych a termalnych vôd na Slovensku. (Relation of karst waters to the formation of mineral and thermal waters in Slovakia)
Géographie de l'Europe ; Hydrogéologie ; Karst ; Slovensko ; Tchécoslovaquie
The relations between the circulation of subterranean waters and the formation of Karst are as a matter of fact different. The Slovak territory is by its geographical position, geological and morphological structure a classic region for the study
Crue ; Débit ; Eau d'infiltration ; Eau souterraine ; Ecoulement ; Géographie de l'Europe ; Hydrologie ; Karst ; Prévention des crues ; Régime hydrologique ; Slovensky ; Tchécoslovaquie
The individual possibilities of the inflow of the subterranean and surface waters into the karsted spaces of Jasovska cave occur below the local erosion basis of the Bodva valley. The regime of the subterranean waters of the cave shows the possible
The AA. have studied the chalk karsts of Haute Normandie by comparing microgranulometric spectra of suspended matter (SM), in subterranean waters and in solutions of the main surface formations (Clay-with-Flints Complex (CFC) and loess
) and the Chalk dissolution products of all local stratigraphic levels. Based on these microgranulometric spectra, they propose a conceptual model for processes occurring in chalk karsts and a classification scheme for karstified systems according to how
such systems deal with particles. In a closed karst, the suspended matter tends to come from the Chalk itself, while in the case of an open karst, the majority of suspended particles comes from surface formations.
The complex investigation concerns regularities controling the catastrophic subterranean water inrushes from a paleokarst system into the graphite mine. It was proved that the water accumulations consist of water from local superficial streams
of subterranean erosion are the result of kaolinite dissolution, which intensifies along structural directions, in a region of scarped relief and steep hydraulic gradient. As a consequence, the Furnas Formation displays landforms that are characteristic of a both
. The latter has not penetrated the central part of the gypsum massive of Podolia. Within the limits of the latter, due to the gypsum member viscous flow towards large river valleys a complicated dense network of subterranean holes developed : later
Aquifer ; Carbonate rock ; Drinking water ; Karst ; Nevada ; Palaeoclimatology ; Piezometric level ; United States
, a subterranean air-filled chamber of Devils Hole fissure adjacent to the discharge area of the large Ash Meadows groundwater flow system in southern Nevada. Although different in detail, water-level fluctuation recorded by Browns Room calcites generally correlate
Présentation des résultats de l'analyse 3D des drains souterrains du karst à partir de relevés granulométriques effectués dans l'aven d'Orgnac (Ardèche). Les nuages de points denses obtenus par scannérisation laser ont été maillés et ont permis de
Acción antrópica ; Dióxido de carbono ; España ; Espeleogénesis ; Espeleotema ; Geoquímica ; Gruta ; Karst ; Microclima ; Protección del medio ambiente
environmental changes. The obtained results reinforce the significance of the microclimatic fluctuations on short time scales in the dynamics of the subterraneankarst systems, in terms of rates of mineral precipitation and growth of speleothems, as well
Problems in karst environments in Problems in Karst Environments.
Congrès ; Géographie physique ; Karst ; Symposium sur la géomorphologie du karst tropical (Oxford, 1977)
Six des neuf articles qui composent ce fascicule furent faits à l'occasion du symposium sur la géomorphologie du karst tropical qui s'est tenu à Oxford en septembre 1977.
Glubinnyj, pokrytyj i bronirovannyj karst verhov'ev r. Alakit (Jakutija). (Karst profond, karst couvert et karst cuirassé dans la vallée supérieure de l'Alakit en Iakoutie)
Dal'nij Vostok ; Géographie de l'Europe ; Jakutskaja ASSR ; Karst ; Permafrost ; Rossijskaja SFSR ; URSS d'Asie ; Zone froide
Géomorphologie appliquée ; Karst ; Modelé karstique ; Région ; Turkmenskaja SSR ; URSS d'Asie
Applied geomorphology ; Asian part of USSR ; Karst ; Karstic landform ; Region ; Turkmenistan
2 variétés de karst sont distinguées : les cavités des régions de montagne et celles des plaines. Karst actuel et karst ancien (ouvert et couvert). 3 grandes régions de karst « ouvert » sont distinguées : Kopetdag-Balhan, Gaurdak-Kugitang et Ustjurt
. Carte. Karst « anthropisé » à Kara-Bogaz-Gol où se trouve un gisement de sulfates. La présence du milieu karstique rend son exploitation difficile. - (MMB)
Contemporary karst solution processes on the Tibetan plateau
Asie ; Dioxyde de carbone ; Dissolution karstique ; Haute montagne ; Karst ; Montagne ; Roche carbonatée ; Tibet
Asia ; Carbon dioxide ; Carbonate dissolution ; Carbonate rock ; High mountain ; Karst ; Mountain ; Tibet
Tibet between 4000 and 5000 m a.s.l. has the highest known currently developing karst features. Measurements taken of carbon dioxide pressure (one of the lowest in the world), solubility of Tibetan limestones, and electrical conductivity of karst
waters. Karst solution rates here are affected by the cold arid climatic conditions. - (DWG)
Karst Terrains. Environmental changes and human impact
Calcaire ; England ; Erosion chimique ; Karst ; Météorisation ; Pluie acide ; Pollution ; Propriétés du sol ; Royaume-Uni
Acid rain ; Chemical erosion ; England ; Karst ; Limestone ; Pollution ; Soil properties ; United Kingdom ; Weathering
This paper reviews recent work on the effects of acid rain on building stones and explores its likely effects on karst. The impact on natural karst weathering depends on buffering capacity of the soil.