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Enviroscan Ukrainian Institute of Speleology and Karstology

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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 backflooding is 1. temporarily rising water level in a cave caused by downstream passage being too small to pass an abnormally high discharge. the excavation and reexcavation of some caves is ascribed to the enlargement of a passage at or near the water table by gravity flow alternating with periods of calcite precipitation [10]. 2. flooding due to backup of excess flow behind a constriction in a major conduit. water that is ponded in tributary passages and proto-caves upstream of the constriction may contribute to the enlargement of maze caves [9].?

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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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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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BCRA
Cave and Karst Science, 2007, Vol 34, Issue 2, p. 69-76
Flow capture and reversal in the Agen Allwedd Entrance Series, south Wales: evidence for glacial flooding and impoundment
Abstract:
Detailed observations of passage morphology, scallop orientations, and cross-cutting relationships of vadose notches and roof heights within a small area of the Agen Allwedd cave system, south Wales, reveal a complex history of flow re-routing linked to several successive phreatic-vadose cycles. At least three discrete phases of phreatic development can be recognized, each succeeded by a period of vadose entrenchment. Two distinct episodes of flow diversion are evident and were initiated during separate phreatic phases. The repeated establishment of phreatic conditions at such a high level within the cave system can be attributed either to glacial impoundment of meltwater recharge and/or the creation of a localized perched phreas as a result of temporary blockages. We conclude that glacial meltwater from the Usk valley glacier entered the cave along its northern edge and was impounded as a result of valley glaciers blocking lower outlets, causing flooding of the entire cave system during glaciations. Vadose entrenchment then occurred as much of the cave was drained during ensuing interglacial(s). Drainage rerouting occurred in response to temporary, but prolonged, blockages that allowed meltwater recharge to generate high hydrostatic pressures. Newly opened or exposed fractures in the limestone were thereby exploited, creating bypass routes. This model, which is consistent with what is known of ice depths across the region during the Pleistocene, has significant implications for the evolution of the entire cave system and indeed for other caves in broadly analogous situations in south Wales and beyond.