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Speleology in Kazakhstan

Shakalov on 11 Jul, 2012
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 Also we have forum there. ...

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 water of crystallization is water embodied in crystal structure [16].?

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.

Latest news:

Website of the Center of Studies on Subterranean Biology
Dr. Rodrigo Lopes Ferreira of Brazil has announced the launch of the website of the Center of Studies on Subterranean Biology.
New US Karst Map available
The new karst map (digital) of the USA is released by the US GS
September 2014 Friends of Karst meeting in Arkansas
An announce for the Friends of Karst meeting this fall in Arkansas
Faculty position for physical hydrogeologist
West Virginia University is looking for a new Physical Hydrogeologist at at the Assistant Professor level
2015 Sinkhole Conference: call for abstracts
The call for abstracts for the 14th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, Rochester, Minnesota, October 2015.

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Did you know?

That naked karst, bare karst is karst topography developed beneath a temporary cover. some naked karsts develop beneath a temporary cover of snow (nival karst) or water [17]. synonyms: (french.) karst nu; (german.) oberflachlicher nackter karst; (greek.) gymnon karst; (italian.) carso nudo; (russian.) goly karst or otkryty karst; (spanish.) karst desnudo; (turkish.) ciplak karst; (yugoslavian.) goli krs. see also exposed karst.?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms

Featured articles from Cave & Karst Science Journals
Interpretation of hydrogeological functioning of a high karst plateau using the KARSYS approach: the case of Trnovsko-Banjška planota (Slovenia), Turk Janez, Malard Arnauld, Jeannin Pierre-Yves, Vouillamoz Jonathan, Masini Jean, Petrič Metka, Gabrovšek Franci, Ravbar Nataša, Slabe Tadej
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Featured articles from other Geoscience Journals
RADON, CARBON DIOXIDE AND FAULT DISPLACEMENTS IN CENTRAL EUROPE RELATED TO THE TO HOKU EARTHQUAKE, Briestensky´, M.; Thinova, L.; Praksova, R.; Stemberk, J.; Rowberry, M. D.; Knejflova´, Z.
See all featured articles from other geoscience journals

Featured article from geoscience journal

Willey-Blackwell
Earth Surface Processes and Landforms, 2010, Vol 36, Issue 2, p. 143-157
On the formation of dissolution pipes in Quaternary coastal calcareous arenites in Mediterranean settings
Abstract:

A large number of uniform cone-shaped dissolution pipes has been observed and studied in Quaternary coastal calcareous arenites in Apulia and Sardinia (Italy) and Tunisia. These cylindrical tubes have a mean diameter of 52·8 cm and are up to 970 cm deep (mean depth for sediment-free pipes is 1·38 m). They generally have smooth walls along their length, are perfectly vertical and taper out towards their bottoms. Their development is not influenced by bedding nor fractures. Sometimes their walls are coated by a calcrete crust. Their morphology has been studied in detail and their relationships with the surrounding rocks and with the environment have been analysed. The perfectly vertical development is a clear evidence of their genesis controlled by gravity. The depth of the dissolution pipes can be described by an exponential distribution law (the Milanovic distribution), strongly suggesting they developed by a diffusion mechanism from the surface vertically downward. We believe dissolution pipes preferentially form in a covered karst setting. Local patches of soil and vegetation cause infiltration water to be enriched in carbon dioxide enhancing dissolution of carbonate cement and local small-scale subsidence. This process causes the formation of a depression cone that guides infiltrating waters towards these spots giving rise to the downward growth of gravity-controlled dissolution pipes. A change of climate from wetter phases to drier and hotter ones causes the formation of a calcrete lining, fossilizing the pipes. When the pipes become exposed to surface agents by erosion of the sediment cover or are laterally breached the loose quartz sand filling them may be transported elsewhere.