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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 magnetic north is the direction to the north magnetic pole at a given place and time. this differs from the direction towards which the north end of a compass points by a small individual compass error and by the effect of any local magnetic attraction [25].?

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:

Spanish caver injured in a deep cave in Peru.
Cecilio López-Tercero, profesional speleologist was injured during the exploration of the karst system in Leymebamba, Amazonas, located in the Andean Cordillera.
Evaporite Karst in the Greater Permian Basin
The session on evaporite karst will be held at the South-Central Section, Geological Society of America (GSA) meeting in Stillwater, OK, on March 19-20, 2015.
State of Minnesota, U.S.A. employment (hydrology-hydrogeology)
The State of Minnesota has positions open for hydrologists. These positions include some for hydrogeologists.
Mine Water Solutions in Extreme Environments - Second Edition
Mine Water Solutions is a conference focused on EXTREMES and SOLUTIONS to mine water issues in very challenging environments. It will be held in Vancouver, Canada, April 12-15, 2015.
Isotope Workshop XIII organized by the European Society for Isotope Research (ESIR)
The announcement and the first circular for Isotope Workshop XIII, Zadar Croatia - 2015

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Did you know?

That blowhole is 1. opening in the roof of a cave or cavern through which air is expelled vigorously. in coastal areas the phenomenon is usually due to compression of air within the cave by incoming tides or waves [20]. 2. cliff top entrance to a sea cave, also known as a geo, gloop, or gloup [9]. 3. (australian.) a small hole in the surface of the nullarbor plain through which air blows in and out with observable force, sometimes audibly [10]. related to breathing hole.synonyms: (french.) trou souffleur; (german.) windhohle; (greek.) ope ekphysosa; (italian.) bocca soffiante; (spanish.) soplador; (turkish.) uflenme agzi; (yugoslavian.) vjetrenica, veternica, puhaljka, pihalnik, dihalnik. see also steam hole.?

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

Featured articles from Cave & Karst Science Journals
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Featured articles from other Geoscience Journals
A review on natural and human-induced hazards and impacts in karst, Gutiérrez Francisco, Parise Mario, De Waele Jo, Jourde Hervé
Nonlinear Flow in Karst Formations, Chin, D.A.; Price, R.M.; DiFrenna, V.J.
Characterisation and modelling of conduit restricted karst aquifers – Example of the Auja spring, Jordan Valley, Schmidta, Sebastian; Geyera, Tobias; Guttmanb, Joseph; Mareic, Amer; Riesd, Fabian; Sauter, Martin
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.