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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 LNAPL is abbreviation for light nonaqueous phase liquid. liquids falling into this category have specific gravities that are less than water (the specific gravity for water is usually taken to be one), are relatively immiscible with water, and tend to migrate downwards through the vadose and to float on top of the water table. see also lnapl; immiscible; napl.?

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:

A new web site on hypogenic caves of Murcia (Spain)
A new web site dedicated to hypogenic caves of Murcia
Welcome to Karstology doctoral study
The Karstology doctoral study program is a world-wide unique program which provides a comprehensive study of karst science, combining the study of the karst landscape, karst caves, karst hydrogeology, biology and ecology of karst in one course of study.
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Speleology of Georgia
Speleological Society of Georgia is created.
Speleology of Georgia
Dear colleagues, I would like to inform you that Speleological Society of Georgia was created in the Republic of Georgia By following a link below you can read interesting information about speleology of Georgia https://speleologygeorgiawordpresscom/. ...

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Did you know?

That waterlogging is water accumulation on top of soil where the water table and ground surface coincide.?

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
Sulphuric acid speleogenesis and landscape evolution: Montecchio cave, Albegna river valley (Southern Tuscany, Italy), Piccini, Leonardo; De Waele, Jo; Galli, Ermanno; Polyak, Victor J.; Bernasconi, Stefano M., Asmerom, Yemane
The role of condensation in the evolution of dissolutional forms in gypsum caves: Study case in the karst of Sorbas (SE Spain), Gazquez, Fernando; Calaforra, José Maria; Forti, Paolo; De Waele, Jo; Sanna, Laura
Genesis of folia in a non-thermal epigenic cave (Matanzas, Cuba), D'Angeli, Ilenia Maria; De Waele, Jo; Ceballo Melendres, Osmany; Tisato, Nicola; Sauro, Francesco; Grau Gonzalez, Esteban Ruben; Bernasconi, Stefano; Torriani, Stefano; Bontognali, Tomaso Renzo Rezio
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.