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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 chert, chert nodule is 1. black, brown or grey rock, consisting of very fine-grained silica, that occurs as horizons of nodules and discontinuous bands, generally less than 200mm thick, within many limestones. it is very hard and almost insoluble in water, so commonly it projects from cave walls where it forms passage or shaft ledges and waterfall lips [9]. 2. light-cream or gray to black rock composed of silica, found occurring as nodules or layers in limestone, or as a replacement of limestone [10].?

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:

UIS 50th Anniversary Celebration and 23rd International Karstological School
The celebration of the UIS 50th Anniversary will held with the 23rd International Karstological School in Postoina, Slovenia in June 2015
New book on Karst and Tectonics
Springer-Verlag has recently published the book "Dynamic Tectonics and Karst" by Prof. Stefan Shanov and Assoc. Prof. Konstantin Kostov from the Geological Institute of Bulgarian Academy of Sciences.
Karst Graduate Student Opportunity
An announcement of a graduate student (MSc) opportunity for karst work in Guam.
Sinkhole Conference: abstract and student grant deadline reminder and new announcement
Two important reminders and one announcement for the 14th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst (aka “The Sinkhole Conference”).
Karst Division is created in the GSA
The Geological Society of America Council has approved the creation of the Karst Division at its annual meeting on Wednesday, October 22.

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Did you know?

That contributing region is that region which contributes to well discharge in inclined water-table flow [16].?

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
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.