Community news

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 dissolution of limestone is the solubility of calcite (and hence of limestone) in pure water is very low, but is vastly increased in the presence of carbon dioxide. this gas, dissolved in the water to produce carbonic acid, permits dissociation of calcium carbonate, and dissolution rates and loads are therefore directly related to carbon dioxide content. this accounts for the importance to limestone dissolution of plant growth; soil water contains greatly more carbon dioxide than stream waters. further dissolution occurs due to mixing of saturated waters of different carbon dioxide content (see mischungskorrosion), because of a nonlinear relationship between carbonate saturation and carbon dioxide content. this process is of major significance to continued dissolution within the phreas. cold water can dissolve more carbon dioxide but, with respect to cave development, this climatic factor is overwhelmed by the higher organic activity producing more carbon dioxide in warmer environments. loss of carbon dioxide, by diffusion into open air, causes water to precipitate calcite as speleothems. limestone dissolution may also be achieved by organic acids or by strong acids, particularly sulphuric acid, though such effects are normally far less than that of carbon dioxide. strong acid dissolution is probably involved in the inception of most underground drainage. dissolution by sulphuric acid formed by oxidation of sulfide minerals or gases may be a major cave-forming process in some regions, and was largely responsible for the enlargement of carlsbad caverns and lechuguilla cave, new mexico [9].?

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

Brian Lewarne (United Kingdom)

Contact by email Contact by email
Address: The Devon Karst Research Society, Office & Library, 46, Morley Court, Western Approach, PLYMOUTH, Devon, PL1 1SJ UK
Affiliation: The Devon Karst Research Society, Plymouth, UK.
Speleolosko drustvo "Zelena Brda", Trebinje, RS-BiH.
Position: Honorary Science Officer
Specialization: Hydrogeology
Instrumentation: Numerous.
Geoactivity: - The Counties of Devon, Somerset and Yorkshire in the UK.
- Bosnia & Hercegovina.
- Montenegro.
- Croatia (Dalmatia).

- Hungary.
- Slovakia.
Interests: In Plymouth, UK., the "Cattedown Caves" Project, principally
with the exhumation-excavation and re-evaluation of an enigmatic
British Palaeolithic cave site complex associated with fossil hominins
and pleistocene faunal assemblages;
In Devon, UK., with a Karst Hydrological Programme to
determine karst underground flowlines, the spatial extent of karst
aquifers and the location of underground watersheds.�
In the historic Region of Eastern Hercegovina in Bosnia &
Hercegovina (and its geographical extent in modern Montenegro and
Croatia) with a 30-year long multi-disciplinary karst environmental
programme -the "Proteus Project"- designed to evaluate the present
environmental problems associated with the near extinction of many
endemic hypogean faunal species, including Proteus anguinus (Laur 1768) and numerous others.
I direct an international team containing specialists in many disciplines and skills. Working as equal partners with local speleologists, we deploy a variety of standard procedures in karst hydrological and speleological investigations across the whole region to determine the whereabouts and detailed characteristics of karst conduit-aquifer ecosystems, which either continue to support the endangered hypogean fauna or which used to support them but no longer do so. This necessarily requires the deployment of new methods of research and study into the recording of hypogean behaviour and in the qualitative and quantitative recording of hypogean species' inventories.

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