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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 residual clay is clay or sandy clay remaining on a rock surface after removal of calcium carbonate by solution. compare terra rossa [10].?

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KarstBase a bibliography database in karst and cave science.

Featured articles from Cave & Karst Science Journals
Chemistry and Karst, White, William B.
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Featured articles from other Geoscience Journals
Karst environment, Culver D.C.
Mushroom Speleothems: Stromatolites That Formed in the Absence of Phototrophs, Bontognali, Tomaso R.R.; D’Angeli Ilenia M.; Tisato, Nicola; Vasconcelos, Crisogono; Bernasconi, Stefano M.; Gonzales, Esteban R. G.; De Waele, Jo
Calculating flux to predict future cave radon concentrations, Rowberry, Matt; Marti, Xavi; Frontera, Carlos; Van De Wiel, Marco; Briestensky, Milos
Microbial mediation of complex subterranean mineral structures, Tirato, Nicola; Torriano, Stefano F.F;, Monteux, Sylvain; Sauro, Francesco; De Waele, Jo; Lavagna, Maria Luisa; D’Angeli, Ilenia Maria; Chailloux, Daniel; Renda, Michel; Eglinton, Timothy I.; Bontognali, Tomaso Renzo Rezio
Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria), Briestensky, Milos; Rowberry, Matt; Stemberk, Josef; Stefanov, Petar; Vozar, Jozef; Sebela, Stanka; Petro, Lubomir; Bella, Pavel; Gaal, Ludovit; Ormukov, Cholponbek;
See all featured articles from other geoscience journals

NSS
Journal of Cave and Karst Studies, 2006, Vol 68, Issue 3, p. 130-136
Empirical study of conduit radial cross-section determination and representation methods on cavernous limestone porosity characterization
Abstract:
Radial cross sections are constructed during cave mapping in order to illustrate karst groundwater conduit (cave passage) morphology. These sections can also be employed in studies of porosity distribution and paleohydrology. Cave surveyors usually estimate left, right, up, and down (LRUD) distances from a survey station to the conduit wall, and these four values are used to construct the radial cross section, and occasionally integrated along the length of the passage to determine cave volume. This study evaluates the potential errors caused by LRUD estimation, as well as the effects of differing geometric approximations of passage shape. Passage dimensions at 18 stations of diverse size and morphology in Scott Hollow Cave, West Virginia were first estimated for LRUD and then precisely surveyed using a laser rangefinder taking 16 radial measurements. Results show that, depending upon the purpose of a survey, a reasonable approximation of passage shape might be made with fewer (four or eight) measurements. In cases where only four lengths are determined, approximation of the passage as an ellipse or rectangle provides a more accurate morphology and area than if portrayed as a quadrilateral. In the former case, average area errors were on the order of 10%, as opposed to -45% in the latter. Surveyor estimates of LRUD give an average overestimate of 27%. Length errors compound, however, when areas are calculated. This results in an average cross-section area error (as quadrilateral) of 57% when using estimates instead of measurements. This may be problematic for such analyses as calculation of fluid storage volumes or paleodischarges.