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Enviroscan Ukrainian Institute of Speleology and Karstology

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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 reculee is see pocket valley.?

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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.
See all featured articles
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

Journal of Sedimentary Research, 2006, Vol 76, Issue 1, p. 131-151
Heterogeneity in Fill and Properties of Karst-Modified Syndepositional Faults and Fractures: Upper Permian Capitan Platform, New Mexico, U.S.A
Abstract:
This study examines the heterogeneity in properties of syndepositional faults and fractures found in the Upper Permian Capitan carbonate platform, Guadalupe Mountains, New Mexico. Syndepositional faults and fractures grew incrementally, and were repeatedly exploited by early karst as the platform developed. Primary fault and fracture rocks were preferentially dissolved to form structure-controlled paleocaverns, which were subsequently filled with platform-derived sediments. These are divided here into three groups: (i) carbonate-dominated, (ii) siliciclastic-dominated, and (iii) mixed carbonate-siliciclastic lithologies. The affinity of the paleocavern-filling deposits to platform strata permits linking of the different fill types to different stages of sea-level cycle. Consequently, periods of dissolution and deposition within paleocaverns can be tied to the platform's sequence stratigraphy. Paleocavern-filling sediments have a distinct vertical stratigraphy, and are observed to vary with distance from the platform margin over a distance of 2.6 km. Their distribution is thus to some extent predictable. Vertical and lateral variability in paleocavern fill is chiefly related to siliciclastic-filled karstic chimneys that narrow downwards and tend to become more frequent and laterally extensive upwards. This is because upper structural levels of fault and fracture zones were more frequently opened by early karst, and also because siliciclastics are not prone to dissolution, whereas carbonates are. Across platform, karst-modified faults and fractures located close to the platform margin are dominated by carbonate lithologies. The proportion and vertical penetration of siliciclastics increases with distance from platform margin. These patterns appear to reflect variations in the frequency and duration of subaerial exposure events across the basinward-inclined Capitan platform. The results of this study have implications for understanding properties of early faults and fractures in carbonate strata. Faults and fractures presented here are heterogeneous, and the heterogeneity is related principally to distribution of sedimentary rocks within paleocaverns developed along them. As a consequence, their properties are not related to dimensions or throw, as is the case for faults and fractures within siliciclastic rocks. Data and interpretations presented here have implications for Capitan hydrocarbon reservoirs, and can be applied to characterization of faults and fractures in other carbonate platforms subjected to early deformation