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Enviroscan Ukrainian Institute of Speleology and Karstology


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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 geology is the study of the planet earth-the materials of which it is made, the processes that act on these materials, the products formed, and the history of the planet and its life forms since its origin. geology considers the physical forces that act on the earth, the chemistry of its constituent materials, and the biology of its past inhabitants as revealed by fossils. clues on the origin of the planet are sought in a study of the moon and other extraterrestrial bodies. the knowledge thus obtained is placed in the service of man-to aid in discovery of minerals and fuels of value in the earth's crust, to identify geologically stable sites for major structures, and to provide foreknowledge of some of the dangers associated with the mobile forces of a dynamic earth [1].?

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.

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


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Huntsville

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Speleogenesis: Evolution of Karst Aquifers, 2000, p. 452-457

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Speleogenesis in quartzites from Southeastern Minas Gerais, Brazil

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Abstract:
Speleogenesis in quartzites from the Andrelandia Gp. (Proterozoic) began with a long initial period of base level stability when silica solution from quartz and leaching from feldspar and phyllosilicates generated linear zones of friable rock with increased porosity and permeability (sanding, or arenisation). One (or more) uplift episode followed with lowering base level and increasing hydraulic gradients. The faster water flow is concentrated in the high-permeability zones, and loose quartz grains are mechanically removed, creating linear conduits (piping). The essential conditions for cave development in southeastern Minas Gerais were: a large difference between local and regional base levels; the presence of rock layers specifically susceptible to sanding and piping processes (thin-grained micaceous quartzite layers), or impermeable layers (schist lenses) and a sequence of stability/uplift cycles. Different cave patterns and sizes can be explained by changes in one or more of the above conditions.

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