MWH Global

Enviroscan Ukrainian Institute of Speleology and Karstology

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 permeability coefficient is the rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient at the prevailing temperature (field permeability coefficient) or adjusted to a temperature of 15oc [22].?

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

What is Karstbase?

Search KARSTBASE:

keyword
author

Browse Speleogenesis Issues:

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

Search in KarstBase

Your search for south-wales (Keyword) returned 4 results for the whole karstbase:
Summaries of papers read at The Engineering Group Regional Meeting-Cardiff 1977: Engineering Geology of Soluble Rocks, 1978,
Engineering Geology of the South Wales Coalfield and its margins--with particular reference to the Carboniferous Limestone. By J. G. C. Anderson. The stratigraphical succession of the Cardiff district ranges from Silurian to Lower Jurassic, while structurally the rocks have been affected by Caledonian, Hercynian and Alpine movements. Caledonian folding is relatively weak but powerful Hercynian (Asturian) folding and faulting took place about the end of the Westphalian; the elongate South Wales Coalfield Basin being formed at this time. Mesozoic strata, up to the Liassic, are also folded and faulted by movements which may have been as late as the Miocene. Silurian rocks which occur in the Usk and Rumney Inliers consist of sandstones, siltstones and shales (often calcareous) as well as some limestones. The argillaceous rocks often weather deeply and degenerate to clay with rock lithorelicts, consequently they pose problems in foundations and cuttings, e.g. on the east side of Cardiff. The Old Red Sandstone, both Lower and Upper divisions are present, is made up of marls, sandstones and conglomerates. Some of the sandstones are aquifers and provide water in commercial quantities. The marls, especially where steeply inclined are liable to slipping, as happened for example, in the Brynglas (M4) Tunnel at Newport. The Carboniferous Limestone surrounds the coalfield and consists mainly of limestone and dolomite (see also below). The Millstone Grit does not contain the gritty sandstones of the Pennines and is made up mainly of strong siliceous sandstones and shales. The Coal Measures show the usual lithology; a ... This 250-word extract was created in the absence of an abstract

The recognition and interpretation of paleokarsts; two examples from the Lower Carboniferous of South Wales, 1982, Wright V. P. ,

GEOLOGICAL NOTE - CAVE FORMATION BY EXHUMATION OF PALEOZOIC PALEOKARST DEPOSITS AT JENOLAN CAVES, NEW-SOUTH-WALES, 1993, Osborne R. A. L. ,

Paleokarsts in late Precambrian and Ordovician carbonates, Kalpin-Shaya uplift zone, Tarim basin, China, 1999, Cao Hs, Yang Jd, Wang Dn,
The reservoir properties in the Kalpin-Shaya uplift zone, Tarim basin, are a common concern with regards to petroleum exploration and reservoir evaluation alike. Dissolution and paleokarst have a positive impact on the porosity as well as the storage capacity of carbonate reservoirs because the secondary porosity related to dissolution and paleokarst serves as excellent traps for migrating hydrocarbons. In order to evaluate the reservoir characteristics reasonably in the late Precambrian and Ordovician carbonate rocks, the secondary porosity, which was produced by dissolution and paleokarstification in late diagenetic stage. should be studied because the primary pores were mostly destroyed during the early-middle diagenesis due to serious compaction and multi-cementation. Carbonate rocks ate among the most important collectors of oil and gas accumulations in the world Important oil and gas reservoirs in paleokarst-containing carbonate rocks are known worldwide because micropores and megapores, such as solution openings, solution fissures, funnels, sinkholes. and caves, serve as the fundamentally important secondary porosity in those rocks. Several wells revealed that the Kalpin-Shaya region is a prospective target for oil and gas exploration. The reservoir carbonates of the Kalpin-Shaya uplift zone in the northern Tarim include dolomites and limestones. The best dolomite reservoirs are in the late Precambrian Qigebulake Formation (Z(2)(2)), the lower Qiulitage Group (is an element of(2-3)), the upper Qiulitage Group (O-1(1)), smd the Xiaoerbulake Formation (is an element of(1)), whereas limestone reservoirs are in the middle-upper formations of the upper Qiulitage Group (O-1(2-3)). On the basis of the study of petrology, paleontology, and stratigraphy from field work and well core data, the pore spaces within the Precambrian and Ordovician carbonate reservoirs are studied with the aim of proving that all secondary pores are controlled by dissolution and paleokarst

Results 1 to 4 of 4
You probably didn't submit anything to search for