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 coefficient of transmissivity; coefficient of transmissibility is an obsolete term replaced by the term transmissivity.?

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 geophysic (Keyword) returned 162 results for the whole karstbase:
Showing 1 to 15 of 162
Characterizing flow zones in a fractured and karstified limestone aquifer through integrated interpretation of geophysical and hydraulic data, , Nathalie Van Meir, David Jaeggi, Martin Herfort, Simon Loew, Philippe A. Pezard, Crard Lods,

A comparative integrated geophysical study of Horseshoe Chimney Cave, Colorado Bend State Park, Texas, , Brown Wesley A. , Stafford Kevin W. , Shawfaulkner Mindy , Grubbs Andy

An integrated geophysical study was performed over a known cave in Colorado Bend State Park (CBSP), Texas, where shallow karst features are common within the Ellenberger Limestone. Geophysical survey such as microgravity, ground penetrating radar (GPR), direct current (DC) resistivity, capacitively coupled (CC) resistivity, induced polarization (IP) and ground conductivity (GC) measurements were performed in an effort to distinguish which geophysical method worked most effectively and efficiently in detecting the presence of subsurface voids, caves and collapsed features. Horseshoe Chimney Cave (HCC), which is part of a larger network of cave systems, provides a good control environment for this research. A 50 x 50 meter grid, with 5 m spaced traverses was positioned around the entrance to HCC. Geophysical techniques listed above were used to collect geophysical data which were processed with the aid of commercial software packages. A traditional cave survey was conducted after geophysical data collection, to avoid any bias in initial data collection. The survey of the cave also provided ground truthing. Results indicate the microgravity followed by CC resistivity techniques worked most efficiently and were most cost effective, while the other methods showed varying levels of effectiveness.


Geophysics and Its Applications to Speleology, 1947, Krinitzsky, E. L.

Remarks on the significance of experiences in karst geodynamics., 1964, Renault Philippe
Distinction is made between the experiment which "demonstrates" having an argumentative value; and the experiment which "questions" nature by isolating one factor and by determining the mode of its action. The concept of experiment in geology and in geodynamics and the distinctions between geodynamics and geophysics are discussed. Karstic geodynamics considers the action of fluids; mainly liquids; on a soluble rock. It is a science bordering the different branches of geochemistry, hydrology, the mechanics of rocks, and geophysics. Researches in karstic geodynamics are based upon measurements obtained through field surveys, or upon the utilization of a subterranean laboratory. However, in the laboratory this hardly surpasses the stage of experimental demonstration. A series of simple experiments are enumerated to exemplify the above statement, like the one where the attack of a diluted acid on a soluble rock is utilized, in order to enable us to classify the major problems encountered in karstic corrosion. The last chapter discusses the bicarbonate equilibriums of Ca-CO2. Experiment furnishes the empiric criterion on which scientific theory is founded. Each discipline has its own methodology dependent on the object under study having experimental criteria of different nature. This is particularly true in case of such distant phenomena which no longer have a common ground with human dimensions like space for astronomy or time for geology. In such cases the possibilities of "instrumental" experimentations are very limited. After a brief recollection of the principles of experimental procedure and the history of the experiments attempted by geodynamicians (tectonics, geomorphology, etc.) we will analyze several methods of investigation and by relying exactly on the example of karstic corrosion we shall determine those which have a value for the science of karstology.

Geophysical methods used in solving some geological problems encountered in construction of the Treblinisca water power plant (Yugoslavia), 1966, Arandjelovic D.

Karstological and geophysical investigations of karst cavities of the Pridnestrovskaja Podolija I Pokutje, 1969, Dublyansky V. N. , Smol'nikov B. N.

Geophysical applications of heat and mass transfer in turbulent pipe flow, 1971, Wigley T. , Brown C. ,

Geophysical logging of water wells, 1981, Robinson V. D. , Oliver D.

Palaeogeographic environment during the desiccation of the Black Sea, 1983, Kojumdgieva Emilia,
During the latest Chersonian (about 10.3 m.y. ago) tectonic movements took place leading to an elevation of the Crimean-Caucasian chain and to an isolation of the Fore-Caucasian part of the Black Sea Basin. This part of the basin had been draining the rivers of the Russian Platform and after the isolation it became desalinized, while the main part of the Black Sea Basin was almost desiccated and evaporites, mainly dolomites, formed in it due to the predominant calcium---magnesium---carbonate composition of the Chersonian Sea waters. These dolomites are found in the drillings of DSDP Leg 42B and are confirmed geophysically.The tectonic movements during the latest Chersonian led to the formation of a series of grabens along which the Mediterranean Sea invaded the north Aegean area and a little later (during the Early Maeotian) the Black Sea

Application of geophysical methods to hydrogeological problems in Dinaric karst of Yugoslavia, 1984, Arandjelovic D.

Geophysical prospecting, 1984, Astier J. L.

Techniques gophysiques de type lectromagntiques appliques l'tude du karst nivernais, 1985, Couturaud A. , Benderitter Y.
STUDY OF KARSTIC DRAINS ENVIRONMENT BY GEOPHYSICAL TECHNIQUES (ELECTRIC AND ELECTROMAGNETIC) - Geophysical techniques (electric and electromagnetic) are tested on two underground rivers of the Nivernais karst (Bourgogne, France). The first site is an important dry valley and the second locates at the border of a plateau. No sharp image of the known galleries were obtained on both sites, but the first one shows a higher density of anomalies corresponding to the cave. In the axis of the valley is a weak resistivity anomaly, without any relation with the karstic drainage and which has not superficial origin. This anomaly would be the consequence of a fracturing of bottom valley. Others zones of fractures are evidenced, cross-cutting the conduits. The second one has also weak resistivity zones, independent of the cave, which are interpreted as annex system (hydrological sense). Some reflections on theoretical and methodological aspect of this type of research are proposed.

Geophysical mapping techniques in environmental planning, 1987, Culshaw Mg, Jackson Pd, Mccann Dm,
Geophysical information can be used to identify geological features, some of which may be a problem during the planning, design or construction of a new development. The location of magnetic dykes, the investigation of buried channels, or of landslips, the determination of the thickness of drift deposits or the identification of natural or man-made cavities are all problems which can be studied by geophysical surveying methods on both a regional or local scale. The information obtained can then be incorporated into factual or interpreted engineering geological maps for use by planners or engineers. In this paper, the contribution that geophysical surveying methods can make at the planning, design, construction and monitoring stages of a development is examined and illustrated with a number of case histories

The use of geophysical surveying methods in the detection of natural cavities and mineshafts, 1987, Mccann D. M. , Jackson P. D. , Culshaw M. G. ,
The use of geophysical methods for the location of cavities and mineshafts is reviewed in relation to engineering problems at the site investigation stage. Their success is limited by the resolution and penetration achieved by the particular method applied in a given situation. It is shown that no one single geophysical method will provide the answer to all the problems associated with cavity location but considerable improvement can be achieved by the application of several methods to a given problem. It is suggested that for most standard geophysical methods it is possible to detect a cavity whose depth of burial is less than twice its effective diameter. The concept of effective diameter is shown to be of considerable importance since the presence of the cavity or mineshaft does affect the physical properties of the surrounding rock mass and, hence, gives rise to a far larger anomalous zone than that produced by the cavity on its own

Le gouffre des Tourettes (Fayence, Var), 1989, Gilli, E.
The Tourettes collapse-shaft (Fayence, Var) - In December 1987, the sudden apparition of a collapse shaft in a small river, the Chautard (Fayence, Var, France) has been considered as a natural disaster. Important credits for a general study were attributed because of the proximity of an house. Geophysic and drillings have shown this collapse resulted of the solution of a gypsum lens included in marls, fifty meters underneath.

Results 1 to 15 of 162
You probably didn't submit anything to search for