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 soil profile is a vertical section of the soil mantle usually with distinguishable soil horizons [16].?

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

What is Karstbase?



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 information (Keyword) returned 379 results for the whole karstbase:
Showing 1 to 15 of 379
Predicting travel times and transport characterization in karst conduits by analyzing tracer-breakthrough curves, , Morales Tomas, De Valderrama Inigo, Uriarte Jesus A. , Antiguedad Inaki, Olazar Martin,
SummaryThis paper analyzes data obtained in 26 tracer tests carried out in 11 karstic connections following solutional conduits in karst aquifers in the Basque Country. These conduits are preferential drainage pathways in these aquifers and so they confer a marked anisotropy and high vulnerability to them. Consequently, their consideration in protection and management studies and projects is a priority.The connections studied cover a wide hydrogeological spectrum (a wide range of sizes, slopes, geomorphic and hydrologic types) and the tests have been carried out at different hydrodynamic states. It is noteworthy that they all follow a similar trend, which has allowed for the development of a statistical approximation for the treatment of the whole information.Relationships have been established involving velocity, solute time of arrival, attenuation of peak concentration and time of passage of tracer cloud. These relationships are a valuable tool for management and supporting decision-making and allow for making estimates in connections in which the information available was scarce. This information is especially useful, given that the complexity of transport in karst conduits gives way to important deviations between real data (empirical observations) and the data obtained by simple approaches based on the Fickian-type diffusion equation

Dritter internationaler Kongre fr Spelologie Wien - Obertraun - Salzburg 1961. Erstes Rundschreiben., 1960, Anonym,
[Organisationskomitee, Themen, Vortrge, Exkursionen, Informationen]

The Development of Cocklebiddy Cave Eucla Basin, Western Australia, 1965, Lowry, D. C.

At present, the best account of cave formation in the Eucla Basin is that of Jennings (1961). However, the paper does not contain detailed information or maps of Cocklebiddy Cave, and this account should help to fill that need. The cave is the westernmost deep cave in the Eucla Basin (see area map in Anderson, 1964). It has received little attention from cave exploration parties from the Eastern States of Australia.

Speleochronology, 1966, Ollier, C. D.

Speleochronolgy is a study of the age of caves and their contents. At the present time the International Commission for Speleology is collecting data, and as the Australian representative on the Commission, the author would like to hear from anyone with information that may be relevant to speleochronology in Australia or in neighbouring countries. This paper shows some of the aims and methods of the subject and indicates the type of information that may be useful.

Information Retrival for Cave Records, 1970, Wilcock J. D.

Resemblances Between the Extinct "Cave Goat" (Eutheria, Bovidae) of the Balearic Islands and Phalangeroid Marsupials, 1971, Merrilees, D.

Information on the extinct "cave goat" (Myotragus balearicus Bate 1909) of the Balearic Islands is reviewed. Abundant remains of Myotragus balearicus are known from various deposits of late Quaternary (including Regent) ages. It had only a single pair of lower incisors, in this respect resembling Australian herbivorous marsupials, especially the bare nosed wombats.

Hydrogeologic Constraints on Yucatan's Development, 1974, Doehring Do, Butler Jh,
The Republic of Mexico has an ambitious and effective national water program. The Secretaria de Recursos Hidraulicos (SRH), whose director has cabinet rank in the federal government, is one of the most professionally distinguished government agencies of its kind in the Americas. Resources for the Future, Inc., has been assisting the World Bank with a water planning study which the Bank is undertaking jointly with the Mexican government. The study is intended to provide guidelines for the development of government policies and projects designed to bring about the most efficient use of Mexico's water resources. However, to date, their study has not been directed toward the growing problems of the northern Yucataan Peninsula which are discussed here.LeGrand (13) suggested that man has inherited a harsh environment in carbonate terranes. In the case of the northern Yucatan Peninsula, the physical environment creates a set of hydrogeologic constraints to future economic and social development. Planning for intermediate and long-range land use on the peninsula must be related directly to the limited and fragile groundwater source. Continued contamination will make future aquifer management a difficult challenge for federal, state, and territorial agencies. We conclude that any strategy for long-range land use in the study area should include establishment of a regional aquifermonitoring network for long-term measurements of key hydrogeologic parameters, including precipitation, evapotranspiration, water table elevations, and water quality. Information from this network would flow into a central facility for storage, interpretation, and analysis. At present the SRH is collecting some of these data. Expansion of the existing program to provide sound information for regional planning will greatly benefit present as well as future generations. If such a program is implemented, it will represent a model for regional planning in other tropical and subtropical karstic terrains

Karst Hydrogeology and Geomorphology of the Sierra de El Abra and the Valles-San Luis Potosí Region, México, PhD Thesis, 1977, Fish, Johnnie Edward

The general objective of this work was to develop a basic understanding of the karst hydrology, the nature and origin of the caves, the water chemistry, the surface geomorphology, and relationships among these aspects for a high relief tropical karst region having a thick section of limestone. The Valles-San Luis Potosí region of northeastern México, and in particular, the Sierra de El Abra, was selected for the study. A Cretaceous Platform approximately 200 km wide and 300 km long (N-S) delimits the region of interest. A thick Lower Cretaceous deposit of gypsum and anydrite, and probably surrounded by Lower Cretaceous limestone facies, is overlain by more than 1000 m of the thick-bedded middle Cretaceous El Abra limestone, which has a thick platform-margin reef. The Sierra de El Abra is a greatly elongated range along the eastern margin of the Platform. During the late Cretaceous, the region was covered by thick deposits of impermeable rocks. During the early Tertiary, the area was folded, uplifted, and subjected to erosion. A high relief karst having a wide variety of geomorphic forms controlled by climate and structure has developed. Rainfall in the region varies from 250-2500 mm and is strongly concentrated in the months June-October, when very large rainfalls often occur.
A number of specific investigations were made to meet the general objective given above, with special emphasis on those that provide information concerning the nature of ground-water flow systems in the region. Most of the runoff from the region passes through the karstic subsurface. Large portions of the region have no surface runoff whatsoever. The El Abra Formation is continuous over nearly the whole Platform, and it defines a region of very active ground-water circulation. Discharge from the aquifer occurs at a number of large and many small springs. Two of them, the Coy and the Frío springs group, are among the largest springs in the world with average discharges of approximately 24 m³/sec and 28 m³/sec respectively. Most of the dry season regional discharge is from a few large springs at low elevations along the eastern margin of the Platform. The flow systems give extremely dynamic responses to large precipitation events; floods at springs usually crest roughly one day after the causal rainfall and most springs have discharge variations (0max/0min) of 25-100 times. These facts indicate well-developed conduit flow systems.
The hydrochemical and hydrologic evidence in combination with the hydrogeologic setting demonstrate the existence of regional ground-water flow to several of the large eastern springs. Hydrochemical mixing-model calculations show that the amount of regional flow is at least 12 m³/sec, that it has an approximately constant flux, and that the local flow systems provide the extremely variable component of spring discharge. The chemical and physical properties of the springs are explained in terms of local and regional flow systems.
Local studies carried out in the Sierra de El Abra show that large conduits have developed, and that large fluctuations of the water table occur. The large fossil caves in the range were part of great deep phreatic flow systems which circulated at least 300 m below ancient water tables and which discharged onto ancient coastal plains much higher than the present one. The western margin swallet caves are of the floodwater type. The cave are structurally controlled.
Knowledge gained in this study should provide a basis for planning future research, and in particular for water resource development. The aquifer has great potential for water supply, but little of that potential is presently used.

A Chemical Investigation of some Groundwater of the Northern Limestone at Jenolan Caves, 1977, James Julia M. , Handel M. L.

A brief description of the geology and drainage of the Northern limestone at Jenolan Caves is introduced. Approaches to karst geochemistry are given. The reasons are given for the choice of complete chemical analyses followed by calculations of the thermochemical parameters (saturation indices with respect to calcite and dolomite, SIc and SId, and the partial pressure of carbon dioxide PCO2) for the Jenolan groundwaters. The methods of chemical analysis and thermochemical calculations are reported. The results of the groundwater survey are presented both as the raw chemical data and the derived thermochemical data. The raw data give more useful information than the calculated parameters. The results obtained by this survey are consistent with observations and the previous knowledge of the underground drainage of the Northern limestone. The water chemistry reflected the rock type and the residence time of the water in bedrock and gravels. It is concluded that the Jenolan underground River and Central River have different types of source and that Central River is not a braid of the Jenolan Underground River.

Martel's La France ignore: new information from two post cards to his Publisher., 1978, Shaw Trevor R.
Two recently discovered post cards written by Martel to his publisher provide new information on the date he completed the manuscript of the first of La France ignore and on the progress of its printing.

Problems of engineering-geomorphological mapping on impermeable surface materials and in karst regions, 1979, Lang S. ,
The author outlines the type of information which should be presented on engineering-geomorphological maps, and stresses the need to show the relationship between this data and the possibility of natural catastrophes. For example, it is proposed that a system of maps covering areas where there is a high probability of landslipping should be devised, with priority to be given to populated tropical and equatorial regions. The mapping of other problem' areas (e.g. arid, polar, and karst regions) is also discussed. However, it is concluded that, in all areas, an overall evaluation of climatic, morphological, and lithological factors is essential for engineering-geomorphological mapping

Fluoreszenzmikroskopische Untersuchung der Bakterienflora und Bestimmung ihrer heterotrophen Aktivitt in organisch belastetem und unbelastetem Grundwasser sandig-kiesiger Ablagerungen., 1981, Marxsen Jurgen
Bacteriological investigations were carried out in the groundwater of sandy and gravelly deposits of the river Fulda valley in an area named Johannesaue near the town Fulda (Hesse, Fed. Rep. of Germany). In January 1979 water samples were collected from 16 pumping tubes distributed in organically polluted and unpolluted areas. For characterizing the bacterial populations, methods used for surface waters were modified and, as far as the author is aware, these methods were used for the first time for investigations pertaining subterranean waters. The bacteria were counted by means of epifluorescence microscopy after staining the bacteria with the fluorochrome acridine orange. This technique renders possible the simultaneous registration of shape and size of bacteria. Parameters characterizing the heterotrophic bacterial activity were measured with 14C-labelled glucose. The number of bacteria in the groundwater collected through pumping tubes, varied from 1.4 to 11.3 million bacteria per ml. The relative glucose uptake potential vr, which was measured at one substrate concentration (600 microg glucose .1-1) where the maximum uptake velocity is almost reached, was 0.12; 0.74 microg glucose 1-1 .h-1. The corresponding specific potential was 0.02-0.18 microg glucose h-1 cell-1. The results agreed with the values of maximum uptake velocity Vmax which was measured at the same time in some of the groundwater samples. The data give first information about distribution of the number of bacteria and of heterotrophic bacterial activity in the groundwater of the investigation area. Relationships could be shown between the bacteriological parameters on the one hand and the concentration of oxygen and the values of COD measured with KMnO4 on the other hand.

Scanning Electron Microscope Studies of Cave Sediments, 1981, Gillieson, David S.

The microstructure of the surfaces of quartz and grains can reveal their history prior to their deposition in a cave. The scanning electron microscope is the ideal tool for such studies. This paper presents examples of the sort of information obtainable from such a study, drawing examples from caves in Australia, Papua New Guinea and Norway.

Effets des informations chimiques provenant d'un milieu habit par des congnres sur I'orientation topographique du poisson cavernicole Phreatichthys andruzzii Vinciguerra (Pisces, Cyprinidae)., 1982, Berti Roberto, Lefvre B. , Thins Georges
Two series of experiments were performed on the oriented locomotor responses of 27 specimens of the blind cave fish Phreatichthys andruzzii from Somalia using a three-compartment choice apparatus. The oriented responses were observed individually from the central compartment towards either of the extreme ones. In one of them, 500 ml water were introduced from either the tank in which the test fish had previously resided with conspecifics (lst series, 46 experiments) or from another tank occupied by unknown conspecifics, the other compartment receiving an equivalent of pure water. The two series were performed in random blocks of 6 experiments, the momentary position of the test fish being noted every 30 seconds after an adaptation period of at least 4 hours. Results, analyzed in 9 blocks of 5 minutes show a definite preferential orientation of the fishes for the compartment containing chemical information from both known or unknown conspecifics. This effect is discussed in relation to the ecological conditions in which the species under study lives.

Three Groundwater Candoninae (Ostracoda) from Romania., 1982, Danielopol Dan L.
Description of Mixtcandona botosaneanu, Mixtacandona loffleri and Phreatocandona motasi, are presented. The first two species belong to the group laisi-chappuisi and have been found in porous and karstic aquifers in Southwest Romania in or near the Lower Danube Valley. Phreatocandona motasi occurs in a porous aquifer in the Olt Valley, at Jiblea, near Calimanesti. Biogeographical information on the present distribution of the Mixtacandona of the group laisi-chappuisi and on the subterranean Candoninae from the Lower Danube Valley in Romania is given.

Results 1 to 15 of 379
You probably didn't submit anything to search for