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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 discharge is the volumetric flow of water through a given cross section [16].?

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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.
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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;
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Your search for frequency (Keyword) returned 145 results for the whole karstbase:
Showing 1 to 15 of 145
The Frequency of Severe Storms over the Mendip Hills, Somerset, 1969, Hanwell J. D.

Relations of jointing to orientation of solution cavities in limestones of central Pennsylvania, 1969, Deike Rg,
Twenty-six caves in central Pennsylvania were divided into passage segments inferred to have formed along the strike of fracture planes. For each cave passage, bearings weighted by footage were used to calculate an average passage orientation. Fractures measured at outcrops near the caves were classed by strike of subparallel sets which were cumulated by frequency for preferred orientations. Average passage orientation compared with orientation of fracture frequency was significant to the 95 percent level. Thus, caves develop more footage parallel to the strike of the more abundant fractures. Solution passages can therefore be used as one determinant of the local fracture system, and a selective solution process may be related to the mechanical origin of the fractures as well as their frequency

The Relationship between Jointing and Cave Passage Frequency at the head of the Tawe Valley, South Wales, 1973, Weaver J. D.

Feeding behaviour of the Salamander Gyrinophilus porphyriticus in caves., 1973, Culver David C.
The feeding responses of salamander larvae (Gyrinophilus porphyriticus) from caves in the Powell Valley in Virginia were investigated in the laboratory. The larvae locate prey by mechanoreception and capture the prey by a rapid sucking action, much like cave-limited salamanders do. Feeding success is greater with the isopod Asellus recurvatus (about 90 per cent) than with the amphipod Crangonyx antennatus (about 50 per cent), and this largely accounts for the higher frequency of A. recurvatus taken in choice experiments. G. porphyriticus readily ingested the unfamiliar isopod Lirceus usdagalun, but it took four weeks before it was digested as well. Small larvae tend to take small prey and large larvae take both large and small prey. Occasionally, larvae lunged at prey, which was usually unsuccessful. This behaviour seems to be a holdover from an evolutionary history in epigean environments where vision could be used to locate prey.

Feeding behaviour of the Salamander Gyrinophilus porphyriticus in caves., 1973, Culver David C.
The feeding responses of salamander larvae (Gyrinophilus porphyriticus) from caves in the Powell Valley in Virginia were investigated in the laboratory. The larvae locate prey by mechanoreception and capture the prey by a rapid sucking action, much like cave-limited salamanders do. Feeding success is greater with the isopod Asellus recurvatus (about 90 per cent) than with the amphipod Crangonyx antennatus (about 50 per cent), and this largely accounts for the higher frequency of A. recurvatus taken in choice experiments. G. porphyriticus readily ingested the unfamiliar isopod Lirceus usdagalun, but it took four weeks before it was digested as well. Small larvae tend to take small prey and large larvae take both large and small prey. Occasionally, larvae lunged at prey, which was usually unsuccessful. This behaviour seems to be a holdover from an evolutionary history in epigean environments where vision could be used to locate prey.

The development of limestone cave systems in the dimensions of length and depth., 1978, Ewers R. O. , Ford Derek Clifford
Karst caves are defined as solutional cavities 5-16 mm in diameter and discussion is limited to cases where such continuously extend to a surficial input or output or both. Three opposed sets of general genetic hypotheses ("the classical hypotheses") have been presented for such caves, Arguing that the majority develop 1) in the vadose zone 2) in the phreatic zone 3) proximate and parallel to a watertable. It is contended here that vadose, phreatc and watertable caves are all of common occurrence and may be linked in one genetic theory. A four state model is proposed in which ideal phreatic and watertable caverns are end members: in a given massif of soluble rock the state (cave type) that develops is a function of the frequency of fissures penetrable by groundwater. The water-table type is the high frequency end member. Fissure frequency increases with passage of time after onset of karstification and gradational features may also develop to modify phreatic types. Vadose caves may be of "drawdown" type (following an initial phreatic path) or "invasion" type (developing a new path through rock drained by earlier caves). Extensive cave systems may comprise vadose, phreatic and/or watertable developed contemporaneously.

Spontaneous and induced acivity patterns in troglobite beetles (Genera Aphaenops, Geotrechus,Speonomus)., 1978, Lamprecht G. , Weber F.
In Constant temperature the troglobite beetles Aphaenops cerberus and pluto, Geotrechus orpheus and Speonomus diecki are aperiodically active. By periodogram analysis neither circadian nor ultradian or infradian periodic components can be found. Moreover there are no relevant correlations between the lengths of successive activity bursts and rest pauses. Consequently the activity patterns are stochasticly structured.; In cases with constancy of activity respectively rest behaviour the probabilities for the transition from activity to rest and from rest to activity are computed using the Frequency histograms of lengths of activity bursts and rest pauses. The transition probability is time-invariant if the observed histogram can be approximated to the negative exponential function. Y=ae -fx . The transition probability increases continuously if the observed histogram can be approximated to the Poisson or normal function. -74% of the investigated frequency histograms of the length of activity bursts and 57% of the histograms of the lengths of rest pauses can be approximated to one of the tested functions. -Aphaenops and Geotrechus specimens do not react to changes of the illumination intensity. Conversely temperature cycles induce distinct activity periodicities. In Aphaenops the mean length of activity bursts is -on the average; less temperature dependent than the mean length of rest pauses. Moreover, in this species the mean length of bursts is weakly negatively correlated with the mean length of pauses.; The evolution and adaptive reactions of the random mechanism of activity control in troglobite animals are discussed.

Magnitude and frequency properties of dissolved solids transport., 1982, Gunn J.

Uranium-Series Ages of Speleothem from Northwest England: Correlation with Quaternary Climate, 1983, Gascoyne M, Schwarcz Hp, Ford Dc,
Over 180 $^{230}$Th/$^{234}$U ages have been obtained for 87 speleothems from caves in the Craven district of northwest England. Periods of abundant speleothem growth, 0-13, 90-135 and 170 to > 350 ka, are correlated with interglacial isotope stages 1, 5 and 7-9 respectively. Periods of zero growth, 14-35 and 140-165 ka, are correlated with glacial stages 2 and 6 respectively. A prominent break in growth of one speleothem, dated at about 260 ka, may be correlated with glacial stage 8. Lower-frequency growth from 35 to 90 ka is correlated with stages 3 and 4. The results may also be related to the British Quaternary sequence within the range of $^{14}$C determinations, as follows: 0-13 ka. Flandrian plus late Devensian deglaciation; 14-35 ka, late Devensian glaciation; 35-45 ka. Upton Warren interstadial. Low but finite speleothem abundance during the period 45-90 ka correlates with the early Devensian and is in good agreement with evidence indicating the non-glacial, but tundra-like, climate over this period. The Ipswichian interglacial is broadly related to the abundant growth period 90-135 ka, but is more closely defined by the interval 115-135 ka, from results of dating speleothems enclosing remains of Ipswichian fauna in one cave. By analogy with the zero speleothem abundance during the late Devensian glaciation, the period 140-165 ka may be tentatively correlated with the Wolstonian glaciation. Lack of direct stratigraphic relationships with, or absolute ages of, middle to early Pleistocene stages prevents further correlation of speleothem age data. From the frequency of abundance of speleothem basal ages for the period 0-13 ka, it appears that speleothem growth lags ice recession by up to 4 ka

Towards the prediction of subsidence risk upon the Chalk outcrop, 1983, Edmonds Cn,
Surface karst landforms such as solution pipes, swallow holes and dolines are well developed on the Cretaceous chalk outcrop in Britain. The local frequency of these solution features on the chalk can be as high as on any of the best developed karst areas on other British limestones. However, the overall frequency of solution features for major regions of the chalk outcrop is much lower. Solution pipes, swallow holes and dolines often represent an engineering hazard because of metastable conditions, which, if disturbed, can result in ground subsidence. The research described here is aimed at producing a model to predict areas of subsidence risk upon the chalk outcrop. Considerations for the prediction of subsidence risk are outlined with preliminary analysis for two areas

Further Studies At The Blue Waterholes, Cooleman Plain, N.S.W., 1969-77, Part II, Water Chemistry And Discussion, 1983, Jennings, J. N.

The 1969-77 data confirm that groundwater temperature is significantly higher than air temperature at mean catchment altitude but provide only partial support for an explanation in terms of soil temperature and insulation of drainage from cold air ponding over the Plain. Higher pH of output than input streams is attributed mainly to percolation water chemistry. Water chemistry of two contrasted input streams suggests non-karst rock weathering has an important effect on allogenic input streams. An inverse relationship between carbonate hardness and output discharge is found again and attributed mainly to faster transit through the limestone at high flows. Summer has a steeper regression than winter due to precipitation and high flows depressing carbon dioxide and carbonate concentrations more in that season than in winter. Picknett graphs show how solutional capacity varies through the hydrologic system, with aggressive input streams, mainly saturated percolation water, and rarely saturated output springs because of the allogenic component in the last. The total carbonate load of Cave Creek is directly related to discharge, with little seasonal difference so the annual regression is chosen for later calculation. When the carbonate load duration curve and frequency classes for Cave Creek are compared with those for other karsts, it falls into an intermediate class in which neither very high nor low flows dominate the pattern. This is attributed to a combination of a large allogenic input with a complex routing pattern. Consideration of most input stream solute concentration on one occasion indicates such close dependence on catchment geology that doubt is cast on the smallness of the 1965-9 allocation of carbonate contribution from non-karst rock weathering to the allogenic input. This is explained by new CSIRO rainfall chemistry figures from the Yass R. catchment which are smaller than those used before and by elimination of a previous error in calculation. This time subtraction of atmospheric salts is done on a daily basis with a decaying hyperbolic function. Correction of Cave Creek output for allogenic stream input follows the method adopted in 1965-9 but on a firmer basis, with the assumption of approximately equal water yeild per unit area from the non-karst and karst parts of the catchment being more factually supported than before. It remains a substantial correction. The correction for subjacent karst input to Cave Creek is also improved by putting the calculation in part on a seasonal basis; it remains small. The exposed solute load output shows the same seasonal pattern as was determined earlier, with a winter/spring maximum, and it again evinced much variation from year to year. So did annual rates. The mean annual loss of 29 B was slightly greater than for 1965-9. If this difference is real and not an experimental error, the reduced allowance for atmospheric salts and greater annual rainfall in the second period could explain the increase. This erosion rate of 29 B from an annual runoff of about 400mm places this karst where it would be expected in the world pattern of similar determinations in terms of both runoff and its proximity to the soil covered/bare karst dichotomy of Atkinson and Smith (1976). Combined with the other work at Cooleman Plain on erosion at specific kinds of site, an estimate of the spatial distribution of the limestone solution is presented. It agrees well with the similar attempt for Mendip by Atkinson and Smith (1976), when allowance is made for certain differences in method and context. The main conclusions are the great role of solution in the superficial zone and the unimportance of the contribution from caves. Conflict between this process study and the geomorphic history of Cooleman Plain remains and once again an explanation is sought in long persistence of a Tertiary ironstone cover inhibiting surface solution.

A comparison of sinkhole depth frequency distributions in temperate and tropical karst regions, 1984, Troester J. W. , White E. L. , White W. B.

Le massif du Parmelan, Haute-Savoie, relations fractura-tion-karstification, 1985, Masson, M.
THE MASSIF OF PARMELAN, HAUTE-SAVOIE, FRANCE: RELATIONS BETWEEN FRACTURATION AND KARSTIFICATION - The massif of Parmelan (Haute-Savoie), encloses a well-karstified and highly organised perched aquifer. Its simple geological structure and easy-speleological penetration (more than 45km are known) have allowed a statistical study of the fracturation and karstification parameters at different scales. This study shows that the karst has developed on the most frequent fracturation directions (study of the cumulated lengths), whereas its directional distribution in frequency is relatively homogeneous; the most used fractures are the tension faults, linked with the folding of the massif.

Barbuda--an emerging reef and lagoon complex on the edge of the Lesser Antilles island are, 1985, Brasier M, Donahue J,
The Pliocene to Holocene limestones of Barbuda have formed on a wide, shallow, outlying bank of the Lesser Antilles island arc, some 50 km east of the older axis of the Limestone Caribbees and 100 km east of the newer axis of the active Volcanic Caribbees. Contrasts with neighbouring islands of similar size include the lack of exposed igneous basement or mid-Tertiary sediments, the dominance of younger flat-lying carbonates, and the greater frequency of earthquake shocks. The history of emergence of the island has been studied through aerial reconnaissance, mapping, logging, hand coring, facies and microfacies analysis. These show a pattern of progressively falling high sea level stands (from more than 50 m down to the present level) on which are superimposed at least three major phases of subaerial exposure, when sea levels were close to, or below, their present level. This sequence can be summarized as follows: 1, bank edge facies (early Pliocene Highlands Formation) deposited at not more than c. 50-100 m above the present sea level; 2, emergence with moderate upwarping in the north, associated with the Bat Hole subaerial phase forming widespread karst; 3, older Pleistocene transgression with fringing reefs and protected bays formed at l0 to l5 m high sea level stands (Beazer Formation); 4, Marl Pits subaerial phase with widespread karst and soil formation; 5, late Pleistocene transgression up to m high stand with fringing and barrier reefs, protected backreefs and bays (Codrington Formation Phase I); 6, gradual regression resulting in emergence of reefs, enclosure of lagoons, and progradation of beach ridges at heights falling from c. 5 m to below present sea level (Codrington Phase II); 7, Castle Bay subaerial phase produced karst, caliche and coastal dunes that built eastwards to below present sea level; and 8, Holocene transgression producing the present mosaic, with reefs, lagoons and prograding beach ridge complexes, with the present sea level reached before c. 4085 years BP. The evidence suggests that slight uplift took place in the north of the island after early Pliocene times. Subsequent shoreline fluctuations are consistent with glacio-eustatic changes in sea level, indicating that the island has not experienced significant uplift during the Quaternary

Observations on the Buchan Karst During High Flow Conditions, 1987, Finlayson Brian, Ellaway Mark

In late July 1984 heavy rain at Buchan in East Gippsland produced widespread flooding and activated the dry valley network and vadose cave system on the Buchan limestones. The heavy rainfall was caused by the movement southwards along the New South Wales coast of a low pressure centre which originated in southeast Queensland. Intensity - frequency - duration analysis of the rainfall event indicates that while the 24 hour fall on the day the flooding occurred had a recurrence interval of only 1.75 years, the 96 hour and the 120 hour duration had recurrence intervals of 3.8 and 8.0 years respectively. The flood peak in the Buchan River had a recurrence interval of 4.3 years. These analyses indicate that the dry valleys and vadose cave systems are hydrologically active quite frequently under present climatic conditions. Water quality observations were made on surface streams and springs in the Buchan area during the flood and the results are compared with similar data collected under low flow conditions.

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