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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 distortion is a change in shape of a solid body.?

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.
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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 china. (Keyword) returned 55 results for the whole karstbase:
Showing 1 to 15 of 55
Origination of stone forests in China., 1986,
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Song Linhua
The stone forests are widely distributed in the tropical and subtropical climatic areas. The stone forests may be divided into hilltop stone forest, hill slope stone forest and the stone forest in the depressions or valleys. The conditions for stone forest development should be (1) thick and pure limestone, (2) gentle dipping of limestone formation, generally less than 150, (3) a lot of vertical joint and fissure networks, (4) the soil covering on the limestone surface inhomogeneous, thick in the fissures and thin on the rock top surface, and (5) the soil should be wet and contain rich organic materials and CO2. In the above conditions, the stone teeth may develop to the stone forest. If lack of organic soil, low humidity and stable depth of soil erosion zone occurs, only the stone teeth are developed.

Cave dams of the Guanyan System, Guangxi, China, 1987,
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Smart P. L. , Waltham A. C. ,
With well over 1 million km2 of carbonate rocks exposed at the surface, and a history of exploitation spanning in excess of 2000 years, the Chinese probably have more experience than any other people in developing the water resources of carbonate aquifers. Interestingly, many of the smaller scale projects are carried out by local farmers and co-operatives, with little recourse to the advice of professional engineers and hydrologists, although even in large regional schemes, much local expertise and labour is involved (see for example Hegtkcar 1976). While recently some of the Chinese work on karst hydrology has become available in the west (Song 1981; Song et al 1983; Yuan 1981, ) much of the practical experience resulting from these local and small scale developments remains unpublished even in China. We were therefore very fortunate to be able to examine the engineering works associated with the Guanyan cave system, just south of Guilin, Guangxi Province, SE China, during a recent joint venture with the Institute of Karst Research, Ministry of Geology, Guilin. The Guanyan (Crown Cave) system is developed in a sequence of relatively pure, predominantly finegrained limestones and dolomites over 2600 m thick, and ranging from Devonian to Carboniferous in age (Yuan 1980). These are folded into thrust faulted, NW-SE-trending folds, but dips are generally less than 30{degrees}. The underlying impermeable shales, siltstones and sandstones form a mountainous terrain rising to 1400 m above sea-level east of the limestone, and provide the headwaters for streams feeding into the caves (Fig. ... This 250-word extract was created in the absence of an abstract

Le gographe chinois Xu Xiake, un prcurseur de la karstologie et de la splologie, 1993,
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Cai Z. , Yang W. , Maire R.
Xu Xiake (1587-1641), the Chinese explorer and geographer, began in 1637 an astonishing four-year long journey in southwest China. Xu Xiake travels, written as a diary, is made up of 600 000 chinese letters: it is a geographical encyclopaedia belonging to the ancient masterpieces of China. Descriptions of the karstic geomorphology amount to more than 100 000 letters, that is to say the equivalent of 250 pages. He visited 288 karstic caves and described 22 types of karstic landforms. Xu Xiakes contribution to the study of the subterranean world is extremely valuable: deposits, underground rivers and lakes, climate, source of water, exploitation of the caves by humans and exploration techniques.

A new Jujiroa from Sichuan, China (Coleoptera, Carabidae), 1994,
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Taglianti Augusto Vigna
Jujiroa iolandae n.sp. is described from Liujia Cave in China (Sichuan, near Huaying, between Chongqing and Nanchong). Strongly depigmented, with very reduced eyes and markedly elongated appendages, it is well distinguishable from Taiwanese and Japanese species, and from the two previously known species from China. One of these, J. suensoni from Shangxi, is quite different (its doubtful taxonomic position is perhaps to be referred to another genus or lineage); the other, J. rufescens from Jiangxi (Fujian), is more related to the new species, that differs by the longer and more sinuate pronotum, with fore and hind angles much more produced, by the presence of basal pore and the absence of first dorsal seta on elytra, and by the apical tooth acute, long and spine-like. The new species extends well westwards the range of the genus, hitherto extending from southeastern Japan (five described species from Honshu, Shikoku, Kyushu), to Taiwan (seven species) and, in front, to Chinese Fujian.

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Deng As, Ju Jh,
There are many varieties of geological hazard in China which are widely dispersed. Land subsidence is one such hazard and occurs mainly in the coastal cities of east China. Sinkhole collapses are mainly found near those cities of east and middle China that have karst water and karst water-impregnated ore deposits. Earth fissures also occur in east and middle China. All these geological hazards have a great influence upon the construction of engineering works. Though the causes of the hazards may be different, a major contributor is human economic activity. Therefore, a major countermeasure is to control human economic development

Les Forts de Pierre ou Stone forests de Lunan (Yunnan, Chine), 1996,
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Ford D. , Salomon J. N. , Williams P.
"Stone forests " are well known in Southern China. We describe the type site in Lunan County on the Yunnan Plateau at about 1800 m. "Stone forests " are a spectacular form of karren, similar to the "tsingy" of Madagascar or pinnacles of Mulu. In Yunnan they are developed in massive Permian limestones and dolomites. The "Stone forests" are high fluted towers, typically more ruiniform in dolostones, that attain 20-30m in height, exceptionally 40m. They occur in patches of several square kilometres in extent in a rolling polygonal karst landscape with about 150 m local relief Three phases of evoluti6n are recognized spanning 250 Ma from the Permian until the present: 1) Mid Permian karstification and burial by Upper Permian continental basalts, 2) Mesozoic erosion and re-karstification, then burial in the Eocene by thick continental deposits, 3) Late Tertiary and Quaternary exhumation and re-karstification. No other "Stone forests" in the world show this complexity of evolution.

Gypsum karst in China., 1996,
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Cooper Anthony, Yaoru Lu
The Peoples Republic of China has the largest gypsum resources in the world and a long history of their exploitation. The gypsum deposits range in age from Pre-Cambrian to Quaternary and their genesis includes marine, lacustrine, thermal (volcanic and metasomatic), metamorphic and secondary deposits. The gypsum is commonly associated with other soluble rocks such as carbonates and salt. These geological conditions, regional climate differences and tectonic setting strongly influence the karstification process resulting in several karst types in China. Well developed gypsum palaeokarst and some modem gypsum karst is present in the Fengfeng Formation (Ordovician) gypsum of the Shanxi and Hebei Provinces. Collapse columns filled with breccia emanate upwards from this karst and affect the overlying coalfields causing difficult and hazardous mining conditions. Gypsum karst is also recorded in the middle Cambrian strata of Guizhou Province and the Triassic strata of Guizhou and Sichuan Provinces. Gypsum-salt lake karst has developed in the Pleistocene to Recent enclosed basin deposits within the Qinghai-Xizang (Tibet) Plateau.

A new genus and species of troglobitic Trechinae (Coleoptera, Carabidae) from southern China., 1996,
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Taglianti Augusto Vigna
Guizhaphaenops zorzini n.gen.n.sp. is described from Anjia Yan Cave, Shuicheng County, Guizhou (China). This highly specialized troglobite species is easily recognizable from the other cave dwelling Trechini from China for the main morphological external characters, but its true relationships remain uncertain, the male being still unknown. Similar in habitus to Cathaiaphaenops and to Sinotroglodytes, the new taxon is much more related to the latter, being dorsally glabrous and having the mentum fused with the submentum, with a deep oval fovea, but it differs in its elongated head, with incomplete frontal furrows and without posterior frontal setae.

A morphological analysis of Tibetan limestone pinnacles: Are they remnants of tropical karst towers and cones?, 1996,
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Zhang D. A. ,
Limestone pinnacles on mountain slopes in Tibet were measured for morphological analysis and the results were compared with those from tropical towers and cones on karst mountain slopes of Shuicheng, southwest China. In the form analyses, the symmetric products (P) of Tibetan pinnacles present large differences between individual pinnacles. The plan forms, represented by long/short axes ratios (R(L/S)), are mostly irregular and scattered and the diameter/height ratios (R(dfh)) reveal that the Tibetan I features could belong to any three cone or tower karat types, according to Balaze's classification of karst towers. The direction of pinnacle development seems to be primarily related to slope aspect and to geological structure. The morphological structure and orientation analyses show that pinnacle development is largely controlled by lithological and stratigraphic conditions. The closed water catchment structure, which is a basic feature in karat areas, has not been found in the limestone pinnacle areas of Tibet. The results of the form and structure analyses for the Tibetan pinnacles differ from those for tropical and subtropical karst areas. Further analysis indicates that Tibetan limestone pinnacles were formed by strong physical weathering under periglacial conditions. Four kinds of morphogenesis of the pinnacles are suggested

A stepped karst unconformity as an Early Silurian rocky shoreline in Guizhou Province (South China), 1996,
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Jiayu R. , Johnson M. E. ,
There succeeded by marine strata, karst unconformities signify a former rocky coastline. Such relationships may help sort out relative sea-level changes and aspects of local geography controlling facies distribution. An exceptional example of an early Silurian karst shore is well exposed near the village of Wudang in central Guizhou Province, near the capital city of Guiyang in South China. Here the Lower Silurian Kaochaitien Formation oversteps 63 m of paleotopographic relief in limestones belonging to the Llanvirn Guniutan Formation and Caradoc to early Ashgill Huanghuachong Formation (Ordovician). The corresponding rise in sea level took place coeval with tectonic uplift, as confirmed by a regionally diachronous relationship in the Ordovician-Silurian boundary across a 250 km track from central to northern Guizhou Province. The change in sea level also fits with a global rise of sea level in late Aeronian (later Llandovery, early Silurian) time. Borings of the ichnofossil, Trypanites, are reported from the karst surface of the Huanghuachong Formation and Silurian strata hh sink holes in this unit over 5 m deep. The Silurian karst shoreline near Wudang is integrated with other regional data to construct a paleogeographic map covering the northern half of Guizhou Province

Induced seismicity at Wujiangdu Reservoir, China: A case induced in the Karst area, 1996,
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Hu Y. L. , Liu Z. Y. , Yang Q. Y. , Chen X. C. , Hu P. , Ma W. T. , Lei J. ,
To date 19 cases of reservoir-induced seismicity have been acknowledged in China and 15 of them are associated with karst. The Wujiangdu case is a typical one induced in the karst area. The dam with a height of 165 m is the highest built in a karst area in China. Seismic activity has been successively induced in five reservoir segments seven months after the impoundment in 1979. A temporary seismic network consisting of 8 stations was set up in,ne of the segments some 40 km upstream from the dam. The results indicate that epicenters were distributed along the immediate banks, composed of karstified carbonate, and focal depths were only several hundred meters. Most of the focal mechanisms were of thrust and normal faulting. It is suggested that karst may be an important factor in inducing seismicity. It can provide an hydraulic connection to change the saturation and pressure and also weak planes for dislocation to induce seismicity

Strategic ground water management for the reduction of karst land collapse hazard in Tangshan, China, 1997,
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Wang H. T. , Li Y. X. , Wang E. Z. , Zhao Z. Z. ,
Karst land collapse is a geological hazard caused mainly by human activities such as the pumping of ground water. The present study is aimed at determining a management strategy to minimize the risk of karst land collapse in the urban area of Tangshan, China. A method of groundwater management for multi-aquifer systems with groundwater confined and unconfined interchange properties has been developed. A groundwater simulation model and a management model are constructed for the studied area. The data used by the simulation and management models include the geometry of the aquifer systems, the parameters of hydrogeology, the distribution of recharge, and discharge in the simulation period and the historical water table elevations. The results of the model calculations show that the total balance between recharge and discharge for both Quaternary and bedrock aquifers is 4.7 x 106 m(3) in the period from November 1989 to October 1990. The optimal annual average pumping rate from the underlying bedrock aquifer is some 25.8 x 10(6) m(3), which is 54.4% of that which was pumped out of the aquifer in the hydrological year of 1990. If the management plan is carried out, the groundwater level in the bedrock aquifer will recover its confined state in most of the areas at risk of land collapse. This is the most resistant state to collapse in terms of groundwater flow.

Sensitivity of karst process to environmental change along the Pep II transect, 1997,
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Yuan D. X. ,
It has been known since as early as the last century that karst formation is a geologic process related to chemical reaction, but not until the last couple of decades were karst processes viewed as being sensitive to environmental change. The direction and intensity of karst processes are controlled by environmental factors such as temperature, climate, hydrology, vegetation, geology, and the openness of the system to the atmosphere. Accordingly, karst features, as a product of the carbon cycle, differ in space and time. This is clearly evident from the world karst correlation project, IGCP 299. There is a sharp contrast between karst types on both sides of the Qingling Mountain range of central China. Semi-arid karst is located to the north, and humid subtropical karst to the south. Karst features are capable of recording high resolution paleoclimatic change. AMS C-14, isotope and geochemical studies of thin laminae from a giant stalagmite located near Guilin, in southern China, have clearly identified rapid climate changes during the past 40 ka. In karst areas with active neotectonism, huge deposits of calcareous travertine record the amount of deeply sourced CO2 emitted into the atmosphere and can aid studies on modem tectonism because of the association of calcareous travertine with active faults.

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Yaoru Lu, Cooper A. H.

China has the worlds largest proven gypsum (CaSO4.2H2O) resources in the world. The gypsum ranges from pre-Cambrian to Quaternary in age and occurs in varied geological environments. The rapid dissolution rate of gypsum means that gypsum karst development can be very fast, resulting in progressively worsening geohazards. This paper reviews the characteristics of the gypsum deposits and their associated geohazards in China.Three kinds of gypsum karst are discussed. These include karst in massive thick beds of gypsum, karst in thin-bedded gypsum and compound karst in gypsum and carbonate rocks. Some site-specific problems are also examined. In the Shanxi coalfield, breccia pipes, or collapse columns, caused by the dissolution of Ordovician gypsum, penetrate the overlying Carboniferous and Permian coal-bearing sequences resulting in difficult coal mining conditions. In Guizhou Province re-activated gypsum karst is associated with leakage of water through the gypsum from a reservoir. Remedial engineering works have been carried out, but leakage still occurs. Groundwater abstraction from gypsiferous sequences is also problematical. It can yield sulphate-polluted water and cause subsidence problems both through gypsum dissolution and groundwater drawdown.

Sinkholes in karst mining areas in China and some methods of prevention, 1999,
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Li G. Y. , Zhou W. F. ,
Mining of coal, lead and zinc, gold, and iron ore deposits in karst areas has been closely associated with sinkholes in China. Surface collapse causes an increase in mine water drainage and the possibility of major water inflow from karst aquifers, which threatens the environment in mining areas and endangers the mine safety. A combination of factors including soil weight, buoyancy, suffusion process and vacuum suction can contribute to the sinkhole formation. The key measures to prevent sinkholes in mining areas are to control the amount of mine drainage, reduce water level fluctuation, seal-off karst conduits and subsurface cavities in the overlying soil, prevent water inflow, and/or to increase gas pressure in the karst conduits. (C) 1999 Elsevier Science B.V. All rights reserved

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