Karst

The presence of karst in a reclamation area involves some specific issues and challenges [Pg.379]

Water (H2O) falling through the atmosphere and percolating the ground dissolves carbon dioxide (CO2) gas from the air and soil, forming a weak acid-carbonic acid (H2CO3) [Pg.380]

As the carbonic acid infiltrates the ground and contacts the bedrock surfaces, it reacts readily with limestone (CaC03) and/or dolomite [CaMg(C03)3] [Pg.380]

Cavities and voids develop as limestone or dolomite is dissolved into component ions of calcium (Ca ), magnesium (Mg ) and bicarbonate (HC03 ) [Pg.380]

Karst topography is named after the Dinaric Kras Region of western Slovenia and eastern Italy [Ref. www.geography.about.com/od/physicalgeography/a/karst.htm] where the first scientific studies of these phenomena were undertaken. Karst is [Pg.380]

A karst structure . e. a limestone formation which has been eroded resulting in a large scale, open system comparable to a cave... [Pg.59]

The dissolution of carbonates can create spectacular features like those found in many caves. The process is termed karstification. Some reservoirs are related to Karst. Examples are the Bohai Bay Field in China or the Nang Nuan oil field in the Gulf of Thailand. These reservoirs are characterised by high initial production from the large open pore system. However, since the Karst features are connected downdip to the waterleg this is usually followed by rapid and substantial water breakthrough. ... [Pg.88]

Sur cia.1 Deposits. Uraniferous surficial deposits maybe broadly defined as uraniferous sediments, usually of Tertiary to recent age which have not been subjected to deep burial and may or may not have been calcified to some degree. The uranium deposits associated with calcrete, which occur in Australia, Namibia, and Somaha in semiarid areas where water movement is chiefly subterranean, are included in this type. Additional environments for uranium deposition include peat and bog, karst caverns, as well as pedogenic and stmctural fills (15). [Pg.185]

Ratios of U and U to Th and Ra daughters, combined with differences in chemical reactivity have been used to investigate the formation and weathering of limestone in karst soils of the Jura Mountains, and of the mountains in the central part of Switzerland. Uranium contained within calcite is released during weathering, and migrates as stable uranyl(VI) carbonato complexes through the soil. In contrast, the uranium decay products, Th and Ra,... [Pg.313]

Karst, m. mattock, hoe (Geog.) Karst, karst. Kart user-llkdr, m. chartreuse, -pulver, n. Carthusian powder (kermes mineral), -tee, m. Mexican tea (Ckenopodium ambroaioi-dea). [Pg.238]

Hydraulic conductivities vary over a range of 10 cm/s for unfractured igneous and meta-morphic rocks to 2 or 3 cm/s for porous (karst)... [Pg.118]

Fig. 9-11 Photograph of Ayun Tepui, taken from Canaima, Venezuela. The cliffs, which are about 2000 m high, consist of orthoquartzite. The irregular top is a karst topography formed by the slow dissolution of the quartz. It is estimated that the top of this tepui, and similar ones elsewhere on the Guayana Shield, have been exposed since the Jurassic.

Increased amounts of faecal-oral water-borne pathogens (virus, bacteria and protozoa) and microbial indicators (bacterial and viral) have been reported in groundwater bodies [18], karst springs [19, 20], surface freshwater [21-26], marine waters used for bathing [27-29] and shellfish growing [30] as well as tap water [31]. [Pg.154]

Stadler H, Skritek P, Sommer R et al (2008) Microbiological monitoring and automated event sampling at karst springs using LEO-satellites. Water Sci Technol 58 899-909... [Pg.157]

Hayen H, Deschamps AA, Grijpma DW, Feijen J, and Karst U. Liquid chromatographic-mass spectro-metric studies on the in vitro degradation of a poly(ether ester) block copolymer. J Chromatogr A, 2004, 1029, 29-36. [Pg.248]

Pulido-Bosch A, Eopez-Chicano M, Machkova M, et al. 1999. Karst water environmental problems at the town of Dobrich, NE Bulgaria. In Chilton, ed. Groundwater in the urban development Selected city profiles. Rotterdam Balkema, 225-231. [Pg.311]

M. Tesche, EinfluB von Trockenbelastung auf die Ausscheidung von Kohlenhydra-ten dutch die Wurzein von Picea ahies (L.) karst, und anderen Koniferenjung-pflanzen. Flora 163 26 (1974). [Pg.92]

H. Mar.schner, M. Haussling, and E. George, Ammonium and nitrate uptake rates and rhizoshpere-pH in non-mycorrhizal roots of Norway spruce [Picea ahies (L.) Karst.). Trees Struct. Funct. 5 14 (1991). [Pg.187]

B.-M. Finsching and N. Claassen, Root phosphatase activity and. soil organic phosphorus utilization by norway spruce [Pieea ahies (L.) Karst.]. Soil Biol. Bioehem. 28 4 1 (1996). [Pg.191]

M. Hiiussling and H. Marschner, Organic and inorganic soil phosphate and acid phosphatase activity in the rhizosphere of 80-year-old Norway spruce Picea ahies (L.) Karst] trees. Biol. Fertil. Soils (1 128 (1989). [Pg.191]

Growth frequency. In high latitude regions of the globe, periodic advance of glaciers dramatically affected karst regions dripwater flow routes to the cave became permanently frozen, rate of production of soil CO2 was reduced and, in some cases, soil would have been stripped from the surface by ice masses. Harmon et al. (1977) recognized four distinct periods of deposition in the Rocky Mountains of North America... [Pg.434]

Dorale JA, Edwards RL, Ito E, Gonzalez LA (1998) Climate and vegetation history of the Midcontinent from 75 to 25 ka a speleothem record from Crevice Cave, Missonri, USA. Science 282 1871-1874 Dorale JA, Edwards RL, Onac BP (2002) Stable isotopes as enviromnental indicators in speleothems. In Karst Processes and the Carbon Cycle. Ynan, D-X (ed) Geological Pnbhshing Honse, Beijing, China, p 107-120... [Pg.453]

Dreybrodt W (1997) Chemical kinetics, speleothem growth, and climate. In Climate Change The Karst Record. S-E Lauritzen (ed) Karst Waters Institnte Special Pnbhcations 2 Charles Town, West Virginia p... [Pg.453]

Latham AG, Ford DC (1993) The paleomagnetism and rock magnetism of cave and karst deposits. In Applications of Paleomagnetism to Sedimentary Geology. Aissaoui DM, McNeill DF, Hurley NF (eds). SEPM Special Publications. 49 149-155... [Pg.456]

Lauritzen S-E (1991) Karst resources and their conservation in Norway. Norsk Geografisk Tidskrift 45 119-142... [Pg.456]

Lauritzen S-E (1993) Natural errvirorrmental change in karst The qrratemary record. Catena Supp 25 21-40 Lauritzen S-E (1995) High-resolution paleotemperature proxy record for the last interglaciation based on Norwegian speleothems. Quat Res 43 133-146... [Pg.456]

Lauritzen S-E, Onac BP (1995) Uranium-series dating of speleothems from Romartian caves. Theor Appl Karst 8 25-36... [Pg.457]

Postpichl D, Agostini S, Forti P, (Quinif Y (1991) Paleoseismicity from karst sediments "Grotta del Cervo" cave, Central Italy. Tectonophysics 193 33-44... [Pg.458]

KARST J. BESTEMAN Alcohol and Drug Problems Association of North America... [Pg.3]

Toyohashi University of Technology, Toyohashi, Japan Uwe Karst... [Pg.766]

Kuczynska E., Boyer D.G., Shelton D.R., Comparison of immunofluorescence assay and immunomagnetic electrochemiluminescence in detection of Cryptosporidium parvum oocysts in karst water samples, J. Microbiol. Meth. 2003 53 17-26. [Pg.454]

Leopold, B. Oxidation of Wood from Picea abies (L) Karst, with Nitrobenzene... [Pg.107]

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