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KarstBase a bibliography database in karst and cave science.
Featured articles from Cave & Karst Science Journals
Characterization of minothems at Libiola (NW Italy): morphological, mineralogical, and geochemical study, Carbone Cristina; Dinelli Enrico; De Waele Jo
Chemistry and Karst, White, William B.
The karst paradigm: changes, trends and perspectives, Klimchouk, Alexander
Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method, Sanna, Laura; De Waele, Jo; Calaforra, José Maria; Forti, Paolo
The use of damaged speleothems and in situ fault displacement monitoring to characterise active tectonic structures: an example from Zapadni Cave, Czech Republic , Briestensky, Milos; Stemberk, Josef; Rowberry, Matt D.;
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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PO BOX 314, ST ALBANS AL1 4ZG, HERTS, ENGLAND
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Chemical Speciation and Bioavailability, 2003, Vol 15, Issue 3, p. 59-66
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Cadmium and zinc adsorption maxima of geochemically anomalous soils (Oxisols) in Jamaica
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Davies Be, Vaughan J, Lalor Gc, Vutchkov M,
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Abstract:
Soil samples were collected from a Miocene limestone area of Jamaica (Manchester Parish) where unusual accumulations of Cd and other metals have been described previously. The source of the metals is natural (geological). The soils are aluminous Oxisols and, geochemically, are closely similar to local karst bauxite deposits. For comparison a karst bauxite sample was collected from Alabama (USA) and an Ultisol sample from South Carolina (USA). All the Jamaican soils were in the pH range neutral to slightly alkaline and CaCO3 contents ranged from 1.3 to 23.1 %. Mean total Cd = 102.5 mg/kg (range 13.6-191.8 mg/kg) and mean Zn = 362.6 (range = 125.8-683.3) mg/kg. These values are higher than world averages. The mean readily exchangeable Cd was 0.05 (range 0.01-0.15) mmol/kg and for Zn mean = 0.02 (range 0.01-0.02) mmol/kg. Adsorption data were obtained experimentally and modelled using the Langmuir isotherm. For the Manchester soils the mean Cd adsorption maximum was 9.15 (range 2.26-32.0) mmol/kg; the values were higher than the karst bauxite sample (0.08 mmol/kg) or the Ultisol (0.08 mmol/kg). Reliable Zn isotherms were not obtained for all soils; for three Manchester soils the mean Zn sorption maximum was 2.99 mmol/kg compared with 3.13 mmol/kg for Cd in the same three soils. Mean Al and Fe values are 38.7% Al2O3 and 17.7% Fe2O3 compared with the Ultisol (14.5% Al2O3,11.3% Fe2O3) and the bauxite (52.6% Al2O3, 0.7%Fe2O3). Interpretation of the major element values and the known mineralogy of the soils implies that the high adsorption maxima of the Manchester soils can best be explained by their calcareous nature. It is concluded that the Manchester soils have ample adsorption capacity to trap any incoming Cd or Zn solutes
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Keywords: accumulation, adsorption, al, alabama, area, bauxite, cadmium, capacity, cd, crust, deposit, deposits, elements, fe, genesis, karst, langmuir isotherms, limestone, major-element, metals, mineralogy, miocene, oxisol, ph, range, sample, soil, soils, sorption, source, south, south-carolina, surface, time, times, tropics, usa, values, world, zinc, zn,
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