Some Aspects of Limestone Solution in the Bristol Region

A study of some karst waters in Norway Spatial variation in solute concentrations and equilibrium parameters in limestone dissolution STEIN-ERIK LAUR1TZEN Lauritzen, S.-E. 1981. A study of some karst waters in Norway. Spatial variation in solute concentrations and equilibrium parameters in limestone dissolution. Norsk geogr. Tidsskr. Vol. 35, 1-19. Oslo. ISSN 0029-1951. 104 July and August samples of karst waters from Norway were analysed for their solute contents and for their aggresiveness towards calcium carbonate. The most important cations were Ca and Mg and sometimes Na, while bicarbonate was the most abundant counter-ion. Few waters were in equilibrium with calcium carbonate; they were either under-or supersaturated. There was a clear difference between karst systems above and below the local tree-line, and the investigated areas could be classified according to total hardness, aggressiveness, and altitude. Above the tree-line no supersaturated waters were found and the undersaturated ones saturated towards 80 ppm total hardness, due to aerial PCO2 control only. Below the tree-line, there was a hardness of up to 120 ppm with both under-and supersaturated spring waters, most probably caused by biogenic CO 2 and proton supply. Because of low concentrations of some cationic inhibitors (Pb, Cu, Fe, Zn) in the samples, the disequilibrium of the waters probably reflects flow conditions in the karst aquifer rather than inhibition.

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Some Aspects of Limestone Solution in the Bristol Region

Cited by 4 publications

References 7 publications

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A study of some karst waters in Norway Spatial variation in solute concentrations and equilibrium parameters in limestone dissolution

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