PRELIMINARY RESULTS OF A STUDY OF CALCIUM CARBONATE SATURATION OF GROUND WATER IN CENTRAL FLORIDA
作者:
William BACK,
期刊:
International Association of Scientific Hydrology. Bulletin
(Taylor Available online 1963)
卷期:
Volume 8,
issue 3
页码: 43-51
ISSN:0020-6024
年代: 1963
DOI:10.1080/02626666309493336
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The departure of ground water from equilibrium with calcite is being studied in central Florida. Measurements of pH, temperature, and concentration of bicarbonate made in the field are used with standard laboratory analyses of water samples to calculate an ion activity product (Kiap) for calcium carbonate. The calculated Kiap is compared with the equilibrium constant (Keq) for calcite to determine the departure from equilibrium. The calcium concentration is lowest in the area of the highest piezometric surface. Some of the highest concentrations of bicarbonate are in the area of low calcium. In about half of the area of study, the water is undersaturated with respect to calcite. This indicates that solution of limestone can occur several hundred feet below the water table.
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