Geochemical interpretations of groundwater flow systems

Journal of the American Water Resources Association
By:  and 



Interest in the geochemistry of groundwater is increasing owing to the great number of current projects involving underground liquid waste storage, artificial recharge of potable water, accidental contamination of groundwater bodies, sanitary landfills, and pollution monitoring. Geochemical techniques used to facilitate the understanding of a groundwater system range from extremely simple to those requiring sophisticated theories, equipment, and procedures. An interpretation of the simple trilinear diagram for samples collected from the Yucatan Peninsula of Mexico provided evidence that the fresh-water body was only a few tens of meters thick and was underlain everywhere by an extensive body of salt water. A geochemical technique that has been used effectively to identify the source of salt water in coastal aquifers is measurement of the carbon-14 concentrations. Carbon-14 has been used in a regional carbonate aquifer to determine the velocity of groundwater movement, rates of chemical reactions, and distribution of hydraulic conductivity. The application of principles of irreversible thermodynamics to groundwater systems provides a basis for constructing models which permit prediction, over both time and space, of changes in head distribution and chemical character of the water resulting from imposed stresses on the system. In essence, proper application of irreversible thermodynamics combines the potential theory of Hubbert with principles of reversible chemical thermodynamics, such as solution of carbonate minerals, to describe and explain controlling chemical reactions and processes of groundwater systems.

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Publication type Article
Publication Subtype Journal Article
Title Geochemical interpretations of groundwater flow systems
Series title Journal of the American Water Resources Association
DOI 10.1111/j.1752-1688.1971.tb05021.x
Volume 7
Issue 5
Year Published 1971
Language English
Publisher Wiley
Description 9 p.
First page 1008
Last page 1016
Country Mexico, United States
State Florida, South Carolina
Other Geospatial Hilton Head Island, Yucatan Peninsula
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