Groundwater Chemical Methods for Recharge Studies - Part 2

eBook - March 1998 - eRetailers

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Describes those geochemical methods which have been used to quantify rates of groundwater recharge.

These notes are restricted to those geochemical methods which have been used to quantify rates of groundwater recharge. There have been two main approaches. The first involves the use of mass balances and mixing cell models, mainly using conservative (non-reacting) dissolved species. The methods range in complexity from simple back-of-the-envelope calculations (zero-dimensional chloride mass balance), to complex three-dimensional computer models. The second approach seeks to estimate the age or residence time of the groundwater by measuring compounds which are radioactive, or whose input to the aquifer has been changing over time (chlorofluorocarbons). + Full description

In this report, the methodology and case examples are described. References to further information on the techniques are also provided.

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Details

ePDF | March 1998
ISBN: 9780643105348
Publisher: CSIRO Publishing
Available from eRetailers

ePUB | March 1998
ISBN: 9780643106031
Publisher: CSIRO Publishing
Available from eRetailers

Contents

Indicators of Recharge Processes
  • Introduction
  • Fractionation
  • The Meteoric Water Line
  • Applications

Mass Balance and Mixing Cell Methods
  • Introduction
  • Chloride Mass Balance
  • Mixing Cell Models

Groundwater Dating Methods and Event Markers
  • Introduction
  • Groundwater Age Distributions in Generic Aquifers
  • Tritium and Chlorine-36
  • Carbon-14
  • Chlorofluorocarbons


Sampling Strategies

Preferential Flow and Fractured Rock

References