Environmental and Engineering Geoscience; November 2005; v. 11; no. 4;
p. 293; DOI: 10.2113/11.4.293
© 2005 Association of Engineering Geologists
Introduction to Theme Issue on Tracers in Hydrogeology
CRAIG E. DIVINE1
1 ARCADIS G&M, 630 Plaza Drive, Suite 200, Highlands Ranch, CO 80129
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Hydrogeologic tracing is an intuitive characterization technique that has been applied for a surprisingly long period of time: there are records of chaff being used as a tracer near the Jordan River in approximately 10 A.D., and quantitative experiments using salts and fluorescent dyes were first used in Europe in the late 1800s (see Käss, 1998, Chapter 1). By far, most historical applications of tracers were designed to delineate flow paths and determine transport times in karst systems; however, during the past couple of decades, the discipline of tracer hydrogeology has blossomed with an amazing diversity of applications. Tracers are now employed to investigate various vadose-zone processes, streamaquifer interactions, fracture-flow phenomena, and complex contaminant-transport behavior. Much of this work . . . [Full Text of this Article]
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