Environmental Isotopes in Hydrogeology

Front Cover
CRC Press, Jul 23, 1997 - Science - 352 pages
Groundwater is an increasingly important resource to human populations around the world, and the study and protection of groundwater is an essential part of hydrogeology - the subset of hydrology that concentrates on the subsurface. Environmental isotopes, naturally occurring nuclides in water and solutes, have become fundamental tools for tracing the recharge, history, and contamination of groundwater.
 

Contents

Environmental Isotopes in Hydrogeology
2
Craigs Meteoric Relationship in Global Fresh Waters
36
The T8180 Correlation in Precipitation
64
Local effects on T8¹³
70
Problems
77
Recharge in Arid Regions
86
Recharge from RiverConnected Aquifers
96
Evolution of Carbon in Groundwaters
112
Nitrogen cycling in rural watersheds
148
Source of chloride salinity
155
IDENTIFYING AND DATING MODERN GROUNDWATERS
171
Stable Isotopes and Paleogroundwaters
198
Mechanisms of Isotope Exchange
246
Low Temperature WaterRock Interaction
255
Groundwater
271
Water in the Unsaturated Zone
282

Carbon13 in the Carbonate System
119
Methane in Groundwaters
127
in secondary calcite and paleotemperatures
133
REFERENCES
291
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