Groundwater is an increasingly important water resource in arid or semi-arid regions, as well as a conjunctive resource in humid environments. Because of the long residence time for groundwater in the hydrologic cycle, the last few decades have seen expanding study of groundwater systems. It is therefore important to continually refine our interpretation of hydrogeologic, geochemical and isotopic data to better understand the spatial and temporal movement of water in the subsurface. With our ever-increasing understanding of the magnitude of climate variations during the last 40 000 years and the impact of our industrialised society on groundwater quality and quantity, hydrogeologists will continue to require more information about the rate of groundwater movement on scales from the subannual to millenium. The 5730 year half-life of 14C and the ubiquity of carbon (as organic and inorganic forms) in groundwater, makes it a potentially ideal tracer on these timescales.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Radiocarbon Dating of Groundwater Systems
Robert M. Kalin
- Springer US