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HYDC04 12/5/05 5:36 PM Page 132
132 Chapter Four
Fig. 4.8 (a) Numbered sampling sites and the distribution of basic
hydrochemical water types, (b) tritium concentrations (in TU)
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and (c) C ages (in ka) of Chalk groundwaters in the central part of
the London Basin for the data presented in Table 4.1. After Smith
et al. (1976a).
