Figure 5:
Plot of δ
2
H against δ
18
0 for ground and river water samples showing the deviation from the GMWL and LMWL, GMWL: δ
2
H=8•δ
18
O+10; LMWL Pretoria: δ
2
H=6.5•δ
18
O+7.8; (IAEA/WMO, 2004).
