Fig. 12

Scatter plot between (a) Ca²⁺ + Mg²⁺ versus HCO₃⁻ + SO₄²⁻, (b) Ca²⁺ + Mg²⁺ versus HCO₃⁻, (c) Ca²⁺ + Mg²⁺ versus total cations (TZ⁺), (d) Na⁺ + K⁺ versus TZ⁺, (e) Ca²⁺ + Mg²⁺ versus Na⁺ + K⁺, (f) Mg²⁺ / Na⁺ versus Ca²⁺ / Na⁺ relating carbonate and silicate end members (mM)