Letter to the Editor

Comment on “Examination of a Theoretical Model of Streaming Potential Coupling Coefficient”

Figure 1

A comparison of the three equations for modelling streaming potential coefficient using a variable zeta potential calculated with Revil et al.’s [9] approach (solid lines) and constraining the zeta potential to a constant value equal to (a) −15 mV (dashed lines) and (b) −45 mV (dashed lines), pH = 6.77. Protonic surface conduction = 6 × 10−8 S.
(a)
(b)