Electrokinetics in Earth Sciences: A Tutorial

Figure 4

Streaming potential coefficient from data collected (in absolute value) on sands and sandstones at pH 7-8 (when available) from Ahmad [100]; Li et al. [67]; Jouniaux and Pozzi [101]; Lorne et al. [86]; Pengra et al. [102]; Guichet et al. [21]; Perrier and Froidefond [103]; Guichet et al. [88]; Ishido and Mizutani [96]; Jaafar et al. [98]. The regression (black line) leads to 𝐶_𝑠0=−1.2×10⁻⁸𝜎_𝑓⁻¹. A zeta potential of −17 mV can be inferred from these collected data from Allègre [24].