Figure F5. Variations of (A, B) porosity (ϕ), (C, D) electrical tortuosity (τ), and (E, F) electrical cementation index (m) with cataclastic fabric intensity and degree of serpentinization. Cataclastic fabric intensity scale is the same as scale used during shipboard core descriptions (see the “Methods” chapter). Cataclastic fabric intensity and degree of serpentinization are those of intervals from which measured sample originated, as estimated onboard from macroscopic observation of hand samples. Electrical tortuosity (τ) and cementation index (m) are calculated from Revil and Glover (1998) model.
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