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Table T20. Average and standard deviation of log values calculated for the electrofacies determined by log interpretation.


Olivine gabbro Oxide-rich gabbro Altered zones Fractured zones
APLC (%): 2.0 ± 1.9 2.3 ± 2.5 9.0 ± 4.8 23.4 ± 17.2
LLD (m): 3430 ± 4500 135 ± 395 920 ± 2820 320 ± 610
PEF (barn/e-): 3.9 ± 0.6 5.7 ± 1.5 3.5 ± 0.6 2.6 ± 0.7
RHOB (g/cm3): 2.87 ± 0.05 3.03 ± 0.10 2.72 ± 0.08 2.41 ± 0.31
SIGF (c.u.): 17 ± 2 27 ± 6 19 ± 4 24 ± 5
Vp (km/s): 6.6 ± 0.4 6.4 ± 0.3 6.0 ± 0.5 6.0 ± 0.7
Vs (km/s): 3.7 ± 0.2 3.6 ± 0.1 3.5 ± 0.3 3.7 ± 0.6
N: 2325 593 154 108

Note: APLC = neutron porosity; LLD = electrical resistivity deep; PEF = photoelectric factor; RHOB = density; SIGF = capture cross section; Vp = compressional wave velocity; Vs= shear wave velocity; N = number of depth points. Bold type indicates significant log values.

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