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Table 3 Quantitative analysis of thin sections with microfractures

From: Matrix permeability of reservoir rocks, Ngatamariki geothermal field, Taupo Volcanic Zone, New Zealand

Sample ID Thin section # Parallel microfracture density per mm (\(P\parallel\)) Perpendicular microfracture density per mm (\(P \bot\)) Microfracture area per unit volume (Sv) (mm2/mm3) Anisotropy (\(\varOmega_{2,3}\))
NM8a 2525.5 B TS2 2.66 0.77 4.51 0.66
NM4 1477.2 A TS13 4.67 2.00 8.19 0.51
NM8a 3284.7 C TS14 16.59 13.30 31.77 0.16
NM8a 3280 C TS15 10.74 25.94 28.00 0.85
NM2 1354.2 B TS17 10.24 9.06 19.97 0.09
NM3 1743 A TS19 4.67 4.64 9.32 0.00
NM3 1743 C TS20 1.10 1.29 2.28 0.13