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Table 3 XRF analysis and effective atomic number (Zet) results for the rock samples

From: Quantitative determination of the lowest density domain in major fault zones via medical X-ray computed tomography

Faultname Location Material Sample number SiO2 TiO2 Al2O3 Fe2O3 MnO MgO CaO Na2O K2O P2O5  ig.loss*  Total Effective atomic number of rock sample
effective atomic number 11.85 19.13 11.34 23.56 23.26 10.87 18.36 10.42 18.11 12.37 - - -
MTL Hiji Cataclasite HJ8-1 67.05 0.72 13.96 6.57 0.28 3.23 0.61 1.41 2.21 0.10 3.86 100.00 12.30
Fault gouge HJ8-2 61.83 0.71 15.04 7.57 0.14 6.15 1.08 0.43 0.75 0.05 6.25 100.00 12.04
Fault gouge HJ8-3 63.71 0.73 14.07 8.15 0.20 5.23 1.00 0.71 0.85 0.05 5.30 100.00 12.24
Fault gouge HJ8-4 62.28 0.74 15.10 7.73 0.37 5.67 1.11 0.41 0.56 0.08 5.95 100.00 12.12
Cataclasite HJ8-5 67.34 0.62 12.02 6.69 0.20 5.41 0.71 0.43 1.37 0.06 5.15 100.00 12.11
Mizoguchi Protolith MZ-5 66.22 0.60 14.98 5.49 0.13 2.02 1.65 2.25 3.44 0.10 3.10 100.00 12.38
Awano-Tabiki Protolith ATS-2 64.95 0.70 17.10 6.16 0.19 2.05 0.93 2.62 3.80 0.18 1.33 100.00 12.64
ATS-1 57.10 0.76 17.34 9.22 1.89 1.63 0.69 1.58 3.60 0.15 6.04 100.00 12.63
Cataclasite AT-1 56.36 0.33 6.96 3.92 0.15 5.93 10.23 1.23 1.04 0.07 13.78 100.00 11.34
Fault gouge AT-2 59.53 0.69 13.23 4.23 0.10 4.75 4.66 0.56 2.07 0.10 10.08 100.00 11.52
Fault gouge AT-3 52.90 0.54 10.99 5.17 0.15 5.89 8.15 0.21 1.76 0.08 14.16 100.00 11.36
Cataclasite AT-4 57.93 0.73 12.59 8.68 0.12 4.85 1.81 0.36 0.18 0.12 12.63 100.00 11.45
Cataclasite AT-5 56.18 0.52 10.73 6.15 0.13 5.74 5.87 0.07 1.31 0.14 13.16 100.00 11.42
Cataclasite ATR-2,3 70.28 0.68 15.72 3.98 0.06 0.60 0.36 2.86 2.91 0.14 2.41 100.00 12.17
Mylonite ATR-4 65.44 0.52 16.05 3.97 0.07 1.42 3.50 3.33 1.90 0.10 3.70 100.00 12.13
Protolith HA-1 57.97 0.85 16.14 7.51 0.13 3.22 5.95 2.77 1.69 0.15 3.61 100.00 12.72
Tsuruga Oritodani Protolith K-1 76.87 0.07 12.63 1.26 0.04 0.07 0.42 3.59 4.64 0.01 0.39 100.00 12.16
Cataclasite C-3 76.65 0.06 12.78 1.19 0.01 0.12 0.48 3.53 4.50 0.01 0.66 100.00 12.11
Cataclasite C-2 77.48 0.05 12.03 0.87 0.02 0.15 0.84 2.88 4.74 0.01 0.92 100.00 12.10
Fault gouge T-3-1 72.91 0.05 12.06 1.34 0.08 0.40 3.29 1.71 4.31 0.02 3.83 100.00 11.96
Fault gouge T-3-2 76.48 0.05 12.69 1.64 0.01 0.43 0.52 2.12 4.49 0.02 1.57 100.00 12.08
Fault gouge T-3-3 67.55 0.94 12.52 6.48 0.10 1.91 2.43 1.52 2.98 0.22 3.34 100.00 12.54
Cataclasite T-3-4 55.34 3.21 11.60 14.02 0.26 4.37 4.15 1.37 1.37 0.59 3.72 100.00 13.55
Cataclasite C-1 49.73 2.84 13.04 16.39 0.27 4.06 6.67 3.06 0.98 0.80 2.16 100.00 14.10
Protolith T-5 50.24 1.80 11.89 12.31 0.23 6.47 11.35 3.02 1.30 0.18 1.20 100.00 13.96
Yamada Mushu Fault breccia YDA-1,2 70.22 0.37 14.70 4.28 0.12 0.37 1.09 3.20 4.13 0.08 1.45 100.00 12.43
Fault gouge YDA-3 70.97 0.62 16.10 3.32 0.00 0.79 0.77 0.58 2.96 0.23 3.66 100.00 11.99
Cataclasite YDA-4 74.45 0.29 14.51 1.52 0.01 0.46 0.81 2.12 4.07 0.08 1.67 100.00 12.05
Karakawa Protolith YK-1 70.01 0.43 14.98 3.30 0.08 0.82 2.00 3.65 4.04 0.10 0.60 100.00 12.45
  1. * ig.loss indicates ignition loss of each sample