Table 1 – Whole-rock geochemistry of the Carboniferous turbidites from the South-Portuguese ZoneSample ST-1 GS-1 GS-3 GS-5 ST-2 GS-2 GS-4 GS-6 SC-6 GS-7 GS-9 GS-11 GS-17 GS-8 GS-10 GS-12 SC-5 GS-18

Formation Mertola Mira

Greywacke Mudstone Greywacke Mudstone

SiO2 62.74 65.93 67.35 67.35 58.77 59.09 60.08 62.45 70.01 69.55 69.74 79.57 86.69 54.47 58.81 60.13 54.1 66.73

Al2O3 15.7 15.33 15.83 15.57 19.21 20.26 19.25 17.59 12.84 14.41 14.3 8.53 5.12 22.39 19.96 22.79 23.12 15.65

Fe2O3t 8.68 7.90 5.81 6.36 6.77 6.91 6.70 6.70 6.70 7.63 6.75 6.51 3.59 7.86 8.28 3.44 6.69 5.66

MnO 0.076 0.07 0.046 0.049 0.045 0.057 0.056 0.046 0.055 0.158 0.066 0.01 0.026 0.162 0.06 0.004 0.063 0.032

MgO 1.94 2.13 1.72 1.86 1.74 2.27 2.47 2.20 1.89 2.11 1.93 0.35 0.85 2.30 2.31 0.41 1.83 1.42

CaO 0.05 0.32 0.21 0.22 0.07 0.25 0.23 0.24 0.19 0.03 0.22 0.02 0.12 0.04 0.11 0.03 0.17 0.06

Na2O 1.46 2.48 2.83 2.59 0.95 0.69 1.80 1.80 1.91 0.44 2.30 0.39 0.12 0.87 0.64 1.22 0.76 0.67

K2O 1.86 1.58 2.06 1.79 3.42 4.00 3.50 2.81 1.37 1.80 1.43 1.05 0.69 3.79 3.46 3.97 4.66 2.91

TiO2 0.835 0.744 0.755 0.691 0.991 0.905 0.929 0.946 0.717 0.890 0.677 0.609 0.495 1.011 0.984 1.144 1.060 0.951

P2O5 0.16 0.13 0.13 0.14 0.13 0.15 0.15 0.16 0.13 0.04 0.14 0.13 0.10 0.06 0.12 0.05 0.12 0.10

LOI 5.78 3.98 4.20 4.33 6.63 6.02 4.95 5.29 3.55 3.86 3.23 3.64 1.91 5.76 5.39 5.62 6.93 5.26

Sc 15 13 15 13 22 23 21 19 12 15 13 9 5 24 24 25 27 16

V 111 108 116 97 169 170 157 144 95 110 102 78 49 195 170 181 202 137

Ba 321 271 414 325 563 641 675 487 245 261 269 172 104 519 651 639 817 364

Sr 93 202 185 169 114 97 100 103 103 47 117 36 29 112 120 148 198 105

Y 26.0 22.9 20.5 24.1 25.0 30.0 26.0 31.4 17.0 27.2 13.9 16.2 17.3 33.1 33.3 35.6 30.0 27.8

Zr 166 193 170 156 162 165 184 214 180 251 149 245 358 170 194 239 165 292

Cr 100 100 90 80 160 120 120 120 80 110 80 100 50 160 130 150 120 100

Ni 80 40 40 50 70 60 70 50 50 100 40 b.d.l. 30 90 60 b.d.l. 40 40

Rb 82 66 78 75 149 173 136 119 61 85 58 49 32 179 145 186 210 123

Nb 11.0 8.4 9.4 13.1 12.0 12.1 19.7 14.5 9.0 14.9 8.5 7.7 8.3 17.3 14.2 18.9 15.0 15.9

Cs 4.5 6.0 5.2 5.8 7.7 17.1 9.2 7.8 2.6 3.1 3.1 1.5 1.5 6.8 7.8 6.6 10.1 5.1

Table 1 – Whole-rock geochemistry of the Carboniferous turbidites from the South-Portuguese Zone (cont.)Sample ST-1 GS-1 GS-3 GS-5 ST-2 GS-2 GS-4 GS-6 SC-6 GS-7 GS-9 GS-11 GS-17 GS-8 GS-10 GS-12 SC-5 GS-18

Formation Mertola Mira

Greywacke Mudstone Greywacke Mudstone

La 32.4 28.6 26.4 26.8 40.5 39.5 43.0 31.3 24.5 25.2 19.4 18.3 22.7 46.7 40.6 51.1 29.0 37.6

Ce 65.4 49.3 55.6 56.7 80.1 80.8 82.5 70.9 45.3 51.2 42.6 37.9 45.3 89.1 85.8 107.0 64.9 77.7

Yb 2.50 2.09 2.11 2.16 2.80 3.13 2.97 2.90 2.00 2.86 1.70 1.60 1.79 3.17 3.36 3.54 3.60 3.00

Hf 4.6 4.5 4.0 3.9 4.4 4.0 4.4 5.0 4.8 6.0 3.6 5.4 7.6 4.1 4.6 5.7 5.5 7.0

Ta 1.00 0.71 0.82 1.28 1.10 1.05 1.15 1.06 0.80 1.11 0.67 0.63 0.72 1.30 1.09 1.55 1.20 1.34

Th 11.60 9.37 9.72 10.70 12.30 15.20 14.60 11.50 9.20 10.20 7.94 7.12 5.12 16.30 14.00 16.90 15.60 12.50

U 3.20 2.82 3.43 3.90 3.40 3.55 3.76 3.72 2.90 3.19 2.52 1.84 2.04 3.80 3.62 5.02 6.30 3.69

Table 1 – Whole-rock geochemistry of the Carboniferous turbidites from the South-Portuguese Zone (cont.)Sample TH-5 AM-3 GS-13 GS-15 AM-4 GS-14 GS-16

Formation Brejeira

Greywacke Mudstone

SiO2 81.45 79.9 71.42 85.84 58.13 60.12 73.8

Al2O3 9.39 9.08 13.94 7.13 21.37 18.69 12.61

Fe2O3t 3.41 5.45 5.58 2.01 6.03 9.17 5.25

MnO 0.014 0.035 0.045 0.003 0.048 0.127 0.009

MgO 0.37 0.89 1.16 0.17 0.81 1.49 0.44

CaO 0.15 0.07 0.12 0.11 0.12 0.05 0.03

Na2O 0.19 0.27 1.09 0.30 0.91 0.29 0.53

K2O 1.51 1.35 2.33 1.50 3.65 3.65 2.50

TiO2 0.622 0.632 1.001 0.670 1.044 0.976 0.935

P2O5 0.12 0.10 0.11 0.16 0.13 0.07 0.08

LOI 2.97 2.64 3.44 2.57 6.21 5.52 4.71

Sc 7 9 14 6 20 19 12

V 63 77 95 63 184 126 106

Ba 205 477 435 235 491 690 392

Sr 51 53 73 60 136 69 105

Y 22 19 39.2 20.9 29 32.5 30.4

Zr 242 266 347 489 204 178 395

Cr 60 70 90 60 130 100 90

Ni 20 40 40 b.d.l. 40 60 b.d.l.

Rb 57 67 98 63 188 153 105

Nb 9.0 9.0 18.2 11.3 16.0 17.4 16.5

Cs 4.8 2.5 3.3 1.9 8.2 5.9 4.1

Table 1 – Whole-rock geochemistry of the Carboniferous turbidites from the South-Portuguese Zone (cont.)Sample TH-5 AM-3 GS-13 GS-15 AM-4 GS-14 GS-16

Formation Brejeira

Greywacke Mudstone

La 26.6 24.4 43.0 28.3 51.1 43.4 41.1

Ce 51.6 49.1 91.0 56.8 99.1 88.4 82.5

Yb 2.20 2.20 3.74 2.29 3.30 3.06 3.20

Hf 6.1 6.8 8.0 10.8 5.6 4.2 9.1

Ta 0.80 0.80 1.45 0.96 1.40 1.37 1.34

Th 7.3 7.3 13.0 8.1 15.8 12.9 11.3

U 1.60 2.10 3.55 2.77 4.00 3.14 3.46