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. Author manuscript; available in PMC: 2020 Sep 8.
Published in final edited form as: Lithos. 2015 Dec 7;244:74–93. doi: 10.1016/j.lithos.2015.11.028

Table 2 -.

Average element analyses of minerals from the pipes.

Olivine Orthopyroxene Amphibole Phlogopite
Location Bec d’Ovaga Castello di Gavala Fei di Doccio Valmaggia (core)a Valmaggia (rim)a Bec d’Ovaga Castello di Gavala Fei di Doccio Valmaggia (core)a Valmaggia (rim)a Bec d’Ovaga Castello di Gavala Fei di Doccio Valmaggia (core)a Valmaggia (rim)a Bec d’Ovaga Fei di Doccio Valmaggia (core)a Valmaggia (rim)a
Sample BO1 GV1262A FD1 VMG7 I7 BO1 GV1262A FD1 VMG7 I7 BO1 GV1262A FD1 VMG7 I7 BO1 FD1 VMG7 I7
No. of analyses 13 8 4 13 7 6 10 7 7 5 4 14 6 9 6 5 5 10 6
SiO2 (wt%) 39.78 40.04 38.78 39.15 38.24 55.49 55.26 55.25 54.67 53.11 42.94 42.11 44.07 42.23 41.17 38.04 38.83 38.08 36.20
TiO2 0.01 0.01 0.02 0.01 0.00 0.05 0.07 0.06 0.09 0.08 2.62 1.72 1.75 3.02 2.27 3.40 1.30 3.89 4.39
Al2O3 0.01 0.01 0.00 0.00 0.00 2.30 3.16 1.64 2.78 3.04 13.26 14.61 13.89 13.96 13.77 16.09 17.34 16.61 15.93
Cr2O3 0.01 0.01 0.00 0.01 0.00 0.12 0.09 0.06 0.13 0.18 0.53 0.45 0.09 0.62 0.69 0.51 0.14 0.37 0.49
FeO 15.66 15.86 25.50 21.98 22.39 10.48 10.83 15.51 13.80 14.11 5.71 7.02 8.52 9.28 8.71 4.83 6.87 7.32 8.16
MnO 0.25 0.23 0.35 0.29 0.35 0.31 0.26 0.35 0.30 0.31 0.12 0.13 0.19 0.15 0.15 0.05 0.02 0.02 0.05
MgO 45.35 44.51 37.00 38.84 39.05 31.32 30.70 27.94 28.23 28.34 16.70 16.00 15.57 14.43 15.28 21.38 21.13 19.55 20.33
CaO 0.00 0.00 0.00 0.01 0.01 0.34 0.12 0.15 0.19 0.35 11.91 10.69 10.28 10.11 10.76 0.01 0.00 0.03 0.01
Na2O 0.01 0.01 0.01 0.00 0.00 0.01 0.01 0.01 0.04 0.02 2.96 3.38 3.06 3.53 3.22 1.02 1.24 1.82 1.16
K2O 0.00 0.01 0.00 0.00 0.01 0.01 0.01 0.00 0.01 0.00 1.01 0.48 0.22 0.42 0.62 9.01 8.31 7.49 7.77
NiO 0.13 0.21 0.23 0.10 0.08 0.04 0.05 0.02 0.04 0.02 0.10 0.05 0.04 0.02 0.08 0.11 0.14 0.07 0.03
Total 101.23 100.89 101.90 100.41 100.19 100.45 100.57 101.00 100.28 99.60 97.87 96.68 97.70 97.85 97.00 94.47 95.33 95.34 94.66
Mg# 83.8 83.3 72.1 75.9 75.7 84.2 83.5 76.3 78.5 78.2 83.9 80.2 76.5 73.5 75.8 88.8 84.6 82.6 81.6
Li (ppm) 7.46 8.96 21.1 11.3 11.5 1.60 1.31 5.80 1.46 0.62 1.54 1.76 9.41 5.72 2.11 0.54 92.18 6.99 11.8
B 4.68 7.11 1.60 4.47 3.64 3.91 6.62 2.27 3.93 3.33 8.50 11.3 4.56 4.89 5.03 2.99 2.18 3.62 3.64
P 102 160 92.9 110 89.0 48.8 62.4 9.87 23.7 48.9 214 231 205 326 312 21.5 15.8 30.5 24.5
K n.d.b n.d. n.d. n.d. n.d. 72.2 29.5 102 192 17.7 10012 4031 2668 4379 6578 72573 68889 71717 90112
Sc 5.18 5.13 3.32 1.98 2.04 13.1 10.5 6.79 10.1 13.3 62.6 33.1 44.1 48.8 61.4 8.67 2.78 5.12 8.63
Ti 6.98 7.29 23.5 11.9 6.17 374 477 309 728 566 16169 10009 12142 18069 15712 18088 7576 22944 26631
V 0.24 0.15 1.19 0.26 0.40 56.0 51.2 27.7 64.2 137 437 235 350 371 760 277 158 247 555
Cr 1.43 1.31 41.0 1.85 2.35 609 609 338 791 1369 3747 2746 559 3839 4906 2916 1020 2243 3705
Co 96.7 129 175 170 160 37.3 47.4 52.6 55.0 60.9 26.1 31.7 45.3 44.1 40.6 32.5 62.0 57.5 50.5
Ni 1187 1769 1953 741 707 289 356 325 139 206 441 478 509 227 251 762 1062 391 360
Cu 0.43 1.95 0.16 6.44 0.46 0.17 0.53 0.17 0.26 bdl.c 87.4 4.88 1.60 1.44 1.23 3.49 0.49 0.80 2.99
Zn 26.3 33.8 105.9 99.6 74.7 42.1 43.6 86.1 92.4 87.8 16.0 16.8 39.1 34.6 28.0 31.4 49.7 25.4 26.3
Ga 0.02 0.07 0.22 0.01 0.08 5.12 6.32 4.62 9.20 9.95 14.5 10.8 20.6 18.4 18.5 9.58 19.6 15.0 14.8
Ge 2.35 2.48 3.54 3.44 3.45 2.46 3.03 3.23 3.09 3.46 3.04 2.38 3.05 2.66 2.94 0.53 1.45 1.14 1.75
Rb n.d. n.d. n.d. n.d. n.d. 0.067 0.20 0.35 0.65 bdl. 11.9 3.35 2.67 1.52 4.21 1244 226 220 391
Sr n.d. n.d. n.d. n.d. n.d. 1.10 2.57 0.65 2.66 0.60 207 418 120 302 255 47.9 85.6 157 68.7
Y 0.01 0.01 0.05 0.02 0.01 0.39 0.23 0.24 0.67 1.18 42.1 24.4 67.0 71.6 53.1 0.04 0.10 0.07 0.02
Zr 0.03 0.04 0.23 0.07 0.05 4.02 2.71 1.79 5.63 18.0 328 147 218 376 563 3.83 1.22 8.75 16.7
Nb 0.00 0.00 0.02 0.01 0.00 0.09 0.03 0.05 0.14 0.04 19.1 6.7 27.6 19.2 26.9 8.75 10.4 15.3 21.0
Mo 0.01 0.01 0.02 0.02 0.01 0.01 0.02 0.04 0.04 0.04 0.03 0.10 0.16 0.29 0.17 0.02 0.07 0.21 0.10
Cd n.d. n.d. n.d. n.d. n.d. 0.18 0.38 0.27 0.13 bdl. 0.74 2.19 0.90 0.37 0.35 bdl. 0.20 bdl. bdl.
Cs n.d. n.d. n.d. n.d. n.d. 0.01 0.03 0.08 0.03 bdl. 0.38 0.02 0.15 0.04 0.03 75.8 15.5 8.12 12.7
Ba n.d. n.d. n.d. n.d. n.d. 1.85 0.77 2.10 7.20 0.37 340 62.8 62.3 134 201 6811 1825 3495 5022
La n.d. n.d. n.d. n.d. n.d. 0.08 0.09 0.14 0.16 0.15 15.7 9.94 16.4 14.2 20.5 0.03 0.07 0.06 0.05
Ce n.d. n.d. n.d. n.d. n.d. 0.25 0.15 0.24 0.32 0.36 48.6 29.0 59.0 49.4 70.1 0.02 0.14 0.12 0.09
Pr n.d. n.d. n.d. n.d. n.d. 0.03 0.02 0.03 0.04 0.04 7.92 4.35 9.79 8.92 11.3 0.00 0.01 0.05 0.01
Nd n.d. n.d. n.d. n.d. n.d. 0.19 0.08 0.10 0.16 0.16 37.6 20.1 48.8 47.1 51.1 0.01 0.09 0.11 0.04
Sm n.d. n.d. n.d. n.d. n.d. 0.04 0.01 0.02 0.04 0.05 8.61 4.82 13.1 12.9 11.2 0.01 0.02 0.03 0.03
Eu n.d. n.d. n.d. n.d. n.d. 0.02 0.01 0.02 0.03 0.03 2.59 1.61 2.83 3.75 3.20 0.36 0.06 0.09 0.21
Gd n.d. n.d. n.d. n.d. n.d. 0.08 0.04 0.01 0.07 0.08 8.39 4.81 12.8 13.8 9.76 0.07 0.01 0.05 0.02
Tb n.d. n.d. n.d. n.d. n.d. 0.01 0.01 0.01 0.02 0.02 1.22 0.73 2.04 2.08 1.47 0.00 0.00 0.01 0.00
Dy n.d. n.d. n.d. n.d. n.d. 0.06 0.03 0.04 0.10 0.15 7.91 4.65 12.8 13.4 9.28 0.01 0.02 0.02 0.01
Ho n.d. n.d. n.d. n.d. n.d. 0.02 0.01 0.02 0.02 0.04 1.63 0.94 2.53 2.73 1.98 0.00 bdl. 0.01 0.00
Er n.d. n.d. n.d. n.d. n.d. 0.06 0.03 0.04 0.09 0.17 4.25 2.56 6.90 7.39 5.74 0.01 0.02 0.03 0.00
Tm n.d. n.d. n.d. n.d. n.d. 0.01 0.01 0.01 0.02 0.03 0.57 0.36 0.95 1.04 0.85 0.00 0.00 0.01 0.00
Yb n.d. n.d. n.d. n.d. n.d. 0.13 0.06 0.06 0.21 0.38 3.64 2.37 6.16 6.79 5.89 0.01 0.02 0.05 0.02
Lu n.d. n.d. n.d. n.d. n.d. 0.02 0.02 0.01 0.04 0.08 0.53 0.35 0.85 0.97 0.89 0.00 0.00 0.01 0.00
Hf 0.00 0.01 0.01 0.02 0.01 0.15 0.07 0.05 0.21 0.59 7.69 3.41 10.0 8.52 13.1 0.11 0.05 0.29 0.51
Ta 0.00 0.00 bdl. 0.00 0.00 0.01 0.00 0.00 0.01 0.00 1.11 0.39 1.49 0.91 1.34 0.45 0.50 0.83 1.15
Pb 0.06 0.37 0.22 0.07 0.08 0.12 0.62 0.23 0.19 0.04 15.6 47.2 6.07 6.85 6.98 30.5 35.5 15.0 14.2
Th n.d. n.d. n.d. n.d. n.d. 0.06 0.04 0.43 0.08 0.04 0.76 1.20 1.17 0.77 0.88 0.02 0.02 0.25 0.00
U n.d. n.d. n.d. n.d. n.d. 0.01 0.01 0.03 0.04 0.01 0.13 0.27 0.20 0.15 0.18 0.00 0.00 0.01 bdl.

Note: Oxide values are in wt% and were determined by electron microprobe. All other values (i.e. Li to U) are in ppm and were determined by laser ablation ICP-MS. All data are presented in Appendix A-2, including 1-sigma uncertainties and lower levels of detection.

a)

averages only include analyses of mineral cores. All data and a core-rim comparison are presented in Appendices A2 and A3.

b)

n.d. = not determined.

c)

bdl. = below detection limit. The detection limits and 1-sigma error for each analysis are presented in Appendix A2.