Major and trace elements of whole rock 2011-‐2013
Date of Eruption 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11
Sample 1ET11 2ET11 3ET11 4ET11 5ET11 6ET11 7ET11 8ET11 9ET11 10ET11
N° of event 1 1 1 1 1 1 1 1 1 1
SiO2 47.7 47.9 47.8 47.8 48.0 47.9 47.7 47.7 47.9 47.8
TiO2 1.88 1.82 1.85 1.87 1.84 1.84 1.87 1.87 1.82 1.85
Al2O3 16.9 17.2 17.0 16.8 17.1 17.1 17.0 17.0 17.2 17.1
FeOtot 11.2 10.9 11.1 11.2 11.0 11.0 11.1 11.2 10.9 11.1
MgO 4.39 4.32 4.42 4.50 4.33 4.37 4.45 4.39 4.36 4.38
MnO 0.20 0.19 0.20 0.20 0.19 0.19 0.20 0.20 0.19 0.19
CaO 9.90 9.84 10.0 9.90 9.82 9.81 9.86 10.1 9.92 9.98
Na2O 3.91 3.92 3.83 3.84 3.92 3.97 3.89 3.76 3.93 3.85
K2O 2.11 2.06 2.06 2.09 2.07 2.06 2.07 2.07 2.04 2.06
P2O5 0.51 0.52 0.51 0.51 0.53 0.53 0.52 0.50 0.52 0.51
LOI 1.26 1.23 1.25 1.26 1.23 1.23 1.25 1.26 1.22 1.24
Cs 0.90 0.80
Ba 691 677
Rb 47.7 44.3
Sr 1230 1200
U 2.33 2.33
Th 7.70 7.80
Pb 9.00 9.00
Nb 32 31
Ta 1.70 1.80
Zr 199 198
Hf 4.00 4.00
La 59.2 59.7
Ce 113 111
Pr 13.1 13.2
Nd 48.4 48.6
Sm 8.90 9.00
Eu 2.81 2.84
Gd 7.70 7.68
Tb 1.06 1.07
Dy 5.64 5.65
Ho 1.04 1.06
Er 2.72 2.67
Tm 0.37 0.36
Yb 2.20 2.20
Lu 0.39 0.36
Y 26.3 26.9
Co 33.5 33.4
Cr 10.0 10.0
Cu 131 133
Ni 21.0 25.0
Sc 20.0 21.0
V 278 272
Zn 80.0 83.0
Date of Eruption 12-‐Jan-‐11 12-‐Jan-‐11 12-‐Jan-‐11 18-‐Feb-‐11 10-‐Apr-‐11 10-‐Apr-‐11 10-‐Apr-‐11 10-‐Apr-‐11 10-‐Apr-‐11
Sample 11ET11 12ET11 13ET11 a2 a3a a3b1 a3b2 a3c a3d
N° of event 1 1 1 2 3 3 3 3 3
SiO2 47.8 47.7 47.9 47.5 47.7 48.0 47.7 47.8 47.6
TiO2 1.85 1.87 1.83 1.88 1.88 1.84 1.87 1.89 1.88
Al2O3 17.1 16.8 17.1 17.0 16.7 17.2 17.1 16.8 17.0
FeOtot 11.1 11.2 10.9 11.1 10.9 10.9 11.1 11.2 11.3
MgO 4.42 4.51 4.38 4.61 4.82 4.39 4.43 4.47 4.42
MnO 0.19 0.20 0.19 0.21 0.21 0.21 0.22 0.22 0.22
CaO 9.84 10.1 9.81 9.98 10.2 9.87 9.94 9.81 9.92
Na2O 3.90 3.79 3.96 3.88 3.78 3.93 3.93 4.00 3.88
K2O 2.07 2.05 2.07 2.10 2.16 2.04 2.07 2.08 2.09
P2O5 0.52 0.50 0.53 0.51 0.52 0.49 0.50 0.50 0.50
LOI 1.25 1.26 1.23 1.23 1.21 1.21 1.23 1.24 1.25
Cs 0.90 0.90 0.80
Ba 680 655 683
Rb 48.7 47.2 45.4
Sr 1200 1160 1190
U 2.32 2.21 2.34
Th 8.80 8.00 8.10
Pb 7.00 9.00 7.00
Nb 32 26 28
Ta 1.80 1.50 1.70
Zr 195 183 190
Hf 4.00 4.00 4.00
La 60.0 57.0 60.7
Ce 111 107 112
Pr 13.1 12.8 13.2
Nd 48.1 47.9 48.1
Sm 8.90 9.00 9.10
Eu 2.85 2.74 2.77
Gd 7.95 7.54 7.70
Tb 1.21 1.06 1.10
Dy 5.44 5.53 5.41
Ho 1.03 0.99 1.05
Er 2.73 2.66 2.60
Tm 0.36 0.35 0.37
Yb 2.30 2.10 2.20
Lu 0.35 0.33 0.34
Y 26.4 26.0 26.1
Co 35.2 36.3 33.9
Cr 20.0 30.0 20.0
Cu 144 136 125
Ni 30.0 31.0 25.0
Sc 22.0 25.0 22.0
V 298 303 287
Zn 86.0 85.0 95.0
Date of Eruption 10-‐Apr-‐11 12-‐May-‐11 12-‐May-‐11 12-‐May-‐11 12-‐May-‐11 12-‐May-‐11 30-‐Jul-‐11 30-‐Jul-‐11 30-‐Jul-‐11
Sample a3e a4a a4b a4c a4d a4e a8a1 a8a2 a8b1
N° of event 3 4 4 4 4 4 8 8 8
SiO2 47.7 47.3 47.0 47.5 47.3 47.1 47.6 47.8 47.6
TiO2 1.91 1.89 1.91 1.86 1.90 1.91 1.86 1.88 1.90
Al2O3 16.5 17.0 16.8 17.1 16.8 16.7 17.1 17.1 17.1
FeOtot 11.3 11.3 11.6 11.2 11.4 11.6 11.2 11.1 11.3
MgO 4.79 4.49 4.54 4.44 4.53 4.59 4.38 4.20 4.16
MnO 0.22 0.22 0.22 0.21 0.22 0.23 0.22 0.22 0.22
CaO 9.86 10.1 10.3 9.99 10.2 10.2 10.0 9.84 9.88
Na2O 3.85 3.90 3.80 3.93 3.90 3.83 3.85 3.93 3.95
K2O 2.08 2.05 2.03 2.05 2.05 2.05 2.10 2.16 2.17
P2O5 0.50 0.50 0.48 0.50 0.50 0.49 0.51 0.52 0.52
LOI 1.25 1.26 1.29 1.24 1.27 1.29 1.24 1.24 1.26
Cs 0.90 0.90 0.90 1.00
Ba 695 674 680 679
Rb 45.8 46.2 47.0 48.9
Sr 1210 1230 1210 1200
U 2.35 2.26 2.33 2.40
Th 8.20 8.00 8.10 8.60
Pb 8.00 8.00 9.00 10.00
Nb 29 36 29 31
Ta 1.70 1.80 1.70 1.70
Zr 193 197 197 200
Hf 4.00 4.00 4.00 4.00
La 59.9 58.7 59.1 62.5
Ce 112 109 112 117
Pr 13.1 13.1 13.3 13.8
Nd 48.2 47.9 49.2 50.3
Sm 8.90 9.00 9.10 9.50
Eu 2.78 2.75 2.81 2.93
Gd 7.58 7.77 7.93 8.26
Tb 1.04 1.05 1.10 1.13
Dy 5.59 5.59 5.80 5.75
Ho 1.03 1.02 1.08 1.10
Er 2.75 2.62 2.68 2.79
Tm 0.36 0.36 0.36 0.36
Yb 2.20 2.20 2.30 2.30
Lu 0.35 0.41 0.38 0.37
Y 26.4 26.3 26.6 27.5
Co 34.1 35.3 34.2 34.0
Cr 20.0 20.0 20.0 20.0
Cu 128 130 115 114
Ni 23.0 28.0 26.0 31.0
Sc 22.0 22.0 22.0 20.0
V 286 292 279 268
Zn 91.0 85.0 86.0 79.0
Date of Eruption 30-‐Jul-‐11 20-‐Aug-‐11 20-‐Aug-‐11 20-‐Aug-‐11 20-‐Aug-‐11 29-‐Aug-‐11 29-‐Aug-‐11 29-‐Aug-‐11 29-‐Aug-‐11
Sample a8b2 a11a1 a11a2 a11b a11c a12a a12b a12c a12d
N° of event 8 11 11 11 11 12 12 12 12
SiO2 47.7 48.2 47.9 47.7 47.7 47.7 47.7 48.3 48.2
TiO2 1.89 1.83 1.86 1.92 1.89 1.90 1.91 1.85 1.86
Al2O3 17.1 17.3 17.1 16.7 17.1 17.0 16.9 17.3 17.1
FeOtot 11.2 10.7 11.1 11.4 11.2 11.2 11.3 10.8 10.8
MgO 4.23 4.21 4.23 4.33 4.16 4.24 4.31 4.23 4.30
MnO 0.22 0.21 0.22 0.23 0.22 0.23 0.22 0.21 0.21
CaO 9.81 9.50 9.74 9.76 9.77 9.79 9.82 9.41 9.43
Na2O 3.94 4.07 3.96 3.94 4.01 3.95 3.98 4.09 4.09
K2O 2.16 2.18 2.17 2.21 2.20 2.20 2.19 2.20 2.20
P2O5 0.52 0.54 0.53 0.52 0.53 0.51 0.50 0.53 0.52
LOI 1.24 1.19 1.23 1.26 1.24 1.25 1.26 1.20 1.20
Cs 1.00 1.00 1.00 1.00
Ba 722 706 714 666
Rb 50.0 48.8 49.8 49.4
Sr 1200 1240 1220 1160
U 2.41 2.45 2.44 2.38
Th 8.30 7.80 8.30 8.10
Pb 9.00 11.00 9.00 8.00
Nb 26 28 30 30
Ta 1.60 1.70 1.80 1.80
Zr 201 201 202 203
Hf 5.00 4.00 5.00 5.00
La 62.1 62.1 62.7 61.0
Ce 117 116 117 115
Pr 13.6 13.7 13.9 13.5
Nd 49.8 50.6 51.3 50.5
Sm 9.30 9.30 9.60 9.00
Eu 2.84 2.85 2.95 2.80
Gd 8.09 7.90 8.08 8.11
Tb 1.14 1.14 1.15 1.09
Dy 5.80 5.71 5.82 5.72
Ho 1.06 1.08 1.12 1.07
Er 2.87 2.80 2.84 2.70
Tm 0.38 0.38 0.37 0.37
Yb 2.30 2.20 2.30 2.30
Lu 0.40 0.36 0.52 0.36
Y 27.1 26.6 27.2 27.0
Co 30.8 32.6 30.9 31.9
Cr 20.0 20.0 30.0 20.0
Cu 108 110 113 106
Ni 26.0 26.0 27.0 21.0
Sc 19.0 20.0 20.0 18.0
V 258 272 260 250
Zn 84.0 115.0 88.0 81.0
Date of Eruption 8-‐Sep-‐11 8-‐Sep-‐11 8-‐Sep-‐11 8-‐Sep-‐11 5-‐Jan-‐12 5-‐Jan-‐12 4-‐Mar-‐12 18-‐Mar-‐12 18-‐Mar-‐12 18-‐Mar-‐12
Sample a13a1 a13a2 a13b1 a13b2 b31 b32 b33 b41 b42 b43
N° of event 13 13 13 13 19 19 21 22 22 22
SiO2 48.0 48.3 48.6 48.1 46.4 46.4 46.5 47.6 47.8 47.7
TiO2 1.86 1.85 1.86 1.87 2.02 2.00 1.99 1.84 1.83 1.84
Al2O3 17.1 17.2 17.0 17.0 15.9 16.1 16.1 17.6 17.7 17.6
FeOtot 10.9 10.7 10.6 11.0 12.1 11.9 11.8 10.9 10.7 10.9
MgO 4.26 4.29 4.41 4.29 5.46 5.54 5.51 4.21 4.18 4.20
MnO 0.22 0.21 0.21 0.22 0.22 0.22 0.22 0.21 0.21 0.21
CaO 9.68 9.45 9.29 9.55 10.9 10.9 10.7 9.97 9.88 9.97
Na2O 4.04 4.04 4.09 4.06 3.25 3.29 3.32 3.88 3.91 3.91
K2O 2.16 2.19 2.19 2.21 1.99 1.97 1.98 2.07 2.05 2.06
P2O5 0.51 0.52 0.53 0.52 0.44 0.44 0.44 0.49 0.50 0.50
LOI 1.21 1.19 1.18 1.22 1.34 1.33 1.32 1.21 1.19 1.21
Cs 1.00 1.00 0.80 0.80 0.90 0.90
Ba 697 705 610 618 666 684
Rb 49.5 50.1 45.0 44.1 47.7 46.3
Sr 1230 1230 1140 1170 1240 1250
U 2.44 2.42 2.01 2.01 2.23 2.28
Th 8.10 8.40 6.50 6.70 7.90 9.00
Pb 8.00 17.00 7.00 7.00 8.00 9.00
Nb 29 30 27 30 30 28
Ta 1.80 1.80 1.40 1.60 1.60 1.60
Zr 203 204 179 181 195 197
Hf 4.00 5.00 4.00 4.00 4.00 4.00
La 62.1 63.3 52.5 53.2 60.5 57.8
Ce 117 118 101 101 114 110
Pr 13.9 14.0 11.9 12.3 13.9 13.0
Nd 50.9 51.1 44.7 44.9 48.8 47.7
Sm 9.50 9.50 8.70 8.80 9.00 8.50
Eu 2.95 2.89 2.69 2.73 2.84 2.74
Gd 8.21 7.82 7.44 7.45 7.80 7.56
Tb 1.15 1.11 1.04 1.08 1.10 1.05
Dy 5.75 5.83 5.47 5.50 5.54 5.28
Ho 1.06 1.07 1.01 1.02 1.05 1.01
Er 2.78 2.73 2.64 2.55 2.72 2.54
Tm 0.39 0.36 0.35 0.35 0.36 0.35
Yb 2.30 2.30 2.20 2.10 2.30 2.10
Lu 0.41 0.42 0.39 0.35 0.37 0.34
Y 27.1 27.3 25.7 25.4 26.5 25.7
Co 33.2 31.0 37.1 38.3 34.5 34.3
Cr 20.0 20.0 30.0 40.0 10.0 10.0
Cu 112 108 138 144 127 128
Ni 20.0 24.0 32.0 40.0 27.0 23.0
Sc 20.0 19.0 26.0 27.0 20.0 21.0
V 270 270 308 311 271 293
Zn 91.0 83.0 88.0 72.0 74.0 81.0
Date of Eruption 24-‐Apr-‐12 24-‐Apr-‐12 24-‐Apr-‐12 19-‐Feb-‐13 19-‐Feb-‐13 19-‐Feb-‐13 23-‐Feb-‐13 23-‐Feb-‐13 23-‐Feb-‐13
Sample b71 b72 b73 c1a c1b c1c c5a c5b c5c
N° of event 25 25 25 26 26 26 30 30 30
SiO2 47.5 47.5 47.2 47.5 47.4 47.4 47.9 48.0 47.9
TiO2 1.92 1.90 1.93 1.94 1.92 1.93 1.85 1.84 1.89
Al2O3 16.9 17.2 17.0 17.1 17.2 17.1 17.5 17.6 17.1
FeOtot 11.3 11.1 11.4 11.3 11.2 11.2 10.8 10.7 11.0
MgO 4.63 4.53 4.53 4.75 4.79 4.77 4.21 4.24 4.44
MnO 0.22 0.21 0.22 0.21 0.20 0.21 0.21 0.21 0.21
CaO 10.0 10.0 10.2 10.2 10.3 10.2 9.82 9.81 9.74
Na2O 3.76 3.79 3.76 3.37 3.34 3.41 3.90 3.91 3.88
K2O 2.05 2.04 2.06 1.98 1.94 1.99 2.08 2.08 2.12
P2O5 0.49 0.49 0.48 0.47 0.46 0.47 0.49 0.50 0.50
LOI 1.25 1.23 1.27 1.25 1.24 1.25 1.20 1.18 1.22
Cs 0.90 0.90 0.80 0.80 0.90
Ba 681 623 608 652 690
Rb 46.9 47.0 43.9 43.2 46.6
Sr 1270 1150 1170 1290 1240
U 2.32 2.29 2.05 2.05 2.24
Th 7.80 7.40 6.80 7.10 7.50
Pb 8.00 7.00 10.0 10.0 11.0
Nb 34 29 29 28 30
Ta 1.90 1.40 1.70 1.60 1.70
Zr 198 196 183 179 195
Hf 4.00 4.00 4.00 4.00 4.00
La 60.2 58.7 54.8 54.4 58.1
Ce 113 109 103 105 110
Pr 13.5 12.9 12.2 12.3 12.8
Nd 49.4 47.7 45.7 45.5 47.2
Sm 9.00 8.80 8.60 8.60 9.10
Eu 2.91 2.80 2.64 2.70 2.84
Gd 8.02 7.65 7.41 7.23 7.71
Tb 1.13 1.09 1.05 1.05 1.04
Dy 5.73 5.51 5.40 5.22 5.45
Ho 1.05 1.01 1.02 1.01 1.05
Er 2.79 2.67 2.49 2.47 2.66
Tm 0.37 0.36 0.36 0.34 0.37
Yb 2.20 2.20 2.10 2.00 2.20
Lu 0.36 0.54 0.34 0.42 0.37
Y 26.5 26.6 24.8 25.0 26.2
Co 35.7 35.6 33.7 32.8 34.5
Cr 20.0 20.0 <10 <10 20.0
Cu 130 120 122 128 126
Ni 26.0 27.0 25.0 21.0 25.0
Sc 22.0 19.0 20.0 22.0 22.0
V 286 258 265 290 290
Zn 84.0 80.0 88.0 83.0 82.0
Date of Eruption 23-‐Feb-‐13 23-‐Feb-‐13 23-‐Feb-‐13 23-‐Feb-‐13 28-‐Feb-‐13 28-‐Feb-‐13 28-‐Feb-‐13 28-‐Feb-‐13 5-‐Mar-‐13
Sample c5d c5e c5f c5g c6a1 c6a2 c6b c6c c7a1
N° of event 30 30 30 30 31 31 31 31 32
SiO2 47.8 48.0 47.9 48.1 47.9 48.0 48.0 48.0 47.5
TiO2 1.86 1.84 1.85 1.95 1.95 1.96 1.89 1.87 1.94
Al2O3 17.5 17.6 17.5 16.5 16.5 16.5 17.0 17.2 16.4
FeOtot 10.9 10.7 10.8 11.2 11.3 11.3 10.8 10.8 11.1
MgO 4.27 4.09 4.14 4.74 4.83 4.79 4.47 4.43 4.57
MnO 0.21 0.21 0.21 0.22 0.22 0.22 0.21 0.21 0.22
CaO 9.85 9.71 9.80 9.54 9.78 9.62 9.63 9.69 9.49
Na2O 3.88 4.06 4.03 3.79 3.63 3.68 3.97 3.92 4.88
K2O 2.09 2.12 2.06 2.24 2.18 2.21 2.17 2.13 2.22
P2O5 0.49 0.51 0.51 0.52 0.50 0.51 0.54 0.51 0.51
LOI 1.21 1.18 1.20 1.24 1.25 1.25 1.20 1.20 1.23
Cs 0.90 1.00 0.90
Ba 688 693 679
Rb 48.2 49.0 47.2
Sr 1260 1200 1190
U 2.26 2.27 2.23
Th 7.60 7.60 7.50
Pb 21.0 8.00 8.00
Nb 30 30 30
Ta 1.70 1.70 1.60
Zr 197 196 194
Hf 4.00 4.00 4.00
La 58.3 59.3 57.6
Ce 111 111 109
Pr 13.1 13.0 12.9
Nd 48.4 48.0 47.7
Sm 9.30 9.00 8.90
Eu 2.86 2.82 2.80
Gd 7.66 7.71 7.41
Tb 1.10 1.09 1.10
Dy 5.67 5.55 5.42
Ho 1.04 1.05 1.03
Er 2.70 2.68 2.60
Tm 0.37 0.35 0.36
Yb 2.20 2.20 2.20
Lu 0.34 0.36 0.38
Y 26.4 26.6 26.1
Co 32.4 32.7 31.1
Cr 10.0 10.0 10.0
Cu 118 112 108
Ni 21.0 23.0 20.0
Sc 20.0 20.0 19.0
V 280 268 266
Zn 108.0 85.0 84.0
Date of Eruption 5-‐Mar-‐13 5-‐Mar-‐13 5-‐Mar-‐13 16-‐Mar-‐13 16-‐Mar-‐13 16-‐Mar-‐13 16-‐Mar-‐13 3-‐Apr-‐13 3-‐Apr-‐13 3-‐Apr-‐13
Sample c7a2 c7b c7c c8a1 c8a2 c8b1 c8b2 c9a c9b c9c
N° of event 32 32 32 33 33 33 33 34 34 34
SiO2 47.4 48.5 48.1 48.3 48.3 48.2 48.2 47.2 47.2 47.3
TiO2 1.95 1.80 1.85 1.93 1.91 1.93 1.93 1.99 2.01 1.98
Al2O3 16.3 17.7 17.4 16.6 16.7 16.6 16.7 16.4 16.4 16.4
FeOtot 11.1 10.4 10.6 11.1 11.0 11.1 11.1 11.6 11.6 11.5
MgO 4.51 3.95 4.32 4.70 4.75 4.74 4.70 5.01 5.14 5.14
MnO 0.22 0.20 0.21 0.22 0.21 0.22 0.22 0.22 0.22 0.22
CaO 9.46 9.40 9.70 9.44 9.58 9.60 9.50 10.2 10.2 10.2
Na2O 4.99 4.17 3.96 3.74 3.71 3.75 3.76 3.47 3.48 3.46
K2O 2.27 2.18 2.11 2.23 2.19 2.19 2.22 2.05 2.05 2.03
P2O5 0.51 0.55 0.52 0.52 0.51 0.51 0.51 0.48 0.48 0.47
LOI 1.24 1.15 1.18 1.24 1.22 1.23 1.23 1.28 1.29 1.28
Cs 1.00 1.00 1.00 0.80 0.90
Ba 691 702 695 679 657
Rb 48.8 49.8 49.5 44.8 45.2
Sr 1240 1240 1210 1220 1220
U 2.47 2.36 2.29 2.36 2.16
Th 18.4 8.00 7.50 7.80 7.00
Pb 11.0 8.00 7.00 10.0 8.00
Nb 32 32 34 31 29
Ta 1.80 1.80 2.00 1.70 1.60
Zr 203 201 206 188 193
Hf 4.00 4.00 5.00 4.00 4.00
La 74.7 60.8 59.4 57.7 55.5
Ce 125 113 111 109 106
Pr 15.8 13.5 13.2 12.9 12.7
Nd 55.3 49.3 48.1 47.5 46.4
Sm 10.40 9.20 8.90 9.00 8.80
Eu 2.84 2.84 2.77 2.75 2.78
Gd 8.53 7.72 7.81 7.88 7.53
Tb 1.17 1.12 1.09 1.08 1.05
Dy 6.30 5.78 5.62 5.67 5.49
Ho 1.11 1.05 1.04 1.05 1.02
Er 2.77 2.71 2.75 2.69 2.64
Tm 0.38 0.37 0.38 0.38 0.35
Yb 2.30 2.30 2.20 2.10 2.20
Lu 0.48 0.38 0.47 0.34 0.37
Y 29.4 27.0 27.3 26.4 25.7
Co 32.3 30.7 32.6 34.4 34.7
Cr 10.0 10.0 10.0 20.0 20.0
Cu 129 110 105 137 131
Ni 20.0 24.0 26.0 24.0 25.0
Sc 20.0 19.0 20.0 23.0 22.0
V 271 273 269 296 288
Zn 92.0 87.0 100.0 81.0 76.0
Date of Eruption 12-‐Apr-‐13 12-‐Apr-‐13 12-‐Apr-‐13 18-‐Apr-‐13 18-‐Apr-‐13 18-‐Apr-‐13 18-‐Apr-‐13 20-‐Apr-‐13 20-‐Apr-‐13
Sample c10a c10b c10c c11a1 c11a2 c11b1 c11b2 c12a c12b
N° of event 35 35 35 36 36 36 36 37 37
SiO2 47.6 47.5 47.5 47.6 47.5 47.6 47.6 48.0 48.0
TiO2 1.93 1.93 1.95 1.96 1.96 1.96 1.96 1.94 1.94
Al2O3 17.4 17.4 17.3 16.5 16.5 16.5 16.5 16.5 16.6
FeOtot 11.0 11.1 11.2 11.3 11.4 11.4 11.3 11.2 11.2
MgO 4.49 4.49 4.41 5.00 5.09 5.00 5.01 4.88 4.86
MnO 0.21 0.21 0.21 0.21 0.22 0.21 0.22 0.22 0.22
CaO 9.81 9.84 9.89 9.95 9.94 9.92 9.98 9.68 9.66
Na2O 3.71 3.68 3.67 3.59 3.56 3.57 3.55 3.63 3.65
K2O 2.12 2.12 2.14 2.11 2.09 2.12 2.10 2.18 2.18
P2O5 0.50 0.50 0.50 0.49 0.48 0.49 0.49 0.51 0.50
LOI 1.23 1.23 1.24 1.26 1.26 1.26 1.26 1.25 1.24
Cs 0.90 0.90 0.90 0.90 1.00 0.90
Ba 709 707 707 684 715 700
Rb 47.3 48.2 46.4 46.5 49.7 48.2
Sr 1310 1300 1150 1210 1220 1220
U 2.25 2.32 2.26 2.28 2.30 2.33
Th 7.60 7.80 7.30 7.50 7.90 7.90
Pb 7.00 9.00 9.00 7.00 10.0 9.00
Nb 34 31 31 36 38 38
Ta 1.90 1.80 1.60 1.90 2.10 2.00
Zr 195 197 197 198 205 199
Hf 4.00 4.00 4.00 4.00 5.00 5.00
La 57.2 60.3 57.7 57.4 60.2 59.1
Ce 109 111 108 108 113 113
Pr 12.6 13.4 12.9 12.8 13.4 13.4
Nd 46.3 49.0 47.5 47.3 49.8 49.5
Sm 8.60 9.10 8.80 9.00 9.20 9.40
Eu 2.72 2.80 2.79 2.77 2.85 2.87
Gd 7.41 7.68 7.48 7.66 7.91 7.93
Tb 1.05 1.15 1.05 1.08 1.13 1.13
Dy 5.45 5.69 5.42 5.45 5.70 5.64
Ho 1.00 1.05 1.03 1.02 1.08 1.03
Er 2.68 2.64 2.68 2.63 2.80 2.69
Tm 0.36 0.38 0.34 0.36 0.38 0.38
Yb 2.10 2.20 2.20 2.20 2.30 2.30
Lu 0.37 0.40 0.44 0.36 0.39 0.38
Y 25.6 26.0 26.6 26.7 27.3 26.5
Co 32.2 33.2 33.6 35.0 33.6 32.8
Cr <10 10.0 20.0 20.0 10.0 10.0
Cu 141 142 130 127 118 117
Ni 19.0 21.0 25.0 29.0 25.0 23.0
Sc 19.0 19.0 22.0 21.0 20.0 20.0
V 275 280 292 290 285 272
Zn 85.0 80.0 90.0 80.0 82.0 84.0
Date of Eruption 20-‐Apr-‐13 27-‐Apr-‐13 27-‐Apr-‐13 27-‐Apr-‐13
Sample c12c c13a c13b c13c
N° of event 37 38 38 38
SiO2 48.1 48.2 48.2 48.4
TiO2 1.94 1.94 1.94 1.93
Al2O3 16.6 16.6 16.6 16.7
FeOtot 11.1 11.1 11.1 11.0
MgO 4.81 4.80 4.84 4.71
MnO 0.22 0.22 0.22 0.22
CaO 9.57 9.52 9.61 9.38
Na2O 3.70 3.70 3.64 3.75
K2O 2.20 2.19 2.17 2.23
P2O5 0.51 0.51 0.51 0.52
LOI 1.24 1.23 1.23 1.23
Cs 1.00 1.00
Ba 726 699
Rb 49.0 48.7
Sr 1220 1210
U 2.32 2.35
Th 7.80 7.70
Pb 10.0 8.00
Nb 37 35
Ta 2.00 1.90
Zr 206 209
Hf 5.00 5.00
La 59.2 58.8
Ce 112 111
Pr 13.2 13.2
Nd 49.1 48.1
Sm 9.20 8.90
Eu 2.86 2.85
Gd 7.91 7.78
Tb 1.13 1.13
Dy 5.79 5.62
Ho 1.09 1.08
Er 2.87 2.63
Tm 0.36 0.38
Yb 2.30 2.30
Lu 0.46 0.41
Y 26.6 26.6
Co 31.7 32.4
Cr <10 10.0
Cu 114 109
Ni 21.0 21.0
Sc 20.0 20.0
V 271 269
Zn 83.0 80.0
Harker diagrams and compositional variation through time (major, trace elements) for the 2011-2013 volcanic rocks erupted at Mt. Etna
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