RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 15, ES1004, doi:10.2205/2015ES000550, 2015

Table 2. Chemical Composition (wt %) of Xenoliths in Basalts From the Roca Negra Volcano and Neighboring Areas
Component RC-1x RC-2x RC-4x RC-5x RC-7x RC-8x RC-9x RC-10/1x RC-10/2x RC-10/3 RC-11x RC-1/5 RC-1/11 RC-1/6 CAADR RN-25 RN-36
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
$\mathrm{SiO_2}$ 45.02 37.98 46.12 35.66 38.86 45.88 39.42 40.54 44.27 40.14 45.18 33.79 41.73 44.97 44.28 38.59 43.35
$\mathrm{TiO_2}$ 1.34 3.58 0.30 3.50 3.90 1.86 2.96 4.00 2.74 2.15 1.76 4.69 2.50 0.05 0.15 2.81 2.94
$\mathrm{Al_2O_3}$ 6.51 11.82 21.19 9.56 13.98 12.16 12.07 13.75 16.03 8.47 7.33 9.89 10.21 1.22 4.09 15.56 11.47
FeO* 10.42 19.10 7.41 23.93 13.65 10.49 14.61 13.41 14.66 14.41 10.56 22.85 15.18 7.49 9.14 15.90 14.53
MnO 0.25 0.25 0.14 0.25 0.15 0.21 0.41 0.18 0.17 0.34 0.19 0.19 0.16 0.13 0.13 0.10 0.07
MgO 18.24 9.92 11.29 9.27 11.29 11.75 13.05 11.62 7.58 13.30 14.32 9.99 14.68 43.71 38.59 11.05 12.57
CaO 13.62 14.16 11.62 14.34 12.68 14.34 10.53 12.53 10.77 13.37 17.81 14.59 14.17 1.41 3.17 12.09 13.05
$\mathrm{Na_2O}$ 0.82 1.37 0.96 0.88 1.69 1.48 1.48 2.14 2.27 1.66 1.11 1.47 0.88 0.36 0.36 2.00 1.72
$\mathrm{K_2O}$ 2.47 0.61 0.33 0.28 1.44 0.36 2.89 0.98 0.68 1.39 0.39 0.40 0.21 0.02 0.03 1.15 0.41
$\mathrm{P_2O_5}$ 0.13 0.16 0.11 0.17 0.17 0.13 0.92 0.16 0.17 0.05 0.12 0.19 0.11 - 0.03 0.25 0.13
$\mathrm{Cr_2O_3}$ 0.024 0.062 0.042 0.060 0.21 0.20 0.06 0.014 0.04 0.03 0.13 0.01 - 0.46 - 0.08 -
NiO 0.012 0.006 0.002 .0045 0.0082 0.013 0.016 0.010 0.06 0.01 0.01 - - - - - -
$\mathrm{V_2O_5}$ 0.006 0.078 0.020 0.060 0.036 .0074 0.074 0.052 0.07 0.05 0.052 - - - - - -
$\mathrm{SO_3}$ 0.045 0.036 0.009 0.39 0.15 0.058 0.12 0.027 0.38 0.02 0.045 - - - - - -
$\mathrm{CO_2}$ 0.01 0.18 0.07 0.32 0.01 0.11 0.04 0.04 0.03 0.03 0.32 - - - - - -
$\mathrm{H_2O}$ 0.19 0.25 0.01 0.86 0.62 0.44 0.23 0.12 0.12 1.11 0.39 - - - - 0.31 0.47
LOI 0.83 0.75 0.29 1.96 1.79 0.87 1.32 0.37 0.39 2.37 0.92 0.89 - - - - -
Total 99.65 99.70 99.76 99.80 99.60 99.63 99.66 99.33 100.43 98.90 99.69 98.95 99.83 99.82 99.97 99.89 100.71
Or 5.47 3.60 1.95 1.65 2.22 13.28 6.19 5.67 4.02 - 2.30 - 1.24 0.12 0.18 - 2.43
Ab - 1.20 8.12 0.34 - - - 3.37 19.21 - 2.13 - 7.02 2.54 3.05 - 8.09
An 6.79 24.30 52.54 21.31 26.31 18.00 17.76 25.08 31.54 11.55 14.00 19.21 23.29 1.92 9.46 30.08 22.37
Lc 7.16 - - - 4.93 2.98 8.54 - - 6.44 - 1.85 - - 5.33 -
Ne 3.76 5.63 - 3.85 7.75 6.78 6.78 7.98 - 7.61 3.94 6.74 0.23 - - 9.17 3.50
Hy - - 17.24 - - - - - 0.40 - - - - 23.93 18.16 - -
Di 46.65 34.95 3.51 38.51 27.69 37.21 37.21 28.05 16.86 37.00 57.27 30.87 36.03 3.96 4.77 20.16 29.02
Ol 16.69 5.96 12.45 6.07 11.18 11.34 11.34 11.17 14.96 19.36 6.39 7.41 13.92 61.53 59.45 19.33 19.30
Cs - - - - - - - - - 2.57 - 3.80 - - - 0.96 -
Mt 8.28 - 2.84 19.07 9.93 6.71 6.71 - 6.76 6.39 6.48 12.78 7.68 5.21 4.55 8.55 11.42
Hm 1.19 16.29 - - - - - 12.24 - - 2.69 6.05 5.11 - - - -
Il 2.45 6.47 0.57 6.65 7.41 3.53 5.62 2.86 5.20 4.08 3.34 8.91 4.75 0.09 0.28 5.34 4.60
Ap 0.31 0.38 0.26 0.40 0.40 2.18 2.18 0.38 0.40 0.12 0.28 0.45 nd nd 0.07 0.59 0.56
Note: 1–13 – xenoliths from the Roca Negra volcano (author's data), 14 – spinel lherzolite xenolith in basalt from Puig de Banya de Boc volcano (author's data), same, Gerona area [Coy-Yll et al., 1974], 16, 17 – xenoliths from the Roca Negra [Tournon, 1968].

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Citation: Grachev A. F. (2015), Pyroxenite xenoliths in basalts of the Roca Negra volcano, Catalonia, Russ. J. Earth Sci., 15, ES1004, doi:10.2205/2015ES000550.
 

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