Table 1.

Average bulk composition of the historical and recent materials erupted from Stromboli volcano. Melt inclusions hosted in forsteritic olivines of the pumices are from the literature. The table also includes the interstitial glasses of pumices, lavas and scorias

TypeLavaLavaHistorical lavas and scoriasScoriasLava and scoria glasses
Date of eruption2002–2003*20071906–19982002–2011§2002–2011
N analyses1388023112
AveSDAveSDAveSDAveSDAveSD
SiO250.00.4249.60.2249.90.6649.90.5951.61.13
TiO20.920.020.920.020.910.060.900.031.600.19
Al2O317.30.1617.10.1917.60.5417.10.3015.50.92
FeO*8.390.268.130.258.371.038.640.279.550.75
MnO0.160.000.160.000.300.910.160.010.080.10
MgO6.110.076.230.186.051.046.200.253.610.61
CaO11.20.0811.20.0511.10.8511.20.277.61.33
Na2O2.520.062.610.082.741.332.550.122.930.52
K2O2.150.032.140.052.190.142.060.104.160.44
P2O50.550.020.560.010.500.270.530.041.140.30
Sum98.70.4798.10.4999.60.4799.30.7697.71.33
Mg-number0.560.010.580.010.550.070.560.020.360.05
CaO/Al2O30.650.010.650.010.630.060.660.020.490.08
TypeHistorical pumicesRecent pumicesCa-rich melt inclusionsMelt inclusionsPumice glasses
Date of eruption1550–19982003–2007**1998–2007††1998–2007††2003–2007‡‡
N analyses22153579112
AveSDAveSDAveSDAveSDAveSD
SiO249.90.5149.00.3447.50.7047.50.9748.90.92
TiO20.820.050.900.020.890.080.920.111.060.11
Al2O317.00.5917.30.1614.60.5416.10.7317.30.41
FeO*8.530.278.720.297.461.368.571.218.310.53
MnO0.150.010.160.000.150.050.160.050.030.06
MgO6.610.526.370.136.970.586.290.735.820.34
CaO11.70.4911.80.1613.60.5511.70.6212.20.76
Na2O2.450.112.480.102.200.122.330.202.410.34
K2O2.100.161.850.051.500.151.650.212.110.49
P2O50.470.060.540.040.530.150.510.190.100.23
S0.180.060.130.06
Cl0.180.050.140.05
Sum99.30.5599.20.5195.70.8796.01.1498.21.61
Mg-number0.580.020.560.010.630.050.570.050.560.02
CaO/Al2O30.690.050.680.010.930.060.730.050.700.04
XFo86.82.2184.32.55
  • *Landi et al. (2006); Cigolini et al. (2008)

  • Landi et al. (2009); unpublished data

  • Francalanci et al. (2004); Pompilio et al. (2012)

  • §Landi et al. (2006, 2009); Cigolini et al. (2008); unpublished data

  • Cigolini et al. (2008); unpublished data

  • Pompilio et al. (2012)

  • **Métrich et al. (2005, 2010); Cigolini et al. (2008); unpublished data

  • ††Bertagnini et al. (2003, 2008); Métrich et al. (2001, 2005, 2010)

  • ‡‡Métrich et al. (2005, 2010); Cigolini et al. (2008); unpublished data