Table A4.

Summary of the main physical parameters calculated for the isothermal decompression path of the Stromboli primitive melt

Reference meltwt%Starting conditions
SiO247.6T (°C)1170
TiO20.86P (MPa)250
Al2O315.3ρmelt (kg m−3)2694
FeOT7.67ρcrystal (kg m−3)3270
MnO0.14Graphic3−11
MgO6.37Crystals fraction0
CaO12.9
Na2O2.20
K2O1.58
P2O50.49
S0.16
Cl0.15
H2O2.79
CO2 (ppm)1320
Results
P* (MPa)H2O* (wt%)CO2* (ppm)H2O exs* (wt%)CO2 exs* (ppm)ρgas mixture (kg m−3)ρliquid (kg m−3)Gas volume fractionρmelt§ (kg m−3)Crystals fractionβM§ (Pa−1)
2332.6912150.09710446926910.010267703.77−10
2152.5911110.19920844426880.022265904.27−10
2062.5410590.25226043126870.02926960.14.45−10
1972.4810070.30831241726860.03626840.14.83−10
1782.379030.42341638826830.05226580.15.57−10
1592.247990.54652035726800.07226340.26.61−10
1402.116950.67962432226770.09625920.28.12−10
1201.975910.82472828526750.12825650.31.04−9
1091.895390.90378026526730.14725300.31.19−9
1001.804870.98683224526720.17024890.31.40−9
791.623831.16993620126690.22923770.32.03−9
581.412791.383104015226650.31722190.43.17−9
371.141751.653114410026620.46118880.45.98−9
150.76712.03412484226590.71611590.41.69−8
  • *VolatileCalc (Newman & Lowenstern 2002); Holloway (1977); Lange & Carmichael (1990); §Huppert & Woods (2002); exs: exsolved gas concentration.