Table A4.

Summary of selected thermodynamic solutions for solid–liquid equilibria for pumices and scorias erupted during the paroxysmal event of 5 April 2003 at Stromboli volcano. See text for details

T(°C)aFoaCEnΔG0I,T (kJ)log aSiO2 (0.5 wt%)log aSiO2 (3.5 wt%)P (MPa) H2O=0.5 wt%P (MPa) H2O=3.5 wt%
Reaction (6)Fo(sol)=Fo(liq)
12000.73960.569033.4680−0.514841
12100.73900.530633.1385−0.5152172
12200.73840.497332.8032−0.4377−0.515751310
12400.73730.468332.1159−0.4379−0.5165317607
12600.73610.442731.4063−0.4380−0.5174611935
13000.73400.420129.9223−0.4383−0.519013031709
ReferencesSack & Ghiorso (1989)Gasparik (1984, 1990)Ghiorso & Sack (1995)Ghiorso & Sack (1995)
XFo=0.83: Table 1 an. 13; melt compositions Table 4, an. 11
Reaction (7)Fo(liq)+SiO2=CEn
12000.7463−37.1423−0.4976219
12100.7420−36.6721−0.4979273
12200.7380−36.1950−0.4210−0.498241329
12400.7343−35.2204−0.4208−0.4987139445
12600.7309−34.2190−0.4206−0.4992244569
13000.7277−32.1374−0.4203−0.5002471839
ReferencesSack & Ghiorso (1989)Ghiorso & Sack (1995)Ghiorso & Sack (1995)
XFo=0.83: Table 1, an. 13; XCEn=0.40: Table 2 an. 12; melt composition Table 4, an. 11