Disk output from **MELTS** comes in two varieties. A **comprehensive output file** named **melts.out** records a continuous record of the evolution of the system at every stage in a model calculation. If **MELTS** version **1.1.3** or greater is running, then the results written to **melts.out** are also neatly formatted into one or more **tabular output files** named **melts-liquid.tbl** and *solid phase name.***.tbl**

Here is an example of a typical entry in the **melts.out** file. Click on an item of interest to get a description.

**********----------********** Title: Equilibrium Crystallization of MORB T = 1185.00 (C) P = 0.500 (kbars) log(10) f O2 = -9.46 delta HM = -6.58 NNO = -1.72 QFM = -0.98 IW = 2.48 Constraint Flags: Liquid mass = 67.31 (gm) density = 2.68 (gm/cc) viscosity = 2.24 (log 10 poise) (analysis in wt %) G = -1080481.67 (J) H = -816869.52 (J) S = 180.79 (J/K) V = 25.08 (cc) Cp = 99.28 (J/K) SiO2 TiO2 Al2O3 Fe2O3 Cr2O3 FeO MnO MgO NiO CoO CaO Na2O K2O P2O5 H2O 49.19 1.48 14.92 1.25 0.04 9.39 0.00 8.11 0.00 0.00 12.10 3.05 0.04 0.12 0.30 olivine mass = 7.01 (gm) density = 3.27 (gm/cc) (analysis in mole %) (Ca0.01Fe''0.17Mg0.83)2SiO4 G = -110763.65 (J) H = -86081.59 (J) S = 16.93 (J/K) V< /A> = 2.14 (cc) Cp = 8.71 (J/K) fayalite forsterite monticellite 16.66 81.87 1.47 pyroxene mass = 3.37 (gm) density = 3.21 (gm/cc) (analysis in mole %) cpx Na0.01Ca0.82Fe''0.14Mg0.90Fe'''0.04Ti0.01Al0.20Si1.88O6 G = -55066.68 (J) H = -43558.83 (J) S = 7.89 (J/K) V = 1.05 (cc) Cp = 4.02 (J/K) diopside clinoenstatit hedenbergite alumino-buffo buffonite esseneite jadeite 55.26 16.68 14.46 8.65 -6.04 9.75 1.24 feldspar mass = 22.66 (gm) density = 2.67 (gm/cc) (analysis in mole %) K0.00Na0.23Ca0.77Al1.77Si2.23O8 G = -393422.55 (J) H = -312917.95 (J) S = 55.21 (J/K) V = 8.50 (cc) Cp = 27.91 (J/K) albite anorthite sanidine 23.02 76.95 0.03 Total solids mass = 33.04 (gm) density = 2.83 (gm/cc) G = -559252.88 (J) H = -442558.38 (J) S = 80.03 (J/K) V = 11.69 (cc) Cp = 40.64 (J/K) Viscosity of the System: 3.12 (log 10 poise) System mass = 100.35 (gm) density = 2.73 (gm/cc) G = -1639734.54 (J) H = -1259427.90 (J) S = 260.81 (J/K) V = 36.77 (cc) Cp = 139.91 (J/K)

The

The file **melts-liquid.tbl** is always created when **MELTS version 1.1.3** or greater is run. The first record contains the following field labels, delimited by commas:

**T (C)**- Temperature of the system (Centigrade)**P (kbars)**- Pressure of the system (kilobars)**log(10) f O2**- Base 10 logarithm of the oxygen fugacity**liq mass (gm)**- Current mass of the liquid phase**liq rho (gm/cc)**- Current density of the liquid phase**liq vis (log 10 poise)**- Base 10 logarithm of the liquid viscosity**liq G (kJ), liq H (kJ), liq S (J/K), liq V (cc), liq Cp (J/K)**- Liquid thermodynamic properties (extensive basis)**wt% SiO2, wt% TiO2, wt% Al2O3, wt% Fe2O3, wt% Cr2O3****wt% FeO, wt% MnO, wt% MgO, wt% NiO, wt% CoO****wt% CaO, wt% Na2O, wt% K2O, wt% P2O5, wt% H2O**- Liquid composition in wt% oxides**sol mass (gm)**- Current total mass of the solid phases in the system**sol rho (gm/cc)**- Current proportionally averaged density of the solid phases in the system**sol G (kJ), sol H (kJ), sol S (J/K), sol V (cc), sol Cp (J/K)**- Proportionally averaged solid thermodynamic properties (extensive basis)

Subsequent records contain numerical values corresponding to these quantities. **melts-liquid.tbl** may be read by standard graphics software that can import data tables with comma delimited fields.

The remaining ***.tbl** files (output by **MELTS version 1.1.3** or greater) contain information specific to mineral phases crystallizing from the magma. File names correspond to the *mineral name* with the *.tbl* extension. The files are created *only if* the mineral appears in the system. Records are written *only if* the mineral is crystallizing. When more than one composition of the same phase is crystallizing simultaneously (i.e. two feldspars or three pyroxenes), multiple r ecords are written containing the coexisting phase information.

The first record contains the following field labels, delimited by commas:

**T (C)**- Temperature of the system (Centigrade)**P (kbars)**- Pressure of the system (kilobars)**log(10) f O2**- Base 10 logarithm of the oxygen fugacity**mass (gm)**- Current mass of the solid phase**rho (gm/cc)**- Current density of the solid phase**G (kJ), H (kJ), S (J/K), V (cc), Cp (J/K)**- Solid phase thermodynamic properties (extensive basis)**Component #1, Component #2, ...**- Current solid phase composition in terms of mole fractions of the indicated thermodynamic components

Subsequent records contain numerical values corresponding to these quantities. The ***.tbl** files may be read by standard graphics software that can import data tables with comma delimited fields.