Quilf: A pascal program to assess equilibria among Fe-Mg-Mn-Ti oxides

@inproceedings{Anderson1993QuilfAP,
  title={Quilf: A pascal program to assess equilibria among Fe-Mg-Mn-Ti oxides},
  author={David Anderson and Donald H. Lindsley and Paula M. Davidson},
  year={1993}
}

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References

SHOWING 1-10 OF 23 REFERENCES

Fe-Ti oxide geothermometry: thermodynamic formulation and the estimation of intensive variables in silicic magmas

A new thermodynamic formulation of the Fe−Ti oxide geothermometer/oxygen barometer is developed. The method is based upon recently calibrated models for spinel solid solutions in the quinary system

Thermodynamic analysis of quadrilateral pyroxenes

A thermodynamic model for quadrilateral pyroxene solutions, is developed from the following assumptions: 1) Non-convergent cation-disorder of Fe and Mg occurs over the Ml and M2 sites; 2) Ca is

Ca-Fe-Mg olivines: phase relations and a solution model

AbstractReversed phase equilibrium experiments in the system (Ca, Mg, Fe)2SiO4 provide four tielines at P≪1 bar and 1 kbar and 800° C–1,100° C. These tielines have been used to model the solution

Internally consistent solution models for Fe-Mg-Mn-Ti oxides; Fe-Ti oxides

Developpement d'un modele pour la coexistence ilmenite ss -magnetite ss , fonde sur des donnees experimentales nouvelles et existant deja pour les oxydes Fe-Ti et utilisant une programmation lineaire

Thermodynamic properties of hematite — ilmenite — geikielite solid solutions

AbstractA solution model is developed for rhombohedral oxide solid solutions having compositions within the ternary system ilmenite [(Fe2+sTi4+1−s)A (Fe2+1−sTi4+s)B O3]-geikielite [(Mg2+tTi4+1−t)A

Importance of considerations of mixing properties in establishing an internally consistent thermodynamic database: thermochemistry of minerals in the system Mg2SiO4-Fe2SiO4-SiO2

A thermodynamic solution model is developed for minerals whose compositions lie in the two binary systems Mg2SiO4-Fe2SiO4 and Mg2Si2O6-Fe2Si2O6. The formulation makes explicit provision for

A two-pyroxene thermometer

Experimentally determined pyroxene phase relations at 800°–1200°C are combined with calculated phase equilibria for the Di-En and Hd-Fs joins to produce a graphical two-pyroxene thermometer that

Feldspar and oxide thermometry of granulites in the Adirondack Highlands

AbstractThermometry of regionally metamorphosed granulites of the Adirondack Highlands has been undertaken using feldspar and iron-titanium-oxide equilibria. Electron microprobe analyses of 20

Thermodynamic analysis of quadrilateral pyroxenes

The thermodynamics of quadrilateral pyroxene solutions have been analysed with the ternary non-convergent site-disorder model developed in Part I. Solution parameters have been refined for this model