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Carbon is not required during crystallization to produce ferrobasalts/ferrodiorites (FTP rocks)
- Geology
- 2007
Abstract Experiments were conducted to determine whether the presence of graphite is required to produce the Fe-Ti-P-enrichment, silica-depletion trend seen in ferrobasalts and…
The activity of chromite in multicomponent spinels: Implications for T‐fO2 conditions of equilibrated H chondrites
- Geology
- 2004
Abstract— Activities of chromite in multicomponent spinels with compositions similar to those of H chondrites were experimentally determined by equilibrating Pt‐alloys with spinel at known…
Multicomponent cubic oxide exsolution in synthetic basalts: Temperature dependence and implications for magnetic properties
- Materials Science
- 2012
[1] Although the compositional unmixing of cubic-structured iron oxides has profound effects on the magnetic properties of rocks that contain them, a basic understanding of the kinetics and…
XRF major and trace element determination in Fe-Ti oxide minerals
- Geology
- 2009
An XRF method describes the bulk composition (host + exsolved phases) analysis of magnetite and ilmenite grains obtained by physical methods of separation. Fe, Ti, Mn, Mg, Al, Ca, and Si are measured…
The Titanomagnetite–Ilmenite Equilibrium: New Experimental Data and Thermo-oxybarometric Application to the Crystallization of Basic to Intermediate Rocks
- Geology
- 2008
Although the titanomagnetite^ilmenite thermo-oxybarometer has been widely used to provide information on temperature and oxygen fugacity during magmatic and metamorphic processes, the available…
Fe-Ti oxide-silicate (QUIlF-type) equilibria in feldspathoid-bearing systems
- Geology
- 2011
Abstract Silicate-oxide equilibria (abbreviated as QUIlF) have proven to be very powerful tools for reconstructing the temperature and oxygen fugacity evolution of magmatic systems containing…
Assemblages with titanite (CaTiOSiO4), Ca-Mg-Fe olivine and pyroxenes, Fe-Mg-Ti oxides, and quartz: Part II. Application
- Geology
- 2001
Abstract In the system CaO-MgO-FeO-Fe2O3-TiO2--SiO2, equilibria among titanite, pyroxene(s), olivine, spinel phase, ilmenite, and quartz constrain fO₂, T, aSiO₂, aTiO₂, aFe, and the compositional…
Parameterization of the Fe = Mg exchange coefficient (Kd) between clinopyroxene and silicate melts
- Geology
- 2010
Origin of Fe–Ti Oxide Ores in Mafic Intrusions: Evidence from the Panzhihua Intrusion, SW China
- Geology
- 2007
Economicconcentrationsof Fe^Ti oxidesoccuras massive, conform-able lenses or layers in the lower part of the Panzhihua intrusion,Emeishan Large Igneous Province, SW China. Mineral chemistry,textures…
Geo‐fO2: Integrated Software for Analysis of Magmatic Oxygen Fugacity
- GeologyGeochemistry, Geophysics, Geosystems
- 2019
Oxygen fugacity (fO2) is a fundamental thermodynamic property governing redox potential in solid Earth systems. Analysis of magmatic fO2 aids our understanding of the valence state and solubility of…
References
SHOWING 1-10 OF 23 REFERENCES
Fe-Ti oxide geothermometry: thermodynamic formulation and the estimation of intensive variables in silicic magmas
- Geology
- 1991
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
- Geology
- 1985
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
- Geology
- 1984
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
- Chemistry
- 1988
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
- Chemistry
- 1990
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
- Geology
- 1989
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
- Geology
- 1983
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
- Geology
- 1977
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
- Geology
- 1985
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…