Browsing ELibrary by Author "Sack R.O."

Now showing items 1-8 of 8

AN INTERNALLY CONSISTENT MODEL FOR THE THERMODYNAMIC PROPERTIES OF FE-MG-TITANOMAGNETITE-ALUMINATE SPINELS

Sack R.O.; Ghiorso M.S. (1991)

A model is developed for the thermodynamic properties of Fe2+–Mg2+-aluminate-titanate-ferrite spinels of space group Fd3m. The model incorporates an expression for the configurational entropy of mixing which accounts for ...
AS-SB ENERGETICS IN ARGENTIAN SULFOSALTS

Ghosal S.; Sack R.O. (1995)

Experimental brackets on As-Sb partitioning between polybasite-pearceite {Pbp; (Cu, Ag)16(Sb, As)2S11} and pyrargyrite-proustite {Ppr; (Cu, Ag)3(Sb, As)S3}, and between pyrargyrite-proustite, and miargyrite and smithite ...
INTERNALLY CONSISTENT DATABASE FOR SULFIDES AND SULFOSALTS IN THE SYSTEM AG2S-CU2S-ZNS-SB2S3-AS2S3

Sack R.O. (2000)

An updated thermodynamic database for Ag2S-Cu2S-ZnS-Sb2S3-As2S3 sulfides and sulfosalts applicable to temperatures above 119°C is developed to calculate phase relations for polybasite-pearceite- and fahlore-bearing ...
THERMOCHEMISTRY OF AG2S-CU2S SULFIDE SOLUTIONS: CONSTRAINTS DERIVED FROM COEXISTING SB2S3- AND AS2S3-BEARING SULFOSALTS

Harlov D.E.; Sack R.O. (1995)

We report experimental brackets (150-350°C, evacuated silica tubes) on (1) Ag-Cu partitioning between hexagonally close packed (hcp)-, face centered cubic (fcc)-, and body centered cubic (bcc)-(Ag, Cu)2S sulfides and the ...
THERMODYNAMICS OF (ZN,FE)S SPHALERITE. A CVM APPROACH WITH LARGE BASIS CLUSTERS

Balabin A.I.; Sack R.O. (2000)

We have developed a cluster variation method (CVM) model based on cuboctahedral and octahedral basis clusters containing 13 and 6 atoms, respectively, and applied it to the analysis of the thermodynamic mixing properties ...
THERMODYNAMICS OF FELDSPATHOID SOLUTIONS

Sack R.O.; Ghiorso M.S. (1998)

We have developed models for the thermody-namic properties of nephelines, kalsilites, and leucites in the simple system NaAlSiO4−KAlSiO4−Ca0.5AlSiO4−SiO2−H2O that are consistent with all known constraints on subsolidus ...
THERMODYNAMICS OF MULTICOMPONENT PYROXENES: II. PHASE RELATIONS IN THE QUADRILATERAL

Sack R.O.; Ghiorso M.S. (1994)

The model for the thermodynamic properties of multicomponent pyroxenes (Part I) is calibrated for ortho- and clinopyroxenes in the quadrilateral subsystem defined by the end-member components Mg2Si2O6, CaMgSi2O6, CaFeSi2O6, ...
UREILITE METEORITES: EQUILIBRATION TEMPERATURES AND SMELTING REACTIONS

Sinha S.K.; Sack R.O.; Lipschutz M.E. (1997)

We report microprobe analyses for eight ureilite samples (ALH A78019, ALH 82106, ALH 82130, ALH 84136, LEW 85328, LEW 85440, MET A78008, and RKP A80239) and calibrate smelting reactions characteristic of ureilites using ...

Browsing ELibrary by Author "Sack R.O."

Browsing ELibrary by Author "Sack R.O."

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