Search Results - "Sack, Richard O."

Sulfur vacancies in fahlores from the Ag-Pb–Zn Mangazeyskoye ore deposit (Sakha, Russia) by Sack, Richard O., Lyubimtseva, Natalia G., Bortnikov, Nikolay S., Anikina, Elena Yu, Borisovsky, Sergey E.

“…Fahlores from the epithermal Mangazeyskoye Ag-Pb–Zn ore deposit (Sakha, Russia) typically occur in rhythmically zoned crystals. In contrast to typical (Ag,Cu)…”
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Djerfisherite: nebular source of refractory potassium by Ebel, Denton S., Sack, Richard O.

“…Djerfisherite is an important carrier of potassium in highly reduced enstatite chondrites, where it occurs in sub-round metal-sulfide nodules. These nodules…”
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Ti-content of high-Ca pyroxenes as a petrogenetic indicator: an experimental study of Mafic Alkaline Rocks from the Mt. Erebus volcanic region, Antarctica by Gerke, Tammie L., Kilinc, Attila I., Sack, Richard O.

“…We report chemical and mineralogical data for one atmosphere melting experiments conducted on alkalic rocks from the Mt. Erebus volcanic region: DVDP2…”
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An internally consistent model for the thermodynamic properties of Fe-Mg-titanomagnetite-aluminate spinels by SACK, Richard O, GHIORSO, Mark S

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Thermodynamics of multicomponent pyroxenes: II. Phase relations in the quadrilateral by Sack, Richard O., Ghiorso, Mark S.

“…A model for the thermodynamic properties of multicomponent pyroxenes is calibrated for ortho- and clinopyroxenes. Results and their implications are discussed…”
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Thermodynamics of multicomponent pyroxenes: I. Formulation of a general model by Sack, Richard O., Ghiorso, Mark S.

“…A model is proposed for the thermodynamic properties of multicomponent pyroxenes in the composition space defined by the end-member component CaMgSi2O6…”
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Constraining compositions of hydrothemal fluids in equilibrium with polymetallic ore-forming sulfide assemblages by Sack, Richard O, Lichtner, Peter C

“…To provide an improved understanding of the genesis of high-temperature Ag-Pb-Zn ore deposits we have obtained revised estimates for the thermodynamic…”
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Fe-Ti oxide geothermometry:. thermodynamic formulation and the estimation of intensive variables in silicic magmas by GHIORSO, Mark S, SACK, Richard O

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Importance of considerations of mixing properties in establishing an internally consistent thermodynamic database: thermochemistry of minerals in the system Mg2SiO4-Fe2SiO4-SiO2 by Sack, Richard O., Ghiorso, Mark S.

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Evidence for a reduced, Fe-depleted martian mantle source region of shergottites by Ghosal, Subhabrata, Sack, Richard O., Ghiorso, Mark S., Lipschutz, Michael E.

“…Estimates of the oxygen fugacity of the source regions of martian shergottites are obtained from coexisting Fe-Ti oxides and from Fe3 +/Fe2+ ratios in…”
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Chemical mass transfer in magmatic processes IV. A revised and internally consistent thermodynamic model for the interpolation and extrapolation of liquid-solid equilibria in magmatic systems at elevated temperatures and pressures by Ghiorso, Mark S., Sack, Richard O.

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Ureilite meteorites: Equilibration temperatures and smelting reactions by Sinha, Suvinay K., Sack, Richard O., Lipschutz, Michael E.

“…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…”
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Thermodynamics of feldspathoid solutions by Sack, Richard O., Ghiorso, Mark S.

“…We have developed models for the thermodynamic properties of nephelines, kalsilites, and leucites in the simple system NaAISiO4 - KAIS104 - Cao.5AlSiO4 -SiO2 -…”
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Experimental petrology of alkalic lavas: constraints on cotectics of multiple saturation in natural basic liquids by SACK, R. O, WALKER, D, CARMICHAEL, I. S. E

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Internally consistent database for sulfides and sulfosalts in the system Ag2S-Cu2S-ZnS-FeS-Sb2S3-As2S3: Update by Sack, R O

“…The thermodynamic database for Ag2S-Cu2S-ZnS-FeS-Sb2S3-As2S3 sulfides and sulfosalts applicable to temperatures above 119C has been updated based on the…”
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Formation conditions of igneous regions in ordinary chondrites: Chico, Rose City, and other heavily shocked H and L chondrites by Yolcubal, Irfan, Sack, Richard O., Wang, Ming‐Sheng, Lipschutz, Michael E.

“…We report microprobe and radiochemical neutron activation analysis (RNAA) data for hosts and igneous inclusions in the heavily shocked ordinary chondrites Rose…”
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Spinels as petrogenetic indicators: Activity-composition relations at low pressures by Sack, Richard O.

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Thermodynamics of multicomponent pyroxenes: III. Calibration of Fe2+(Mg)-1, TiAl2(MgSi2)-1, TiFe 2 3+ (MgSi2)-1, AlFe3+(MgSi)-1, NaAl(CaMg)-1, Al2(MgSi)-1 and Ca(Mg)-1 exchange reactions between pyroxenes and silicate melts by Sack, Richard O., Ghiorso, Mark S.

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The Gibbs Free Energy of mixing of natural silicate liquids; an expanded regular solution approximation for the calculation of magmatic intensive variables by GHIORSO, M. S, CARMICHAEL, I. S. E, RIVERS, M. L, SACK, R. O

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Constraining Compositions of Hydrothermal Fluids in Equilibrium with Polymetallic Ore-Forming Sulfide Assemblages by Sack, R. O., Lichtner, P. C.

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