Browsing ELibrary by Author "Dalton J.A."

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CARBONATITIC MELTS ALONG THE SOLIDUS OF MODEL LHERZOLITE IN THE SYSTEM CAO-MGO-AL2O3-SIO2-CO2 FROM 3 TO 7 GPA

Dalton J.A.; Presnall D.C. (1998)

We have experimentally determined the soli-dus position of model lherzolite in the system CaO-MgO-Al 2 O 3 -SiO 2 -CO 2 (CMAS.CO 2) from 3 to 7 GPa by locating isobaric invariant points where liquid coex-ists with olivine, ...
NO LIQUID IMMISCIBILITY IN THE SYSTEM MGSIO3-SIO2 AT 5.0 GPA

Dalton J.A.; Presnall D.C. (1997)

Liquidus phase relationships in the system MgSiO3-SiO2 at 5.0 GPa have been determined using a multianvil apparatus. Compared to phase relationships at 1 atm, the MgSiO3-SiO2 phase diagram at 5.0 GPa is significantly ...
THE COMPOSITIONS OF PRIMARY CARBONATE MELTS AND THEIR EVOLUTION THROUGH WALLROCK REACTION IN THE MANTLE

Dalton J.A.; Wood B.J. (1993)

We have experimentally determined the compositions of near-solidus melts from depleted natural lherzolite at pressures greater than 25 kbar. The melts are carbonatitic with low alkali contents and Ca/(Ca + Mg) ratios of ...
THE PARTITIONING OF FE AND MG BETWEEN OLIVINE AND CARBONATE AND THE STABILITY OF CARBONATE UNDER MANTLE CONDITIONS

Dalton J.A.; Wood B.J. (1993)

We have investigated the effect of Fe on the stabilities of carbonate (carb) in lherzolite assemblages by determining the partitioning of Fe and Mg between silicate (olivine; ol) and carbonates (magnesite, dolomite, magnesian ...

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