The system diopside-akermanite-gehlenite at 1 atm.
نویسندگان
چکیده
منابع مشابه
Reevaluation of the Åkermanite-gehlenite Binary System
Introduction: Melilite, a solid solution of åker-manite (Ca 2 MgSi 2 O 7) and gehlenite (Ca 2 Al 2 SiO 7), is one of the major constituents of the Ca-Al-rich inclusions (CAIs), representing the oldest material of the solar system. Therefore, knowledge of the phase and compositional relationships in the åkermanite-gehlenite binary system is very important for understanding the formation and evol...
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Data determined using a multianvil press are given for liquidus phase relations in the system diopside – forsterite – enstatite (CaMgSi2O6 – Mg2SiO4 – MgSiO3) and extend for a limited distance into the larger ternary system diopside – forsterite – quartz at 5.1 GPa. In the system diopside–enstatite, which cuts across the system diopside – forsterite – quartz and divides it into two smaller tern...
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A series of sintered glass-ceramics belonging to the system diopside–albite, forming by surface crystallization 30, 50 and 65% diopside, was investigated. In order to study the effect of bulk crystallization on the sintering a 0.7% of Cr2O3 as nucleation agent was added in one of the compositions. The crystallization was evaluated by DTA and density measurements and the degree of densification ...
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The purpose of this reaserch is to measure the phase equilibrium data of the ternary system (water + phosphoric acid + 1-nonanol) at different temperatures. Experimental solubility curves and tie-line points for the system were obtained at T = 298.2, 308.2 and 318.2 K and ambient pressure. The binodal curve data were detected by the cloud point method. The mass fractions of each layer ...
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New Hugoniot data on single crystal diopside, CaMgSi206 (Di), suggest that transformation to a high-pressure thermomechanical state begins at ---50 GPa and is complete above 100 GPa, in agreement with other pyroxenes and silicates of geophysical interest. Comparison of the new high pressure phase (HPP) data for Di and salite, CaMg0.82Fe0.•8Si206 (Sa) with appropriate mixed oxide and perovskite ...
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ژورنال
عنوان ژورنال: JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY
سال: 1991
ISSN: 0914-9783,1881-3275
DOI: 10.2465/ganko.86.554