Phase relations of a Carbonated High-CaO Nephelinite at 0·2 and 0·5 GPa
نویسندگان
چکیده
منابع مشابه
Liquidus Phase Relations in the System CaO–MgO–Al2O3–SiO2 at 2·0 GPa: Applications to Basalt Fractionation, Eclogites, and Igneous Sapphirine
with suggestions that fractionation of tholeiitic basalt in this pressure To model magmatic crystallization processes for mafic to intermediate range yields an alkalic basalt. Both trends may occur for natural compositions at high pressure, liquidus phase relations in the basalts depending on the Na2O content of the parental magma. forsterite–anorthite–diopside–silica (FADS) tetrahedron within ...
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Carbon dioxide, generally considered as the second most abundant volatile component in silicate magmas, is expected to significantly influence various melt properties. In particular, our knowledge about its dynamical effects is lacking over most of Earth's mantle pressure regime. Here, we report the first-principles molecular dynamics results on the transport properties of carbonated MgSiO3 liq...
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The phase relations of petedunnite [CaZnSi2O6 (pd)] were determined experimentally at P-T conditions up to 2.5 GPa and 1100 °C. Single-phase petedunnite is formed at high pressures (P > 0.8 GPa). Reversed experiments show that at lower pressures and temperatures >650 °C petedunnite decomposes to willemite [Zn2SiO4 (wil)], hardystonite [Ca2ZnSi2O7 (har)], and quartz [SiO2 (qtz)] according to the...
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ژورنال
عنوان ژورنال: Journal of Petrology
سال: 1998
ISSN: 1460-2415
DOI: 10.1093/petrology/39.11.2061