late miocene–pliocene calc-alkaline volcanic rocks are exposed southeast of isfahan in the urumieh-dokhtar magmatic belt. volcanic rocks consist of lava flows and domes, chiefly basaltic andesites, andesites and dacites. minerals in the volcanic rocks exhibit degrees of disequilibrium features. plagioclase as dominant mineral in these rocks generally displays reverse and oscillatory zoning; sie...

Volcanic gas emission is considered to reflect the degassing of magma beneath volcanoes. The combined observations measurement and petrological study are expected constrain volatile concentrations storage depths pre-eruptive primitive magma. Aso volcano (Japan) a constantly-monitored, persistently-degassing volcano, an ideal site acquire petrologic data. We analyzed melt inclusions phenocryst m...

Zircon grains were separated from lunar regolith and rocks returned from four Apollo landing sites, and analyzed in situ by secondary ion mass spectrometry. Many regolith zircons preserve magmatic dO and trace element compositions and, although out of petrologic context, represent a relatively unexplored resource for study of the Moon and possibly other bodies in the solar system. The combinati...

Introduction: The most important parameter for understanding the dynamic state of the interiors of rocky planets is the average temperature of the planet (typically referred to as the potential temperature, TP, which is the fictive temperature the planet would have if it’s interior were decompressed along a solid adiabat to the surface of the planet). Because there are no direct ways for estima...

From (3. F. Becker's and L. V. Pirsson's early enunciations linking the dynamics of magma chambers to the rock records of sills and plutons to this day, two features stand at the centre of nearly every magmatic process: solidification fronts and phenocrysts. The structure and behaviour of the envisioned solidification front, however, has been mostly that akin to non-silicate, non-multiply-satur...