Magmatic Sulfide Formation by Reduction of Oxidized Arc Basalt

‏‎suppression of coke formation in thermal cracking by coke inhibitors‎‏

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Toward a quantitativemodel for the formation of gravitational magmatic sulfide deposits

Magmatic Interaction as Recorded in Texture and Composition of Plagioclase Phenocrysts from the Sirjan Area, Urumieh-Dokhtar Magmatic Arc, Iran

Tertiary andesitic basalts of the Sirjan area, Urmieh-Dokhtar Magmatic Arc, Iran, contain plagioclase phenocrysts enclosed in a matrix of amphibole, clinopyroxene and rare olivine crystals. Textural and compositional evidence suggests two significantly different types of plagioclase phenocrysts occur in the andesitic basalts. The most common type of plagioclase phenocrysts have zoning patterns ...

Hydrogen Sulfide Formation by Shigella alkalescens.

The Shigella are generally regarded as organisms that fail to form hydrogen sulfide. In a recent report on a lead semisolid agar, Friewer and Shaughnessy (Am. J. Clin. Path., 8, 1) observed the formation of H2S by several strains of Shigella paradysenteriae (Flexner) and Shigelka sonnei in this medium and also by the lead acetate paper test, although no mention was made of this reaction by Shig...

Iron Sulfide Formation