Materials on geochemistry and ore Fe-Ti-Cr mineralization of rocks composing layered (stratified) bodies the western slope Southern Urals are presented. A detailed analysis showed similarity in redistribution REE, noble metals, practically all parameters Misaelga Kusin-Kopan complexes. It has been established that metamorphism, which influenced components minerals complexes, correspond to – T =...

Compositional features of a total 1887 gold alluvial particles from six localities to the south Loch Tay in central Scotland were interpreted establish different types source mineralization. Populations each locality grouped according alloy and inclusion signatures. Inclusion suites provided primary discriminant with Group 1 showing narrow range simple sulphide sulphoarsenide species, whereas w...

On the basis of geochemical whole-rock and mineralogical point analyses, concentrations V Co were determined in magnetite-ilmenite oxide ores, associated with sulphides, at Krzemianka Udryn deposits Mesoproterozoic Suwałki Anorthosite Massif (SAM) NE Poland. EPMA analyses showed that main carrier vanadium was magnetite (mean = 0.42 wt%) and, to a lesser extent, ilmenite 0.14 minor Al-spinels 0....

The present work is aimed at studying the adsorption capacity of powdered Fuller’s earth for the removal of ferri/ferrous impurities found in commercial grade sodium sulphide. The latter is not suitable for the manufacture of pharmaceutical grade chemicals and dye chemicals. The author has carried out experiments taking different dosage of powdered Fuller’s earth as an adsorbent in the aqueous ...

Cotton hanks were dyed with three different sulphur dyes using non-sulphide reducing agents such as glucose, fructose, invert sugar and molasses. The alkalies employed for reduction were sodium carbonate and sodium hydroxide. Invert sugar as a reducing agent and sodium carbonate as alkali proved to be better as this combination gave results comparable to those obtained with the conventional sod...

This work deals with the evaluation of diphenyl sulphide as a corrosion inhibitor for zinc in 0.5N HCl and 0.5N H2SO4 by conventional weight loss and gasometric methods. Results indicate that diphenyl sulphide exhibited high inhibition efficiencies in both the acids but performed better in 0.5N H2SO4 than in 0.5N HCl. The inhibition efficiency was found to increase with increase in the inhibito...

An investigation of the different steps in the method of Weil-Malherbe & Bone (1949), as modified by Taylor (1953), has led to an altered procedure for citric acid determination, with increased sensitivity and accuracy. The main modifications involved are the use of (i) a higher concentration of sulphuric acid during the formation of pentabromoacetone, and (ii) a thiourea-borax-sodium sulphide ...

Kudz Ze Kayah (KZK) and Wolverine are volcanogenic massive sulphide deposits hosted by Early Mississippian meta-rhyolites, marine metasedimentary rocks and intermediate to mafc metatuffs of the Yukon Tanana Terrane in the Simpson Range, southern Yukon (Figure I). This project aims to pinpoint, within central northern B.C., stratigraphy favorable to the formation of Early Mississippian volcanoge...

In a comparative study of 4 bivalve species we show that the apparent widely different tolerances in survival time observed in a closed system filled with N2-gassed seawater is mainly due to the experimental conditions. Both a high dose of cadmium and the antibiotic chloramphenicol increase survival time 2to 4-fold. Without precautions for bacterial growth, the survival time of the most toleran...