Rhenium concentration in Australian molybdenites by stable isotope dilution

摘要: Abstract A method for the determination of rhenium in molybdenite is described concentrations down to 10 −7 g/g. Separation microgram quantities from effected by a pyridine solvent extraction and concentration determined stable isotope dilution. Rhenium determinations were made on specimens sampled at various localities throughout Australian continent. Their cannot be correlated geographical distribution, geological age, or geology deposit. Within restricted regions, however, pipe deposits are demonstrably lower than vein type occurrences. The hypothesized enhancement molybdenites associated with copper mineralization substantiated general although one remarkable exception this relation noted.