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Previous attempts to modify the dyeability of cellulosic fibres for anionic dyes by pretreatment with reactive quaternary agents are discussed critically. Agents of the epoxypropyl type are compared… (More)
Olivine offers huge, largely untapped, potential for improving our understanding of magmatic and metasomatic processes. In particular, a wealth of information is contained in rare earth element (REE)… (More)
Abstract The systematics of the rare earth element (REE) abundances in olivine are poorly understood and this undermines their usefulness in deciphering petrogenetic processes. Here we report a novel… (More)
The decolorization of azo dyes by sodium hypochlorite solution has been followed spectrophotometrically and a technique developed for determining the half-life of the process as a convenient measure… (More)
Olivine is a widely occurring mineral that offers great potential for improving our understanding of geological processes. Olivine is present across a range of geologically significant settings,… (More)
It is well established that the cratonic subcontinental lithospheric mantle (C-SCLM) represents a residue of extensively melted peridotite. The widespread occurrence of garnet in C-SCLM remains a… (More)