Abstract The late-tectonic 511.4 ± 0.6 Ma-old Nomatsaus intrusion (Donkerhoek batholith, Damara orogen, Namibia) consists of moderately peraluminous, magnesian, calc-alkalic to calcic granites similar I-type worldwide. Major and trace-element variations LREE HREE concentrations in evolved rocks imply that the fractionated mineral assemblage includes biotite, Fe–Ti oxides, zircon, plagioclase mo...

Abstract Assigning correct protolith to high metamorphic-grade core zone rocks of large hot orogens is a particularly important challenge overcome when attempting constrain the early stages orogenic evolution and paleogeography lithotectonic units from these orogens. The Gurla Mandhata complex in NW Nepal exposes Himalayan metamorphic (HMC), sequence gneiss, migmatite, granite, hinterland oroge...

Materials designed for nuclear waste disposal include a range of ceramics, glass ceramics and glass waste forms. Those with crystalline phases have provided the momentum for studies of minerals as a means to understand aspects of waste-form crystal chemistry, behaviour in aqueous systems and radiation damage over geological periods of time. Although the utility of natural analogue studies varie...

On the basis of optimized grinding/heating cycles developed for several phosphate-based ceramics, the preparation of brabantite and then monazite/brabantite solid solutions loaded with tetravalent thorium, uranium, and cerium (as a plutonium surrogate) was examined versus the heating temperature. The chemical reactions and transformations occurring when heating the initial mixtures of AnO2/CeO2...

This article aimed to separate ilmenite (FeTiO3) mineral from tin tailing applying a single splitter IRMS (Induced Roll Magnetic Separator). Ilmenite is the substantial main source for TiO2. work used air table middling feeding. The components of feeding using grain counting analysis were found as follows: cassiterite (48.61%), (21.36%), monazite (18.56%), pyrite (4.60%), zircon (5.85%), quartz...