Inclusions in mantle minerals and xenoliths from kimberlites worldwide derived depths exceeding 100 km vary composition alkali-rich saline to carbonatitic. Despite the wide distribution of these melts their geochemical importance as metasomatic agents that altered mineralogy geochemistry rocks, P-T range stability remains largely undefined. Here we report new experimental data on phase relation...

We quantified mineral proportions in listvenite (completely carbonated peridotite) Hole BT1B drilled across the basal thrust of Samail ophiolite by International Continental Scientific Drilling Project Oman using 3D X-ray Computed Tomography (XCT). analyzed >250,000 XCT images from a continuous ?200 m core. Histograms intensity attenuation each core-slice image were fitted assuming that listven...

In order to reduce the iron impurities in magnesite ore and improve purity of magnesium products, difference floatability between limonite has been studied by using mixtures with a collecting agent—KD (cationic amine collectors, containing soluble components). Sodium hexametaphosphate, pH, sodium silicate, carboxymethyl cellulose were used as regulators. Adsorption mechanisms reagents on minera...