The equilibrium iron isotope fractionation between lower mantle minerals and metallic iron at core-mantle boundary conditions can be evaluated from the high-pressure 57Fe partial vibrational density of states determined by synchrotron inelastic nuclear resonant x-ray scattering spectroscopy using a diamond anvil. Ferropericlase [(Mg,Fe)O] and (Fe,Mg)SiO3- post-perovskite are enriched in heavy i...

Mineral and heavy metal concentration of six aquatic plants possessing health promoting effects and used in indigenous medicine (as medicinal food) were determined using Atomic Absorption Spectroscopy. Different elemental constituents at trace levels of plant play an effective role in the medicines prepared. A total of 11 elements Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Pb and Zn have been measured....

Microcrystals of coesite and stishovite were discovered as inclusions in amorphous silica grains in shocked melt pockets of a lunar meteorite Asuka-881757 by micro-Raman spectrometry, scanning electron microscopy, electron back-scatter diffraction, and transmission electron microscopy. These high-pressure polymorphs of SiO(2) in amorphous silica indicate that the meteorite experienced an equili...

Sorption techniques are widely used to remove heavy metal ions from large volumes of aqueous solutions. Herein, the natural and some artificial materials, such as clay minerals, biosorbents, carbon-nanomaterials, metal oxides, are reviewed as adsorbents in the removal of different heavy metal ions, such as Ni(II), Cu(II), Pb(II), Cd(II), Cs(I), Eu(III), Th(IV), Cr(VI) from large volumes of aque...

Babolsar eastern coastal dunes have been developed along the southern coast of the Caspian Sea. The studied area is coordinated in N36°43' to N36°44' latitude and E52°44' to E52°52' longitude. The objectives of this research were to: Study mineralogy and geochemistry of sand dunes, to obtain chemical alteration index (CIA) and its relationship to climate and mineralogy, to de...

A comprehensive evaluation of the fatty acid and mineral composition Rhynchophorus ferrugineus (sago grub powder, SGP), pre-treated to meet New Zealand import biosecurity requirements, was investigated. Palmitic (42.5% FA), oleic (39.0% linoleic (1.02% FA) were most abundant saturated acid, monounsaturated polyunsaturated respectively. Lipid nutritional indices SGP fats ?6/?3 (2.17), hypocholes...

Oil is the “blood” and economic lifeblood of modern industry, but traditional light crude oil has been over-consumed, it difficult to meet human demand for energy, so exploitation heavy particularly important. In this paper, an oil-soluble catalyst was synthesized catalyze pyrolysis reaction in collaboration with reservoir minerals, as achieve efficient viscosity reduction reduce production cos...