Essays about: "mgo"

Showing result 21 - 25 of 41 essays containing the word mgo.

  1. 21. Crystallization and Emplacement of the Monte Amarelo Dikes: Magma Storage Assessment on Fogo, Cape Verde Islands

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Olle Risby; [2017]
    Keywords : Fogo; magma storage model; thermobarometry; clinopyroxene; intrusion landslide.; Fogo; magmalagringsdjup; termobarometri; klinopyroxen; intrusion; skred;

    Abstract : The volcanic island of Fogo belongs to the Cape Verde archipelago, a two-tiered chain of islands situated 500 km west of the African coast. Fogo is regarded as one of the most active volcanoes in the world with 10 eruptions during the last 250 years. The former shield volcano Monte Amarelo reached 3500 m.a. READ MORE

  3. 22. Preparation, characterization and testing of model catalysts for CO oxidation and CO2 hydrogenation

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Author : Stefano Albertin; [2017]
    Keywords : Surface science; Rhodium; Nanoparticles; Catalysis; CO2; Physics and Astronomy;

    Abstract : A joint research between Lund University and Chalmers Competence Centre for Catalysis have shown promising results for a Rh-based catalyst for CO2 hydrogenation catalytic applications. The original catalyst consisted of a dispersion of nanoparticles onto a porous 3D oxide network. READ MORE

  4. 23. Heavy metal removal and water treatment using Upsalite

    University essay from Uppsala universitet/Nanoteknologi och funktionella material

    Author : Philip Erenbo; [2017]
    Keywords : Upsalite; lead; cadmium; nickel; MgO3; heavy metal; water treatment;

    Abstract : Ion exchange reactions between Upsalite, a mesoporous magnesium carbonate, and metal ions of cadmium, lead and nickel have been studied to evaluate the capacities of Upsalite as a water treatment agent. Uptake capacity and reaction kinetics have been evaluated using a batch experiment and atomic absorption spectroscopy. READ MORE

  5. 24. Temporal evolution of historic mafic lavas from Fogo, Cape Verde

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Erik Magnusson; [2016]
    Keywords : Cape Verde; Fogo; temporal evolution; igneous petrology; oxygen isotopes; Kap Verde; Fogo; tidsmässig utveckling; magmatisk petrologi; syreisotoper;

    Abstract : The volcanic Island of Fogo that is situated near the end of the southern island chain in the archipelago of Cape Verde is one of the most active oceanic volcanoes in the world. The purpose of this study was to investigate temporal variations in lavas from Fogo by using whole rock major and trace elements and describe trends in magmatic differentiation, melting systematics and mantle source compositions. READ MORE

  6. 25. U-Pb geochronology and geochemistry of host rocks to the Bastnäs-type REE mineralization in the Riddarhyttan area, west central Bergslagen, Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Wictor Linders; [2016]
    Keywords : Riddarhyttan; REE; Metavolcanic rocks; LA-ICP-MS; Zircon; Monazite.; Earth and Environmental Sciences;

    Abstract : The geochronology of felsic metavolcanic rocks hosting the Bastnäs-type rare earth element (REE) mineralization in the Riddarhyttan area in the Bergslagen region, Sweden, was investigated using Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) U-Th-Pb on zircon and monazite. U-Pb data from four host rock samples yield dates of 1899 ± 4 Ma (MSWD=2. READ MORE