Sökning: "nepheline."

Hittade 3 uppsatser innehållade ordet nepheline..

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

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

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

    Sammanfattning : 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. LÄS MER

  3. 2. Mineraliska material som reaktiva filter för avskiljning av tungmetaller från dagvatten

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

    Författare :Anna Lindquist; [2005]
    Nyckelord :Reactive filters; adsorption; mechanisms for removal; urban storm water; heavy metals; column studies; batch experiments; blast-furnace slag; iron oxide; olivine; nepheline.;

    Sammanfattning : Highly polluted urban storm water from e.g. highways can contain large amounts of heavy metals that may cause harm if they are discharged into recipients. LÄS MER

  4. 3. Tungmetaller i lakvatten : avskiljning med mineraliska filtermaterial

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för geovetenskaper

    Författare :Veronica Hjelm; [2005]
    Nyckelord :reactive filters; leachate; sorption; heavy metals; blast-furnace slag; olivine; nepheline;

    Sammanfattning : Four different kinds of filter-materials with reactive surfaces have been studied concerning their capacity to absorb heavy metals in leachate from a municipal waste deposit. The heavy metals studied were: lead, cadmium, copper, mercury, chromium, nickel and zinc. LÄS MER