Sökning: "Kap Verde"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Kap Verde.

  1. 1. Mineral Constraints on the Source Lithologies at Fogo, Cape Verde.

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Elin Rydeblad; [2018]
    Nyckelord :olivine; clinopyroxene; carbonatite; Cape Verde; Eclogite; source lithologies;

    Sammanfattning : Variations in major, minor, and trace elements compositions and ratios, as well as isotope ratios are all useful tools in studying the composition of the Earth’s mantle, and heterogeneities present therein. Since the mantle itself doesn’t easily lend itself to study, ocean island basalt (OIBs) are commonly used as a proxy due to compositional differences combined with the range of origination depth, a combination that allows them to represent the heterogeneity of the mantle, sampling everything from the core mantle boundary to the old or recent additions of recycled oceanic crust. LÄS MER

  3. 2. 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

  4. 3. Volatilernas påverkan på marina vulkanutbrott

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Laith Khadhem; [2017]
    Nyckelord :Cape Verde; high water depth; eruption; magma; volatiles; vesicles; clinopyroxene; magmatic water content; Kap Verde; högt vattendjup; vulkanutbrott; magma; volatiler; luftbubblor; klinopyroxen; vattenhalt;

    Sammanfattning : The Cape Verde archipelago is located 2000 km east of the Atlantic oceanic ridge and 500 km west of the western part of Africa. The plateau of the archipelago rises on average 2 km above the seafloor, which makes it one of the highest oceanic plateaus on Earth. LÄS MER

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

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

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

    Sammanfattning : 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. LÄS MER

  7. 5. How children in Cape Verde experience school meals:

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kost- och idrottsvetenskap

    Författare :Yasemin Nasirian; [2013-06-24]
    Nyckelord :children; experience; school meals; Cape Verde; social constructionism;

    Sammanfattning : Ett skolmatsprojekt startades 1979 i Kap Verde, med finansiering och stöd från Förenade Nationerna. I dag har Kap Verde fullt ansvar för hanteringen och implementeringen av skolmatsprojektet. Den här studien har tittat på barns upplevelser och betydelser knutna till skolmaten. LÄS MER