Search for dissertations about: "upper mantle"

Showing result 11 - 15 of 19 swedish dissertations containing the words upper mantle.

  2. 11. Hydrogen diffusion and storage mechanisms in diopside

    Author : Rickard Sundvall; Henrik Skogby; Alasdair Skelton; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mineralogy; Mineralvetenskap; mineralogi; petrologi och geokemi; Mineralogy; Petrology and Geochemistry;

    Abstract : Hydrogen is a widespread trace element in many nominally anhydrous minerals (minerals without water or hydroxyl ions in their structural formula) from the Earth's crust and mantle. The hydrogen is normally incorporated in the form of hydroxyl ions and can be regarded as structurally bound water. READ MORE

  4. 12. Magmatism in the Cenozoic Ethiopian rift zone : the case against the Afar plume hypothesis

    Author : Begashaw Wolde; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Applied Geology; Tillämpad geologi;

    Abstract : Volcanism and rifting in the Afro-Arabian, i.e. Red Sea - Gulf of Aden - Ethiopian, region have often been attributed to a Tertiary plume centered on Afar, at the junction of the three rifts. READ MORE

  5. 13. Deep generated methane in the global methane budget

    Author : Elena Mukhina; Vladimir G. Kutcherov; Natalia Dubrovinskaya; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Energy Technology; Energiteknik;

    Abstract : Methane is a significant part of the global carbon cycle. The distribution of methane above and below the Earth’s surface suggests that atmospheric methane might be related to methane originating from the deep mantle. READ MORE

  6. 14. Influence of the deep petroleum transformation on the CO2 budget of the atmosphere

    Author : Aleksandr Serovaiskii; Vladimir G. Kutcherov; Kostya Trachenko; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Petroleum is an important component of the Earth’s crust and a necessary agent in human life. Due to fossil fuels usage in human activities, the carbon dioxide budget of the atmosphere is growing on the 4-5 GtC/year. READ MORE

  7. 15. How does O+ outflow vary with solar wind conditions?

    Author : Audrey Schillings; Hans Nilsson; Rikard Slapak; Lars-Göran Westerberg; Christopher Cully; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atmosfärsvetenskap; Atmospheric science;

    Abstract : The entire solar system including Earth is enveloped in a region of space where the Sun’s magnetic field dominates, this region is called the heliosphere. Due to this position in the heliosphere, a strong coupling exists between the Sun and our planet. READ MORE