Sökning: "source rocks"

Visar resultat 1 - 5 av 42 uppsatser innehållade orden source rocks.

  1. 1. APPLICATION OF IN SITU Rb-Sr DATING AND GEOCHEMICAL INVESTIGATIONS ON A NEW, 1.52-1.56 GA. OLD PEGMATITE FIELD IN THE ARCHIPELAGO OFF GOTHENBURG, IDEFJORDEN TERRANE, WESTERN SWEDEN

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Laszlo Zorc; [2023-08-18]
    Nyckelord :;

    Sammanfattning : In this study, Rb-Sr geochronology was used to determine the crystallization/cooling ages of muscovites and biotites from mapped primitive barren and rare element pegmatites in the Stora-Le-Marstrand Formation in the southwestern archipelago of Gothenburg. The results indicate that primitive barrens can be linked to the DG2 deformation event that occurred 1. LÄS MER

  3. 2. Evaluation of long-term effects of excavated sulfide-bearing rock : - A case study in western Sweden

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Ida Sundblom; [2022]
    Nyckelord :sulfide-bearing rock; acid rock drainage; sulfide oxidation;

    Sammanfattning : Sulfide-bearing rock that is excavated in conjunction with construction projects can cause environmental and construction engineering problems. Sulfidic minerals oxidize when they are exposed to an oxidant and water, which can make them generate acid rock drainage (ARD) with high concentrations of metals and sulphate. LÄS MER

  4. 3. Rocks in Vogue : on material flows within electronic devices

    Master-uppsats, Konstfack/Institutionen för design, inredningsarkitektur och visuell kommunikation (DIV); Konstfack/Industridesign

    Författare :Giorgia Burzio; [2021]
    Nyckelord :Design research; Material flows; Electronics; Energy; Battery; Care; Waste; Recycling; Craft; Critique; Landscape;

    Sammanfattning : Landscapes have been exploited and polluted by humans in order to obtain metals. Materials are treated as commodities: extracted, used inside our devices and appliances, then discarded as useless matter. The timespan of efficiency is shortened more and more due to obsolescence, material desire and constant innovation. LÄS MER

  5. 4. Investigation of Thermal Maturity of  Organic Matter at the Cambro Ordovician Transition in the Zagros Basin, Iran

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Niall Gibbons; [2021]
    Nyckelord :acritarchs; thermal maturity; Zagros Basin; hydrocarbons; source rocks; paleoenvironment;

    Sammanfattning : The thermal maturity of sediments from the upper Cambrian to lower Ordovician Mila and Ilbeyk  formations in the Zagros Basin in southwestern Iran is evaluated in this thesis. A number of low-cost,  fast, optical evaluation methods are utilised to assess their effectiveness for providing accurate, well  constrained thermal maturity results. LÄS MER

  7. 5. Magnetic Mineralogy of Nb-bearing Carbonatites from Oldoinyo Dili (Tanzania)

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Julia Frejd; [2021]
    Nyckelord :carbonatites; niobium; rare earth elements; Oldoinyo Dili; magnetic properties; karbonatiter; niob; rare earth elements; Oldoinyo Dili; magnetiska egenskaper;

    Sammanfattning : Niobium (Nb) and Rare Earth Elements (REE’s) have in recent years received considerable attention because of their importance to the modern technical industry, and more specifically the enhanced sustainability that comes with them. The main source for Nb and REE’s on Earth are carbonatites and associated alkaline silicate rocks. LÄS MER