Sökning: "hydrothermal fluids"

Visar resultat 1 - 5 av 24 uppsatser innehållade orden hydrothermal fluids.

  1. 1. Petrological, geochemical and structural evidence of fluid-rock interaction in the Siljan Ring

    Kandidat-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :William Crang; [2024]
    Nyckelord :methane; hydrothermal fluids; fluid-rock interaction; impact craters; reduction haloes; pyrite preservation; Siljan Ring;

    Sammanfattning : The Siljan Ring in Dalarna, Sweden is the site of the largest meteor impact crater in Europe and has long been a topic of discussion regarding methane production. However, the source of this methane and the timing of production in relation to the impact remain unclear. LÄS MER

  3. 2. Characterization of Cu-mineralized carbonate veins in the Alta-Kvænangen Tectonic Window, Norway

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

    Författare :Ellen Svens; [2024]
    Nyckelord :Greenstone belt; IOCG; Svecokarelian orogeny; Alta-Kvænangen Tectonic Window; Bergmark anticline;

    Sammanfattning : The Alta-Kvænangen Tectonic Window is part of a regional greenstone belt that formed around 2.3 Ga – 2.0 Ga. The Bergmark anticline in the area has gone through greenschist to amphibolite facies metamorphism and hosts Cu, Co and Au mineralizations in hydrothermal veins, albite felsite and chemical traps. LÄS MER

  4. 3. The prospects of using acoustic particle separation techniques to separate heavy metals from lake- and seabed sediments

    Master-uppsats, KTH/Marcus Wallenberg Laboratoriet MWL

    Författare :Ohan Lundblad; [2021]
    Nyckelord :acoustic particle separation; ultrasound; acoustics; particle separation; akustisk partikelseparation; ultraljud; akustik; partikelseparation; akustisk partikelseparationsteknik; akustisk separationsteknik;

    Sammanfattning : This work aims to investigate if it is realistic to use acoustic particle separation techniques for separating heavy-metals from pump-dredged seabed sediments on a large scale. A premise for the project has been that the material should undergo hydrothermal carbonization (HTC) before acoustic treatment. LÄS MER

  5. 4. Structural controls and associated alterations in the West Maurliden volcanic-hosted massive sulfide deposit, Skellefte district, northern Sweden

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Nikolay Zhivkov; [2021]
    Nyckelord :West Maurliden; volcanic-hosted massive sulfide deposit; Skellefte district; Structure;

    Sammanfattning : Volcanic-hosted massive sulfide (VMS) deposits are one of the main sources for zinc, copper, lead, silver and gold in Sweden. The majority of VMS deposits in Sweden are located in the Bergslagen region and the Skellefte district (Fig. 1). LÄS MER

  7. 5. GEOCHEMICAL UNDERSTANDING OF VANADIUM IN MALMBERGET ORES (KIRUNA TYPE), NORTHERN SWEDEN

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Kabelo Kambai; [2021]
    Nyckelord :Vanadium; Malmberget; Kiruna Type;

    Sammanfattning : The Norrbotten region is an important Swedish mining district with occurrence of several economic deposits and sub-economic deposits of apatite iron ores (Kiruna Type) and epigenetic Cu-Au ores. The apatite iron ores include the large Malmberget deposit mined by LKAB company as one of their world class underground mines. LÄS MER