Sökning: "Kaapvaal Craton"

Visar resultat 6 - 9 av 9 uppsatser innehållade orden Kaapvaal Craton.

  1. 6. U-Pb baddeleyite geochronology and geochemistry of the White Mfolozi Dyke Swarm : unravelling the complexities of 2.70-2.66 Ga dyke swarms on the eastern Kaapvaal Craton, South Africa

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Johan Rådman; [2014]
    Nyckelord :Kaapvaal Craton; White Mfolozi Dyke Swarm; geochronology; U-Pb; baddeleyite; Diabase; Dolerite; geokronologi; baddeleyit; Earth and Environmental Sciences;

    Sammanfattning : Numerous mafic dykes of different generations and trends intrude the eastern part of the Kaapvaal Cra-ton. On eastern Kaapvaal, there are three previously investigated dyke swarms that appear to radiate out from the eastern lobe of the Bushveld Complex. The NE- and E trending branches comprise dykes dated at ca. LÄS MER

  3. 7. Visualizing the volcanic history of the Kaapvaal Craton using ArcGIS

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Max Adolfsson; [2014]
    Nyckelord :ArcGIS; time slice maps; geochronology; correlations; Kaapvaal Craton; Earth and Environmental Sciences;

    Sammanfattning : The Kaapvaal Craton comprises a piece of well preserved Archaean crust making it a valuable subject in the pursuit of palaeocontinental reconstruction. The aim of this study was to visualize the volcanic events of the craton through time using arcGIS and available geochronological data. LÄS MER

  4. 8. U-Pb geochronology and paleomagnetism of the Westerberg sill, Kaapvaal Craton : support for a coherent Kaapvaal-Pilbara block (Vaalbara)

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Tobias Christoph Kampmann; [2012]
    Nyckelord :Kaapvaal; Pilbara; Vaalbara; baddeleyite; U-Pb geochronology; paleomagnetism; continental reconstruction; Earth and Environmental Sciences;

    Sammanfattning : .... LÄS MER

  5. 9. When did the Kalahari craton form? : constraints from baddeleyite U-Pb geochronology and geo-chemistry of mafic intrusions in the Kaapvaal and Zimbabwe cratons

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Nadine März; [2010]
    Nyckelord :geography; geology; Kalahari craton; baddeylite U-Pb geochronology; mafic intrusions; Kaapvaal craton; Zimbabwe craton; Earth and Environmental Sciences;

    Sammanfattning : Nordost om Bushveldkomplexen i Kaapvaal kratonen finns en mäktig gångsvärm av nordost-orienterade diabasgångar tillhörande ”the Black Hills dyke swarm”. Med hjälp av U- Pb metoden av mineral baddeleyit daterades fem gångar inom ålderspannet 1.87 - 1.85 Ga, där två av dem ger exakta åldrar på 1852 ± 5 Ma och 1863 ± 7 Ma. LÄS MER