Essays about: "baddeleyit"

Showing result 1 - 5 of 10 essays containing the word baddeleyit.

  1. 1. Petrography of impactites from the Dellen impact structure, Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Robert Mroczek; [2023]
    Keywords : Dellen; Impact; structure; magnetite; apatite; shock waves; shock-metamorphic; features; Impactite; petrography; scanning electron microscope; SEM; geology; Earth and Environmental Sciences;

    Abstract : Identification and characterization of shock-metamorphic features in hypervelocity impact craters is important for our understanding of how shock waves interact with geologic materials and how impact craters form, which in turn is essential to our understanding of what role impact cratering played in the development of our solar system. Of particular interest are accessory minerals like apatite, which contains various volatiles that can affect the atmosphere of a body, or magnetite whose magnetic properties constitute a remote sensing indicator which allows us to study and understand the internal structures of distant bodies. READ MORE

  3. 2. New geochronological constraints on the Klipriviersberg Group: defining a new Neoarchean large igneous province on the Kaapvaal Craton, South Africa

    University essay from Lunds universitet/Geologiska institutionen

    Author : Joaen Stamsnijder; [2017]
    Keywords : LA-ICP-MS; U–Pb geochronology; ID-TIMS; baddeleyite; Klipriviersberg Group; LIP; South Africa; Earth and Environmental Sciences;

    Abstract : In recent years, there has been a significant improvement in our ability to determine the ages of extensive short-lived magmatic events (large igneous provinces) dominated by rocks of mafic (silica-poor) compositions. This has been aided by targeting the magmatic feeders to these large igneous provinces (e.g. READ MORE

  4. 3. U-Pb geochronology of the Tsineng dyke swarm and paleomagnetism of the Hartley Basalt Formation, South Africa : evidence for two separate magmatic events at 1.93 – 1.92 and 1.88 – 1.84 Ga in the Kalahari craton

    University essay from Lunds universitet/Geologiska institutionen

    Author : Farnaz Alebouyeh Semami; [2014]
    Keywords : Kaapvaal; Tsineng; Hartley; baddeleyite; U-Pb geochronology; paleomagnetism; polar wander path; Kalahari; Earth and Environmental Sciences;

    Abstract : Robust geochronology and well-constrained paleopoles are the main tools for paleogeographic reconstructions. Through the completion of so called barcode diagrams (matching of coeval events of mafic magmatism between blocks) and determination of the apparent polar wander paths, these studies provide a better understanding of the position of continents and supercontinents in the past. READ MORE

  5. 4. 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

    University essay from Lunds universitet/Geologiska institutionen

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

    Abstract : 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. READ MORE

  6. 5. U-Pb baddeleyite ages from mafic dyke swarms in Dharwar craton, India : links to an ancient supercontinent

    University essay from Lunds universitet/Geologiska institutionen

    Author : Kürsad Demirer; [2012]
    Keywords : U-Pb TIMS baddeleyite; mafic dykes; Dharwar craton; palaeoreconstructions; Superia; U-Pb TIMS baddeleyit; mafiska gångar; Dharwar kraton; palaeorekonstruktion; Earth and Environmental Sciences;

    Abstract : .... READ MORE