Sökning: "Diabase"

Hittade 4 uppsatser innehållade ordet Diabase.

  1. 1. Wear resistance of heat-treated Advanced High Strength Steels and casting

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Joan Morata Royes; [2020]
    Nyckelord :;

    Sammanfattning : The necessity to improve the durability of the machinery used in the milling industry has lead to several types of research. One study is focused on the plates that are located in the stationary and moving jaws of crushers to diminish particles sizes of Gneiss and Diabase rocks. LÄS MER

  2. 2. 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. 3. Tektonostratigrafi och strukturgeologi i Ålkatj-Tielmamassivet, norra svenska Kaledoniderna

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Emma Rehnström; [1998]
    Nyckelord :geografi; geologi; Ålkatj-Tielmamassivet; tektonostratigrafi; strukturgeologi; svenska Kaledoniderna; Earth and Environmental Sciences;

    Sammanfattning : The bedrock of the Ålkatj-Tielma massif in the central part of the Sarek National Park in the northern Scandinavian Mountains, has never before been investigated. This massif was mapped during the summer of 1997 and the bedrock consists entirely of Caledonian nappes. LÄS MER

  4. 4. En petrografisk och mineralogisk studie av en komplex gång bestående av metadiabas och kvartskeratofyr i Kiirunavaaragruvan

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Eva Öhman; [1986]
    Nyckelord :geografi; geologi; petrografi; mineralogi; metadiabas; kvartskeratofyr; Kiirunavaaragruvan; Earth and Environmental Sciences;

    Sammanfattning : Summary: The purpose of this paper is to give a petrographic and mineralogic description of a dyke complex, consisting of a metadiabase and a quartz keratophyre. The type locality is the northern part of the Kiirunavaara apatite-rich iron ore, situated in northern Sweden. LÄS MER