Sökning: "biotite"

Visar resultat 21 - 25 av 46 uppsatser innehållade ordet biotite.

  1. 21. Petrographic study of high-grade gneisses, Halland area

    L3-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :Diana Carlsson; [2014]
    Nyckelord :;

    Sammanfattning : This is a petrographic study of high-grade gneisses in the Halland area, Sweden. During bedrock mapping by the Swedish Geological Survey, three principal petrographically distinct gneiss domains have been recognized: the Skene, Varberg, and Halmstad domain. LÄS MER

  3. 22. REE mineralisation and metasomatic alteration in the Olserum metasediments

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Wayne Fullerton; [2014]
    Nyckelord :metasediment; metasomatism; mineralisation; monazite; Olserum; REE; xenotime; Earth and Environmental Sciences;

    Sammanfattning : The Olserum mineralisation is situated in the metasediments of the Västervik formation, which repre-sents the southernmost continental margin of the Svecokarelian Domain. After deposition between 1.88 – 1.85 Ga these sediments were subsided to a depth of about 10 km and intruded by a series of granitoid melts. LÄS MER

  4. 23. The Säm fold structure : characterization of folding and metamorphism in a part of the eclogite–granulite region, Sveconorwegian orogen

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Stephen Michalchuk; [2013]
    Nyckelord :anatexis; high-T granulite; interference folds; polydeformation; Sveconorwegian orogen; SW Sweden; Earth and Environmental Sciences;

    Sammanfattning : Structural and petrological studies on complexly folded mafic and felsic layered sequences have been mapped in the parautochthonous basement of the Sveconorwegian Province, Sweden. Three deformation phases (D1, D2, D3)involving at least two fold phases (F2, F3) and two lineation phases (L2, L3) characterize a polyphase fold, which is primarily defined by a migmatized and highly competent garnet amphibolite. LÄS MER

  5. 24. P-T evolution of paragneisses and amphibolites from Romeleåsen, Scania, southernmost Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Jan Ulmius; [2013]
    Nyckelord :Romeleåsen; metamorphism; geothermobarometry; pseudosection; Theriak-Domino; P-T path; Hallandian Danopolonian; Sveconorwegian Romeleåsen; metamorfism; geotermobarometri; pseudosektion; P-T-utveckling; halandisk danopolonisk; svekonorvegisk; Earth and Environmental Sciences;

    Sammanfattning : Populärvetenskaplig sammanfattning Vad har berget i Romeleåsen varit med om? Jordskorpan är uppbyggd av ett antal plattor. Vid plattgränser under oceanerna bildas ny skorpa av magma som tränger upp. Oceanplattan kan inte öka i storlek. LÄS MER

  7. 25. The alteration mineralogy of Svartliden, Sweden

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Lawrence Nilsson; [2013]
    Nyckelord :Svartliden; alteration mineralogy; Fäboliden; amphibolite and granulite facies; Dragon Mining Sweden; Earth and Environmental Sciences;

    Sammanfattning : The alteration mineralogy of Svartliden, Sweden Svartliden mine is an open pit in northern Sweden close to the Skellefte field in the “Gold Line”, which is a zone associated with gold mineralization. Svartliden gold mine was discovered by amateur geologists who were prospecting after boulders that contained low sulphide contented. LÄS MER