Sökning: "eklogit"

Hittade 5 uppsatser innehållade ordet eklogit.

  1. 1. Metamorphic Evolution of the Tjeliken Garnet-Phengite Gneiss, Northern Jämtland, Swedish Caledonides

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Barbro Andersson; [2016]
    Nyckelord :Seve Nappe Complex; Scandinavian Caledonides; high-pressure metamorphism; U Pb zircon geochronology; garnet-phengite gneiss; Seveskollan; skandinaviska Kaledoniderna; högtrycksmetamorfos; uran-bly datering; högtrycksgnejs;

    Sammanfattning : The Tjeliken Mountain in northern Jämtland, central Scandinavian Caledonides is by most authors considered to belong to the Lower Seve Nappe Complex (SNC). However, recently P-T conditions similar to the Middle Seve have been constrained for the eclogite at the top of the mountain, revitalizing the tectonic debate about Tjeliken. LÄS MER

  3. 2. Metamorphic rocks in a section across a Sveconorwegian eclogite-bearing deformation zone in Halland : characteristics and regional context

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Brendan Dyck; [2010]
    Nyckelord :Ullared Deformation Zone; retrogression; high-grade metamorphism; Sveconorwegian; Eclogite; Earth and Environmental Sciences;

    Sammanfattning : Eclogitized mafic bodies in the Ullared Deformation Zone (UDZ) of SW Sweden are evidence for high-pressure metamorphism and deformation related to continent collision during the Sceconorwegian orogeny. A petrographic study was performed on ten samples taken from a profile transecting the UDZ, with the aim of further characterizing the rocks within the eclogite bearing deformation zone. LÄS MER

  4. 3. A geochemical characterization of the lower part of the Miocene shield-building lavas on Gran Canaria

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Romina Peetz; [2009]
    Nyckelord :Gran Canaria; shield-building lavas; Güigüi Formation; Earth and Environmental Sciences;

    Sammanfattning : Ocean islands offer a great potential to provide information about mantle processes and the composition of the mantle. Gran Canaria is located in the centre of the Canary Island Archipelago and is well suited for such studies. A comprehensive study of the lower Miocene shield-building lavas is performed for this thesis. LÄS MER

  5. 4. En studie av Källsjögranitens deformationsmönster och kinematiska indikatorer inom Ullaredszonen

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Magnus Ekdahl; [2001]
    Nyckelord :granite; deformation; tectonic lenses; anastomosing; extension; kinematic indicators; Eastern Segment; Ullared; Sveconorwegian orogen; granit; tektoniska linser; anastomosering; kinematiska indikatorer; Östra Segmentet; Svekonorvegisk orogen; Earth and Environmental Sciences;

    Sammanfattning : Populärvetenskaplig sammanfattning: Källsjögraniten - rörelser i berggrunden. Berggrunden inom sydvästra Sverige indelas i olika enheter som kallas segment. Indelningen grundar sig på olika typer av bergarter, skilda tidsåldrar samt att dessa i varierad utsträckning påverkats av deformation vid rörelser i berggrunden under olika skeenden. LÄS MER

  7. 5. Övergången mellan koronadiabas och eklogit i Seveskollan på Grapesvare, Norrbotten, svenska Kaledoniderna

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Lena Hagin; [1992]
    Nyckelord :geografi; geologi; koronadiabas; eklogit; Seveskollan; Grapesvare; Norrbotten; svenska Kaledoniderna; Earth and Environmental Sciences;

    Sammanfattning : In the Seve Nappe Complex on Mt. Grapesvare, Swedish Caledonides, coronitic dolerites and eclogites occur in psammitic and pelitic schists. The transition between them is a 200 m wide zone with small boudins of garnet amphibolite. That zone trends N95°E and does not coincide with any tectonic discontinuity. LÄS MER