Search for dissertations about: "gneiss"

Showing result 1 - 5 of 20 swedish dissertations containing the word gneiss.

  1. 1. Deep subduction of the Seve Nappe Complex in the Scandinavian Caledonides

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Iwona Klonowska; Uppsala universitet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; geothermobarometry; thermodynamic modelling; Raman spectroscopy; diamond; ultrahigh-pressure metamorphism; eclogite; peridotite; gneiss;

    Abstract : This thesis seeks to improve our understanding of the processes involved in continental collision zones, with a particular focus on subduction-exhumation. The main objective of this work has been to define the tectonometamorphic evolution of the deeply subducted Seve Nappe Complex (SNC) in the Scandinavian Caledonides. READ MORE

  2. 2. Geologic examples of small-scale differentiation phenomena : flecky gneiss, orbiculites and experimental models

    University dissertation from Stockholm

    Author : Richard V. Russell; Stockholms universitet.; [1972]
    Keywords : ;

    Abstract : .... READ MORE

  3. 3. The formation of a flecky gneiss and similar phenomena in relation to the migmatite and vein gneiss problem

    University dissertation from Stockholm : Geologiska Föreningen i Stockholm

    Author : Bengt Loberg; Stockholms universitet.; [1963]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

    Abstract : .... READ MORE

  4. 4. Crystal chemistry of Fe-Ti oxides in mafic rocks and metabasites: A study aimed at refinement of geological tools and interpretations

    University dissertation from Department of Mineralogy and Petrology, Lund University

    Author : Benyam Estifanos; Lund University.; Lunds universitet.; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fe-Ti oxide; hercynite; siderite; stilpnomelane; olivine corona; Swedish Caledonides; hysteresis; PIXE; synchrotron XRD; Rietveld; microprobe; red corundum; palaeomagnetism; eclogite; plagioclase clouding; dolerite; pyroxene gneiss; Geology; physical geography; Geologi; fysisk geografi;

    Abstract : This thesis consists of four subprojects: (A) ‘Clouding of plagioclase by Fe-Ti oxides’, (B) ‘Fe-Ti oxides during high-pressure metamorphism of mafic rocks’, (C) ‘Magnetic study of Fe-Ti oxides in mafic rocks and metabasites’, and (D) ‘Topotactic phase transitions in oxide minerals’. A) In southern Sweden dolerite dikes and gabbros with clouded plagioclase are common. READ MORE

  5. 5. Sveconorwegian orogenesis in the southwestern Baltic Shield - Zircon geochronology and tectonothermal setting of orthogneisses in SW Sweden

    University dissertation from Department of Geology, Lund University

    Author : Jenny Andersson; Lund University.; Lunds universitet.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Petrology; Geologi; fysisk geografi; physical geography; Geology; structural markers; augen gneiss; orthogneiss; migmatite; ion microprobe; Pb-Pb evaporation; U-Pb; geochronology; zircon; Sweden; Mylonite Zone; Western Segment; Sveconorwegian orogen; Eastern Segment; mineralogy; geochemistry; Petrologi; mineralogi; geokemi;

    Abstract : The Mylonite zone (MZ) is a prominent late-Sveconorwegian lithological terrane boundary in the SW Baltic Shield along which large-scale crustal block movements took place during the Sveconorwegian orogeny. The southern section of the MZ also defines a conspicuous metamorphic break separating upper amphibolite and high-pressure granulite facies rocks in the parautochthonous Eastern Segment (ES), from middle amphibolite facies rocks in the overlying Western Segment (WS). READ MORE