Search for dissertations about: "NAPPE"

Showing result 1 - 5 of 16 swedish dissertations containing the word NAPPE.

2. 1. Assembly of the Caledonian Orogenic Wedge, Jämtland, Sweden

   Author : Hagen Bender; Uwe Ring; Bjarne SG Almqvist; Rob Strachan; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; collisional orogeny; Scandinavian Caledonides; Seve Nappe Complex; Köli Nappe Complex; in-sequence thrusting; out-of-sequence thrusting; imbrication; nappe stacking; orogenic wedge assembly; Rb–Sr geochronology; rock magnetism; anisotropy of magnetic susceptibility; Geology; geologi;

   Abstract : Collisional orogeny creates the largest mountain belts on Earth. The Caledonides of Scandinavia are a deeply eroded, ancient mountain belt, which today exposes a deep section through the former orogenic interior. READ MORE

4. 2. Early structural and metamorphic evolution of the Scandinavian Caledonides: a study of the eclogite-bearing Seve Nappe Complex at the Arctic Circle, Sweden

   Author : Lena Gunlög Albrecht; Berggrundsgeologi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; oblique compression.; C -type shear bands; anastomozing shear zones; tubular folds; lineation-parallel folds; northern Sweden; Grapesvare Nappe; Seve Nappe Complex; Finnmarkian; Eclogite; corona dolerite; Petrology; mineralogy; geochemistry; Petrologi; mineralogi; geokemi;

   Abstract : In the Seve Nappe Complex of the Swedish Caledonides, coronitic diabases pass into eclogites; sometimes the transition occurs within one and the same boudin. Calculated pressure-temperature conditions for the eclogite facies stage are 20-27 kbar and 650-750°. READ MORE

5. 3. Testing Tectonic Concepts in the Seve Nappe Complex, Jämtland, Sweden

   Author : Hagen Bender; Uwe Ring; Bjarne Almqvist; Karin Högdal; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Caledonian orogeny; Seve Nappe Complex; Kinematic analysis; Geology; geologi;

   Abstract : When continental plates collide, one of the involved continents is subducted beneath the other one. As a consequence, the lithosphere thickens along the convergent plate boundary and causes the formation of a mountain belt. READ MORE

6. 4. The Köli Nappe complex in Tännforsfältet western Jämtland, Swedish Caledonides

   Author : Monica Beckholmen; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : This dissertation presents the Köli Nappe Complex of Tännforsfältet, an area of some 1200 km2 of volcano-sedimentary eugeoclinal rocks occurring in a shallow synformal basin, the Tännforsen Synform. The rocks have been metamorphosed under greenschist-lower amphibolite facies conditions. READ MORE

7. 5. Deep subduction of the Seve Nappe Complex in the Scandinavian Caledonides

   Author : Iwona Klonowska; Jarosław Majka; Peter Lazor; Marian Janák; Bjarne Almqvist; Jane Gilotti; Uppsala universitet; []
   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