Essays about: "Shear zone"

Showing result 21 - 25 of 37 essays containing the words Shear zone.

  1. 21. The Metamorphic History of the Helags Mountain Area, Scandinavian Caledonides

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Sara Johansson; [2016]
    Keywords : Seve Nappe Complex; Scandinavian Caledonides; metamorphism; monazite geochronology; garnet;

    Abstract : The Scandinavian Caledonides formed as a result of collision between the continents Baltica and Laurentia, in Silurian and Early Devonian time. The evolution of the orogen has been a topic of research since before the turn of the last century. READ MORE

  3. 22. The influence of weakness zones on the tunnel stability based on investigations in Bodøtunnelen

    University essay from Luleå tekniska universitet/Geoteknologi

    Author : Viktor Renström; [2016]
    Keywords : Rock mechanics; Numerical modeling;

    Abstract : When planning for a tunnel, the ground conditions in which the tunnel is going to be excavated through will be investigated to different extent. Lack of relevant pre-investigation data or misinterpretations of the available data can cause both economical and/or unexpected stability problems. READ MORE

  4. 23. Small-Scale Shear Zones and Deformation in Migmatite on Mt. Åreskutan

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Johanna Gottlander; [2015]
    Keywords : Shear zone; migmatite; Åreskutan; deformation; garnet;

    Abstract : The Åreskutan nappe complex consists of the partly molten rock migmatite, which originates from the subduction formed by the collision of continents Baltica and Laurentia. It is a so-called hot nappe, which has been deeply buried in the subduction zone, based on findings of high-pressure minerals in the migmatitic gneiss. READ MORE

  5. 24. Modeling the Propagation of Aortic Dissection

    University essay from KTH/Skolan för teknik och hälsa (STH)

    Author : Selda Sherifova; [2015]
    Keywords : ;

    Abstract : Aortic dissection is a diseased condition of the aorta in which there is an initial tear to the intimal layer propagating in the radial direction initially then causing delamination of the arterial layers creating a false lumen. It is estimated to effect 30 individuals in one million per year. READ MORE

  6. 25. The Birimian event in the Baoulé Mossi domain (West African Craton) : regional and global context

    University essay from Lunds universitet/Geologiska institutionen

    Author : Mikael Grenholm; [2014]
    Keywords : accretionary orogen; Atlantica; Birimian event; supercontinent cycle; Lomagundi-Jatuli event; Earth and Environmental Sciences;

    Abstract : The crystalline basement of the West African Craton (WAC) was established during the Siderian to Orosirian (circa 2.35-1.95 Ga) Birimian event through accretion of extensive tracts of juvenile crust that was tectonically juxtaposed with Archean cratons. READ MORE