Sökning: "Ulvö"

Hittade 3 avhandlingar innehållade ordet Ulvö.

1. 1. Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden

   Författare :Johan Hogmalm; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; layered intrusion; fractional crystallization; modal layering; in situ crystallization; Ulvö; saucer-shaped sill; post-cumulus; LA ICP-MS;

   Sammanfattning : Fractional crystallization of magma is a commonly invoked mechanism for chemical differentiation in systems that range from volcanoes to entire planets. However, the processes that control separation of crystals and liquids in natural systems remain controversial, since the dynamics of crystallizing magma chambers cannot be studied directly. LÄS MER

3. 2. Layered intrusions of the Ulvö dolerite complex, Ångermanland, Sweden. : Geologiska Inst. Publ. A 36

   Författare :Sven Åke Larson; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Layerd intrusion; gabbro; pyroxene; olivine; Fe-Ti oxide;

   Sammanfattning : .... LÄS MER

4. 3. Magnetic anisotropy and paleomagnetism of precambrian rocks in the Fennoscandian shield

   Författare :Håkan Johannes Mattsson; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tillämpad geofysik; Applied Geophysics;

   Sammanfattning : This thesis presents three applications of the anisotropy of magnetic susceptibility (AMS) technique, dealing with tectonic and magmatic flow fabrics of Proterozoic igneous rocks in the central and northern parts of the Fennoscandian Shield. Paleomagnetic measurements were performed in attempts to put the different rock units into a geological and plate tectonic context. LÄS MER