Sökning: "Anorthosite"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet Anorthosite.

1. 1. Major and trace element geochemical analysis of norites in the Hakefjorden Complex to constrain magma source and magma plumbing systems

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Aodhan Barrett; [2020]
   Nyckelord :Anorthosite; norite; Plagioclase; Hakefjorden Complex; Sweden; Trace Elements; Geochemistry; Magma Origin; Earth and Environmental Sciences;

   Sammanfattning : Major and trace element data taken from plagioclase crystals from anorthosites and related rock units in the Hakefjorden Complex located off the west coast of Sweden were investigated for the purposes of constraining magma chamber processes and the source of the magma. Although the anorthosite units were completely homogenous in regards to its chemistry, the plagioclase in the associated norite and ilmenite-leuconorite units showed substantial variation. LÄS MER

3. 2. [87]Sr/[86]Sr in plagioclase, evidence for a crustal origin of the Hakefjorden Complex, SW Sweden

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Alexandra Glommé; [2015]
   Nyckelord :Plagioclase; Älgön; Sr-isotopes; Sweden; MC-ICP-MS; Hakefjorden complex; geochemistry; SEM; Earth and Environmental Sciences;

   Sammanfattning : The studied intrusion, the Hakefjorden Complex on Älgön is a norite-anorthosite complex situated in the archipelago on the west coast of Sweden. The origin of the intrusion will be deduce through in situ Sr-isotope analysis by MC-ICP-MS (multiple collector- inductively coupled plasma- mass spectrometry) on plagioclase, together with petrographic description and chemical analysis. LÄS MER

4. 3. Using Fe-Ti oxides and trace element analysis to determine crystallization sequence of an anorthosite-norite intrusion, Älgön SW Sweden.

   Master-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Sara Kullberg; [2015]
   Nyckelord :magma origin; AFC-model; ilmenite; ilmenite-rich leuconorite; anorthosite-norite; Earth and Environmental Sciences;

   Sammanfattning : På Älgön, SV Sverige, finns en anortosit-norit intrusion tillhörande Hakefjordenkomplexet. Det finns dessutom två tillhörande enheter; en marginell monzonorit och en centralt belägen ilmenitberikad norit (IRL). I den ilmenitberikade noriten finns även olika sorters aggregat av Fe-Ti oxider. LÄS MER

5. 4. En strukturgeologisk modell för berggrunden i Sarvesvagge-Luottolako-området, Sareks Nationalpark, Lappland

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Mats G. Lund; [1999]
   Nyckelord :Caledonides; overthrusting; duplex; tectonostratigraphy; structural geology; Sarek; Earth and Environmental Sciences;

   Sammanfattning : The high plateau of Luottolako constitutes a topographical area strongly contrasting from the rugged Sarek Mountains. Older geological maps show that not only the topography, but also the bedrock is different compared to the surrounding massifs. However, the boundaries in the previously publis-hed maps indicate impossible structural models. LÄS MER

7. 5. Tektonostratigrafi och strukturgeologi i Ålkatj-Tielmamassivet, norra svenska Kaledoniderna

   Magister-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Emma Rehnström; [1998]
   Nyckelord :geografi; geologi; Ålkatj-Tielmamassivet; tektonostratigrafi; strukturgeologi; svenska Kaledoniderna; Earth and Environmental Sciences;

   Sammanfattning : The bedrock of the Ålkatj-Tielma massif in the central part of the Sarek National Park in the northern Scandinavian Mountains, has never before been investigated. This massif was mapped during the summer of 1997 and the bedrock consists entirely of Caledonian nappes. LÄS MER