Sökning: "magma chamber"
Visar resultat 1 - 5 av 12 uppsatser innehållade orden magma chamber.
1. Syn-Magmatic Deformation Structures in the Slaufrudalur Pluton, East Iceland
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Structures and deformation mechanisms of magmatic rocks are controlled by rheology. An increase in melt fraction can weaken a rock body and localises significant amount of strain. This interplay between rheology, melting and deformation in a magma reservoir, however, is not always clearly documented in literature. LÄS MER
2. Magma Mixing and ReplenishmentBeneath Laurens Peninsula, Heard Island
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Heard Island is a remote Australian territory which lies in the South-middle sector of the Indian Ocean.The island lies in the central province of the Kerguelen Plateau. On the north-western face of the islandlies the Laurens Peninsula, where modern volcanism has been periodic since approximately 10 ka, butno eruption has been recorded. LÄS MER
3. 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 institutionenSammanfattning : 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
4. The Crystal Size Distribution of Cerro Bayo
Kandidat-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonikSammanfattning : To understand the complex structure of magmatic plumbing systems beneath volcanoes, one needs to study the different textures shown in the igneous rocks produced by the volcano in question. By doing this, one can get a clue of the processes that resulted in the final rock. LÄS MER
5. Magmatic Sources and Processes Recorded by the Volcanics from the Izu Bonin Rear Arc
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : The Izu rear-arc volcanism was investigated by IODP EXP350 in spring 2014. A total stratigraphy of1800 m was drilled, and contains volcaniclastic material within tuffaceous mudstone. LÄS MER