Sökning: "peridotite"
Hittade 5 uppsatser innehållade ordet peridotite.
1. Lejarfjället Garnet(?) Peridotite – Origin and Petrological Characterization of Symplectitic Aggregates in Ultramafic Rocks
Kandidat-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonikSammanfattning : Ultramafic rocks are abundant in the Earth’s mantle but rare on the surface. Since no in-situ samples from the mantle can be collected, mantle rocks provide knowledge of mechanisms operating in the mantle and large-scale processes that brought them up to the surface. LÄS MER
2. The “ultramafic” Intrusion’s within the peridotite from Härbergsdalen : Petrological characterization of infiltration record within the lithospheric mantle
Kandidat-uppsats, Uppsala universitet/Mineralogi, petrologi och tektonikSammanfattning : The mantle constitutes ~80% of Earths volume, however, due to its location deep beneath Earth’s surface the mantle is inaccessible to study in situ. Despite this, we still have information about its composition thanks to seismic studies which haven proven the mantle to be in generally homogenous and dominated by a rock called peridotite. LÄS MER
3. The Roots of a Magma Chamber, the Central Intrusion, Rum, NW-Scotland
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : The island of Rum in the Inner Hebrides, NW-Scotland, hosts a central volcanic complex that is part of the British-Irish Palaeogene Igneous Province situated in NE- Ireland and NW- Scotland. On Rum, rocks from several stages of Palaeogene magmatic activity have been exposed by millions of years of erosion. LÄS MER
4. Chromite in serpentine mud volcanoes of the Mariana forearc: Implications for abiotic organic reactions
Magister-uppsats, Institutionen för geologiska vetenskaperSammanfattning : The Mariana convergent plate margin is a non- accretionary subduction system in the western Pacific Ocean. Subduction of the Pacific plate causes dissolution of carbonate minerals releasing inorganic carbon, and causes dehydration of hydrous minerals in the subducted slab, generating hydrous fluids. LÄS MER
5. A geochemical characterization of the lower part of the Miocene shield-building lavas on Gran Canaria
Master-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : Ocean islands offer a great potential to provide information about mantle processes and the composition of the mantle. Gran Canaria is located in the centre of the Canary Island Archipelago and is well suited for such studies. A comprehensive study of the lower Miocene shield-building lavas is performed for this thesis. LÄS MER