Sökning: "igneous rock texture"
Visar resultat 1 - 5 av 6 uppsatser innehållade orden igneous rock texture.
1. Implications of Magma and Bedrock Interaction, a Study of Xenopumice from La Palma, the Canary Islands
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : This thesis focuses on frothy, felsic xenoliths called ‘xenopumice’, that were retrieved from La Palma during a 10–day field campaign in December 2018. There are only few descriptions of these frothty xenoliths, and a consensus on their origin has not yet been achieved. LÄS MER
2. 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
3. Garnet amphibolite in the internal Eastern Segment, Sveconorwegian Province : monitors of metamorphic recrystallization at high temperature and pressure during Sveconorwegian orogeny
Master-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : The analyzed area exposes a deep underthrusting lower plate of the Sveconorwegian orogen and facilitates studying of an elsewhere hidden portion of the Earth. Petrographic and structural studies of different metamorphic rock types within the southern Eastern Segment, Sveconorwegian Province, Sweden, were carried out to better understand the regional metamorphism and deformation history. LÄS MER
4. Structural Reconnaissance Mapping of the Nasa Basement Window, Southern Norrbotten Caledonides
Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurserSammanfattning : Too few documentative descriptions exist from the reactivated Proterozoic Nasa Basement window in Sweden. This re-exposed crustal piece predominantly consisting of 1.8 Ga granite and volcanic basement rock lack structural evidences on maps. LÄS MER
5. Characterization of the Hydrothermal Alteration around the Björkdal Au Deposit, Skellefte District, Sweden
Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Geovetenskap och miljöteknikSammanfattning : Sixteen samples from 8 locations within and surrounding the Björkdal mine area in northern Sweden were chosen in order to reevaluate and characterize previous interpretations of the lithology and hydrothermal alteration. Geochemical analysis by ICP-MS was made in order to chemically classify the lithology of the area and petrological studies were made by study of thin sections and core logging. LÄS MER