Sökning: "Gabbro"

Visar resultat 1 - 5 av 14 uppsatser innehållade ordet Gabbro.

  1. 1. Magma-Carbonate Interaction and CO2 Release: A Case Study from Carlingford Igneous Centre, Ireland

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Emelie Lagrosen; [2020]
    Nyckelord :Magma-carbonate interaction; CO2; calc-silicate; skarn; marble; Carlingford; SEM-EDX; XRF; LA-ICP-MS; Magma-karbonat-interaktion; CO2; kalk-silikat; skarn; marmor; Carlingford; SEM-EDX; XRF; LA-ICP-MS;

    Sammanfattning : Magma which intrudes into carbonate rich crust, interacts with the carbonate in several ways, for example by contact metamorphism and formation of marble or by metasomatism resulting in calc-silicate skarn. These processes release volatiles, such as CO2, from the carbonate and might thus cause climate change. LÄS MER

  3. 2. Qualitative and quantitative petrography of meta-mafic rocks at Ölme, in the Eastern Segment of the Sveconorwegian orogen

    Kandidat-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :Diana Carlsson; [2015]
    Nyckelord :metamorphism; high pressure; amphibolite; granulite; gabbro; metagabbro; garnet-amphibolite; complex coronitic textures; symplectite; Eastern Segment; Transitional section;

    Sammanfattning : Meta-mafic intrusions with an intrusion age of 1.6-0.9 Ga are found along a north-south trend in theTransitional section of the Eastern Segment in Sweden. These intrusions are garnet-bearing and thus anexception to other meta-mafic intrusions found in Sweden. LÄS MER

  4. 3. Determining the depth of magma storage by investigation of samples from the eruption on La Palma 1971

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Anna Svensson; [2013]
    Nyckelord :canary islands; volcanism; magma storage;

    Sammanfattning : The Canary islands are formed by a slow moving hotspot, from Fuerteventura 20 Ma to el Hierro 1.2Ma years old and La Palma is in the shield building stage of evolution. La Palma had its last eruption 1971 and has had seven eruptions since 1430, which makes it the most active of the islands in our times. LÄS MER

  5. 4. Amphibolites, structures and metamorphism on Flekkerøy, south Norway

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Ina Vang; [2011]
    Nyckelord :amphibolite; structures; metamorphism; bedrock; Flekkerøy; southern Norway; Kristiansand; amfibolit; strukturer; metamorfos; berggrund; södra Norge; Earth and Environmental Sciences;

    Sammanfattning : The island of Flekkerøy outside Kristiansand, southern Norway, consists of meta-greywacke, amphibolitic gneiss, granitic gneiss, tonalitic gneiss, hornblenditic mafite, pegmatite and metadolerite. The oldest rocks were probably formed around 1.5 Ga in an arc environment. During the Sveconorwegian orogeny, 1. LÄS MER

  7. 5. Metamorphosed and partially molten hydrothermal alteration zones of the Akulleq glacier area, Paamut gold province, South-West Greenland

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Magnus Asiboh Tebi; [2011]
    Nyckelord :remobilized gold; South-West Greenland; Paamiut gold province; hydrothermal alteration; sulfide; Paamiut guldprovins; sydvästra Grönland; hydrotermal omvandling; sulfid; Earth and Environmental Sciences;

    Sammanfattning : Området kring akulleqglaciären ligger i närheten av bosättningen Paamiut, sydvästra Grönland. Tonalit- trondhjemit och granodioritgnejser (TTG) utgör huvudlitologin i området. Inom TTG-gnejserna återfinns ett cirka 1 km brett hästskoformat bälte av suprakrustala bergarter. LÄS MER