Sökning: "Silurian"

Visar resultat 6 - 10 av 37 uppsatser innehållade ordet Silurian.

  1. 6. Carbonate sedimentology and carbon isotope stratigraphy of the Tallbacken-1 core, early Wenlock Slite Group, Gotland, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Jan Radomski; [2018]
    Nyckelord :Silurian; Gotland; Wenlock; carbon isotope stratigraphy; Slite Group; Hangvar Formation; sea level; carbonate platform; Earth and Environmental Sciences;

    Sammanfattning : Den mer än 700 m mäktiga lagerföljden på Gotland är erosionsresterna av vidsträckta karbonatplattformar som bildades i den Baltiska bassängen under silurperioden. Detta arbete fokuserar på stratigrafin och bergarterna i borrkärnan Tallbacken-1 som togs upp vid Stora Vede av Sveriges geologiska undersökning år 2006. LÄS MER

  3. 7. A geophysical survey (TEM; ERT) of the Punata alluvial fan, Bolivia

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Joakim Mårdh; [2017]
    Nyckelord :electromagnetic; geophysics; TEM; Punata; alluvial fan; Earth and Environmental Sciences;

    Sammanfattning : The Punata alluvial fan, situated in central Bolivia (Valle Alto) between the Altiplano and the lowlands, is an important aquifer for the local rural population. Due to rapid development and population growth in the area, the demand for fresh water has increased in recent year. LÄS MER

  4. 8. Metodundersökning : utvärdering av borrhålskartering avseende kalksten för industriella ändamål, File Hajdarbrottet, Slite, Gotland

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Fredrik Nylén; [2017]
    Nyckelord :kemi; geofysiska mätningar; kartering; metodik; Gotland; Slite; File Hajdar; kaxprover; Earth and Environmental Sciences;

    Sammanfattning : Abstract: On the north–eastern part of Gotland, in Slite, a mapping method has been tested in the Silurian bed-rock. The aim of the study was to develop a new mapping method adapted for industrial purposes on behalf of Ce-menta AB. The developed method is based on chemical analyses of drill cuttings and geophysical surveys. LÄS MER

  5. 9. Pressure-Temperature-time Constraints on the Deep Subduction of the Seve Nappe Complex in Jämtland and southern Västerbotten, Scandinavian Caledonides

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Johanna Holmberg; [2017]
    Nyckelord :Seve Nappe Complex; COSC-1; Raman spectroscopy; QuiG barometry; kyanite-garnet gneiss; Lu-Hf garnet geochronology; Seveskollan; COSC-1; Raman spektroskopering; QuiG barometri; kyanit-granatförande gnejs; Lu-Hf granat geokronologi;

    Sammanfattning : The Scandinavian Caledonides are defined by long transported thrust sheets emplaced in a nappe stratigraphic succession onto the Paleozoic Baltica platform, as a result of the collision between the paleo-continents Baltica and Laurentia. This Palaeozoic collisional orogen is nowadays exposed at mid-crustal levels, thus provides an excellent ground for in situ studies of mountain building processes. LÄS MER

  7. 10. The Metamorphic History of the Helags Mountain Area, Scandinavian Caledonides

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Sara Johansson; [2016]
    Nyckelord :Seve Nappe Complex; Scandinavian Caledonides; metamorphism; monazite geochronology; garnet;

    Sammanfattning : The Scandinavian Caledonides formed as a result of collision between the continents Baltica and Laurentia, in Silurian and Early Devonian time. The evolution of the orogen has been a topic of research since before the turn of the last century. LÄS MER