Sökning: "Silurian"

Visar resultat 1 - 5 av 34 uppsatser innehållade ordet Silurian.

  1. 1. Enigmatic worm-like fossils from the Silurian Waukesha Lagerstätte, Wisconsin, USA

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Märta Westberg; [2019]
    Nyckelord :Waukesha Lagerstätte; Silurian; soft-tissue preservation; Palaeoscolecida; Annelida; Arthropoda Waukesha Lagerstätte; silur; mjukvävnadsbevaring; Arthropoda; Earth and Environmental Sciences;

    Sammanfattning : The lower Silurian Waukesha Lagerstätte of Wisconsin, USA, is a Konservat-Lagerstätte which has yielded a diverse assemblage of exceptionally well-preserved soft-bodied organisms. This study comprises first-hand descriptions and assessments of 23 enigmatic worm-like specimens from the Waukesha Lagerstätte, alongside a literature review. LÄS MER

  2. 2. Stratigraphy, sedimentology and geophysical assessment of the early Silurian Halla and Klinteberg formations, Altajme core, Gotland, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Christopher Artursson; [2018]
    Nyckelord :Gotland; gamma ray; stratigraphy; carbonate sedimentology; drill core; Altajme; Ala-Fjäle; Klinteberg Formation; geophysical survey; Earth and Environmental Sciences;

    Sammanfattning : The Altajme drillcore was recovered from near Buttle in central Gotland in 2015. The core was drilled in outcrop belt of the late Wenlock (Silurian) Klinteberg Formation as a result from an international drilling campaign between the Department of Geology at Lund University and Iowa University, USA. LÄS MER

  3. 3. 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

  4. 4. 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

  5. 5. 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