Sökning: "Visingsö gruppen"

Hittade 2 uppsatser innehållade orden Visingsö gruppen.

1. 1. Depositional history of the Neoproterozoic Visingsö Group, south-central Sweden

   Kandidat-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Viktor Ahrenstedt; [2017]
   Nyckelord :sedimentology; depositional history; Visingsö Group; Neoproterozoic; Earth and Environmental Sciences;

   Sammanfattning : The Neoproterozoic sedimentary rocks of the Visingsö Group are one of few remaining rocks from this time. They provide a vital clue to understanding how the landscape looked at this time. The various environmental factors that prevailed and affected deposition are key to paint a bigger picture. LÄS MER

3. 2. Biodiversity of Organic-Walled Eukaryotic Microfossils from the Tonian Visingsö Group, Sweden

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Corentin Loron; [2016]
   Nyckelord :Organic-walled microfossils; Tonian; cyst; green algae; eukaryote; Visingsö Group; Mikrofossil med organiska cellväggar; tonian; cysta; grönalger; eukaryot; Visingsö gruppen;

   Sammanfattning : The diversification of unicellular, auto- and heterotrophic protists and the appearance of multicellular microorganisms is recorded in numerous Tonian age successions worldwide, including the Visingsö Group in southern Sweden. The Tonian Period (1000-720 Ma) was a time of changes in the marine environments with increasing oxygenation and a high input of mineral nutrients from the weathering continental margins to shallow shelves, where marine life thrived. LÄS MER