Sökning: "YOUNGER DRYAS"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden YOUNGER DRYAS.

  1. 1. Tephra horizons in the North Atlantic region during the Early Holocene

    Detta är en avhandling från Stockholm : Department of Physical Geography and Quaternary Geology, Stockholm University

    Författare :Ewa Lind; Stockholms universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tephrochronology; geochemical composition; Saksunarvatn Ash; Vedde Ash; Fosen Tephra; Askja-S; palaeoclimate; Younger Dryas; Early Holocene; “XRF ITRAX”; sediment geochemistry; stable isotopes; Faroe Islands; Norway; Sweden; Quaternary Geology; kvartärgeologi;

    Sammanfattning : Uncertainties about the rate and magnitude of future climate change have drawn attention to the climate variability following the Late Glacial-Early Holocene transition, c. 12-8 ka BP. LÄS MER

  2. 2. Palaeoclimate and palaeoceanography of the Skagerrak-Kattegat since the Late Weichselian based on diatom records

    Detta är en avhandling från Quaternary Sciences, Department of Geology, Lund University

    Författare :Hui Jiang; [1996]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; physical geography; Geology; meltwater; Preboreal; Younger Dryas; environmental variable; canonical correspondence analysis CCA ; Kattegat; Skagerrak; surface sediment; palaeoceanography; Diatom; palaeoclimate; Geologi; fysisk geografi; Palaeobotany; phylogeny; palynology; Paleobotanik; fylogeni; palynologi;

    Sammanfattning : Diatoms from the surface sediments and sediments cores in the Skagerrak-Kattegat were analyzed and the results were presented in four papers and discussions. The broad aims of this thesis are twofold. LÄS MER

  3. 3. Clay-varve chronology and deglaciation during the Younger Dryas and Preboreal in the easternmost part of the Middle Swedish Ice Marginal Zone

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Lars Brunnberg; [1995]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 4. Event stratigraphy for the Last Glacial-Holocene transition in eastern middle Sweden

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Jonas Björck; Stockholms universitet.; [1999]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Last Glacial-Holocene transition; event stratigraphy; eastern middle Sweden; pollen; plant macrofossils; marine calcareous fossils; microtephra; radiocarbon dating; clay varve chronology; GRIP; ice-core chronology; calendar year chronology; Preboreal oscillation; Yoldia Sea; Baltic Ice Lake; Quarternary Geology; kvartärgeologi;

    Sammanfattning : This thesis outlines an event stratigraphy for the Last Glacial-Holocene transition in eastern middle Sweden. Events are short-lived occurrences that have left traces in the geological record and which, therefore, may be used for correlation and inter-regional comparisons. LÄS MER

  5. 5. Deglacial impact of the Scandinavian Ice Sheet on the North Atlantic climate system

    Detta är en avhandling från Stockholm : Department of Geological Sciences

    Författare :Francesco Muschitiello; Stockholms universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; climate; North Atlantic; last deglaciation; isotope geochemistry; chronology; climate modeling; maringeologi; Marine Geology;

    Sammanfattning : The long warming transition from the Last Ice Age into the present Interglacial period, the last deglaciation, holds the key to our understanding of future abrupt climate change. In the last decades, a great effort has been put into deciphering the linkage between freshwater fluxes from melting ice sheets and rapid shifts in global ocean-atmospheric circulation that characterized this puzzling climate period. LÄS MER