Search for dissertations about: "quarternary"

Showing result 1 - 5 of 19 swedish dissertations containing the word quarternary.

  2. 1. Quarternary glaciations and pluvial lakes in British East Africa

    Author : Erik Nilsson; Stockholms högskola; []
    Keywords : ;

    Abstract : .... READ MORE

  4. 2. Holocene Environmental Change of Southern Öland, Sweden

    Author : Kerstin Alm Kübler; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Pollen analysis; Öland; Sweden; heath vegetation; landscape history; Fagus; beach ridges; numerical analysis; Geovetenskap; Earth sciences; Geovetenskap; Quarternary Geology; kvartärgeologi;

    Abstract : This thesis describes Holocene environmental change in Ottenby, southern Öland,Sweden. Analyses of pollen sequences collected distally in the Littorina ridge and in fentroughs between lower laying beach ridges show the vegetation history during twoperiods, the first around 8000 BP and the second from 0/500 AD to about present time. READ MORE

  5. 3. Dansgaard-Oeschger cycles and Heinrich events in western Europe - A diatom perspective

    Author : Linda Ampel; Barbara Wohlfarth; Jan Risberg; Sherilyn Fritz; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dansgaard-Oescher cycles; Heinrich events; MIS 3 and 2; diatoms; Les Echets; France; Quaternary geology; Kvartärgeologi; Quarternary Geology; kvartärgeologi;

    Abstract : The last glacial period was characterised by several abrupt climatic shifts referred to as Dansgaard-Oeschger (DO) cycles and Heinrich events. These shifts were most frequent between 60,000 and 20,000 years before present coinciding with Marine Isotope Stages (MIS) 3 and 2. READ MORE

  6. 4. Late Holocene humidity variability in central Sweden

    Author : Sofia Andersson; Stefan Wastegård; Gunhild Rosqvist; Kristian Schoning; Frank Chambers; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; humidity change; stable isotopes; Chara spp; Pisidium spp; testate amoebae assemblages; humification; C N ratio; late Holocene; central Sweden; Quaternary geology; Kvartärgeologi; kvartärgeologi; Quarternary Geology;

    Abstract : The aim of this thesis was to reconstruct humidity variability in central Sweden during the late Holocene. A multi-proxy approach was used to infer humidity changes as recorded in a lake and a mire. Age-models were constructed based on radiocarbon dating and the Askja-1875 tephra. READ MORE

  7. 5. Urban and rural environments from Iron Age to Medieval time in northern Europe : Evidence from fossil insect remains from South-Eastern Sweden and Novgorod, Russia

    Author : Magnus Hellqvist; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Late Holocene; Iron Age; Medieval time; subfossil insects; Coleoptera; environment; climate; human environment; taphonomy; south-eastern Sweden; Novgorod; Geovetenskap; Earth sciences; Geovetenskap; Quarternary Geology; Kvartärgeologi;

    Abstract : This thesis presents and discusses results from studies in of subfossil insect remains of natural and cultural origin. Samples were obtained by coring in sediments or by collection during archaeological excavations. The aim was to reconstruct local environment and climate in rural and early urban situations from Iron Age to medieval time. READ MORE