Essays about: "stratigraphy"

Showing result 31 - 35 of 63 essays containing the word stratigraphy.

  1. 31. Diatom analyses of sediment from Himmerfjärden estuary, southern archipelago of Stockholm : has the water discharge from a constructed sewage treatment plant led to eutrophication?

    University essay from Södertörns högskola/Institutionen för naturvetenskap, miljö och teknik

    Author : Lina Elander; [2015]
    Keywords : Diatom; Baltic Sea; Baltic Proper; Eutrophication; Coastal zone; Himmerfjärden; Diatom analyses; Sewage treatment plant;

    Abstract : A sediment core from Himmerfjärden estuary, south of Stockholm, was examined to detect records of eutrophication on the site since the opening of the sewage treatment plant Himmerfjärdsverket in 1974. The core was analysed with respect to the diatom record and lithology. READ MORE

  3. 32. Submarine slope instability as a cause of contaminated sediment dispersal in Ångermanälven, Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Hannes Berg Wiklund; [2015]
    Keywords : Submarine landslides; contaminated sediments; weak layers; Ångermanälven; Undervattenskred; förorenade sediment; svaga lager; Ångermanälven;

    Abstract : This study aims at providing results for the analysis of the stratigraphy underlying contaminated sediments in Ångermanälven. The contaminated sediments, containing heavy metals and persistent organic pollutants, are derived from wastewater discharged into Ångermanälven from nearby paper and pulp industries. READ MORE

  4. 33. Recent climate warming impact on the firn layers at Lomonosovfonna and Penny Ice Cap

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Christoffer Winander Schönning; [2014]
    Keywords : ;

    Abstract : Current climate warming has a disproportionally large impact on Arctic glaciers and ice caps. In this thesis, I examined stratigraphic changes observed in the top ~15 m of two Arctic ice caps: one located at Svalbard (Lomonosovfonna) and the eastern Canadian Arctic Archipelago (Penny). READ MORE

  5. 34. Eocene-Oligocene Benthic Foraminifera Stable Isotope Stratigraphy and Paleoceanography of ODP Site 757 and 756, Ninetyeast Ridge, Southern Indian Ocean

    University essay from Stockholms universitet/Institutionen för geologiska vetenskaper

    Author : Max Holmström; [2014]
    Keywords : ;

    Abstract : The EOT is marked by a two-step shift in the δ18O record of benthic foraminifera. The transition was rapid (500 000 years) and occurred roughly 34 million years ago. READ MORE

  6. 35. Geophysical Mapping around Björkö Island in Lake Mälaren, South central Sweden

    University essay from Institutionen för geologiska vetenskaper

    Author : Oscar Fransner; [2013]
    Keywords : Marine geosciences; geophysics; archeology; Birka; Mälaren; subbottom profiling; sediment stratigraphy; multibeam echosounder; backscatter; angular range analysis; shipwrecks.;

    Abstract : The former Viking settlement Birka is located on Björkö Island in Lake Mälaren, the third largest lake in Sweden. Birka is a well-known archeological site that onshore has been carefully examined. READ MORE