Sökning: "late Neogene"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden late Neogene.

  1. 1. Eastern equatorial Pacific bulk sediment properties and paleoceanography since the late Neogene

    Författare :Daniele Reghellin; Helen K. Coxall; Jan Backman; Gerald R. Dickens; Steve Hovan; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Paleoceanography; late Neogene; eastern equatorial Pacific; deep sea sediments; bulk sediment; stable isotopes; surface mixed layer; sediment physical properties; maringeologi; Marine Geology;

    Sammanfattning : Reconstructing eastern equatorial Pacific (EEP) oceanography since the late Neogene (about 8 million years ago, Ma) is a central topic in current paleoceanographic investigations. The reason for this is two-fold. LÄS MER

  2. 2. Palaeosurfaces and palaeovalleys on North Atlantic previously glaciated passive margins : reference forms for conclusions on uplift and erosion

    Författare :Johan M. Bonow; Karna Lidmar-Bergström; Clas Hättestrand; Jens-Ove Näslund; Mats Olvmo; Adrian Hall; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; palaeosurface; palaeovalley; uplift; valley; incision; glacial erosion; weathering; Neogene; southern Norway; West Greenland; Earth sciences; Geovetenskap;

    Sammanfattning : Palaeosurfaces and palaeovalleys are landforms under destruction in the present climate and/or tectonic regime, and thus mainly reflect processes not active today. Uplifted palaeosurfaces exist along the formerly glaciated passive continental margins around the North Atlantic. LÄS MER

  3. 3. Paleoenvironmental significance of Baltic and North Atlantic late neogene benthic foraminifera

    Författare :Otto Hermelin; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is a summary of six previously published or submitted articles on (1) the significance of the geographic distribution of Recent benthic foraminifera in the Baltic Sea and the central North Atlantic, and (2) the significance of the stratigraphic distribution of Pliocene benthic foraminifera from the Blake Plateau, western North Atlantic.Recent benthic foraminifera in the Baltic Sea have a geographic distribution strongly correlated to the highly variable hydrographical conditions. LÄS MER

  4. 4. Late Neogene Benthic Foraminifera from the Caribbean Sea and Eastern Equatorial Pacific Ocean

    Författare :Lennart Bornmalm; Göteborgs universitet; Göteborgs universitet; Gothenburg University; Göteborgs universitet; Gothenburg University; []
    Nyckelord :; Benthic Foraminifera; Caribbean Sea; Eastern Equatorial Pacific Ocean;

    Sammanfattning : .... LÄS MER

  5. 5. Biostratigraphic implications of Neogene diatom abundances in the Norwegian Sea, the North Atlantic and the western North Pacific

    Författare :Per Bodén; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis consists of three separate articles and are mainly concerned with the taxonomy of species from the genus Thalassiosira and quantitative diatom biostratigraphy in three oceanic regions of the northern hemisphere. The study material consists of Ocean Drilling Program (ODP) Holes 642B, 642C and 644A at about 67°N in the Norwegian Sea, Deep Sea Drilling Project (DSDP) Hole 552A at 56 N in the North Atlantic, and DSDP Site 578 at 34°N in the northwest Pacific. LÄS MER