Search for dissertations about: "sedimentary"

Showing result 1 - 5 of 143 swedish dissertations containing the word sedimentary.

  2. 1. Paleoenvironmental changes in central and coastal Tanzania during the Upper Cenozoic : magnetostratigraphy, sedimentary records and shorelevel changes

    Author : Edmond Japhet Somi; Stockholms universitet; []
    Keywords : Kenozoiska eran; Paleoklimatologi; Tanzania;

    Abstract : .... READ MORE

  4. 2. Sedimentary development, magnetostratigraphy and sequence of events of the late Cenozoic in Entre Rios and surrounding areas in Argentina

    Author : Juan Carlos Bidegain; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Jordmagnetism;

    Abstract : .... READ MORE

  5. 3. Geochemical and sedimentary signatures of Phanerozoic events

    Author : Jane Wigforss-Lange; Berggrundsgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; geokemi; Sedimentology; Petrology; mineralogy; geochemistry; Petrologi; mineralogi; Carbon and oxygen isotopes; Jurassic-Cretaceous boundary; K-T boundary; Late Silurian; Events; Trace elements; Sedimentologi;

    Abstract : Geological and biological catastrophic events have occurred repeatedly in the Earth's history, leaving traces in the global stratigraphical record in the form of sedimentary features, geochemical anomalies and biotic turnovers. This thesis focuses on the sedimentological and geochemical signatures of several key events in the Phanerozoic stratigraphical record, and aims to interpret the different signals and the causal mechanisms behind each of these events. READ MORE

  6. 4. Early–Middle Ordovician biotic and sedimentary dynamics in the Baltoscandian paleobasin

    Author : Anders Lindskog; Berggrundsgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ordovician; ‘orthoceratite limestone’; carbonate sedimentology; microfacies; paleoecology; paleoenvironment; paleontology; Baltoscandia;

    Abstract : The Baltoscandian region forms part of the paleocontinent Baltica, which was largely covered by a shallow epeiric sea throughout much of the Ordovician (c. 485.5–444 Ma). This ancient sea is today recorded by a thin succession of sedimentary rocks. READ MORE

  7. 5. Compositional clues to sources and sinks of terrestrial organic matter transported to the Eurasian Arctic shelf

    Author : Emma Karlsson; Örjan Gustafsson; Volker Brüchert; Thorsten Dittmar; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; organic carbon; degradation; microcosm; incubation; terrestrial biomarkers; acyl lipids; lignin phenols; radiocarbon; Eurasian Arctic shelf; East Siberian Sea; Laptev Sea; Lena River; colloidal matter; particulate matter; sedimentary matter; Applied Environmental Science; tillämpad miljövetenskap;

    Abstract : The amount of organic carbon (OC) present in Siberian Arctic permafrost soils is estimated at twice the amount of carbon currently in the atmosphere. The shelf seas of the Arctic Ocean receive large amounts of this terrestrial OC from Eurasian Arctic rivers and from coastal erosion. READ MORE