Search for dissertations about: "North Greenland"

Showing result 1 - 5 of 33 swedish dissertations containing the words North Greenland.

  1. 1. Evolution and taxonomy of Cambrian arthropods from Greenland and Sweden

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Martin Stein; Uppsala universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cambrian; Arthropods; Trilobites; Evolution; Greenland; Sweden; NATURAL SCIENCES Earth sciences Exogenous earth sciences Historical geology and palaeontology; NATURVETENSKAP Geovetenskap Exogen geovetenskap Historisk geologi och paleontologi;

    Abstract : Arthropods have a rich fossil record spanning the Phanerozoic. Biomineralized forms such as the extinct trilobites are particularly common and are proven index fossils for biostratigraphy. Forms with an unmineralized cuticle are more rare, preserved only in so called konservat lagerstätten. READ MORE

  2. 2. The Early Cambrian Fauna of North-East Greenland

    University dissertation from Uppsala : Institutionen för geovetenskaper

    Author : Christian B. Skovsted; Uppsala universitet.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Early Cambrian; Dyeran; Botoman; Biostratigraphy; Palaeogeography; Small Shelly Fossils; Brachiopoda; Mollusca; Hyolitha; Trilobita; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : Small shelly fossils are common in sediments of Early Cambrian age and include the earliest common representatives of metazoan animals with mineralized hard parts. The group includes fossils of very different morphology, composition and ultrastructure. READ MORE

  3. 3. Long-term changes of mercury, lead and persistent organic pollutants in arctic environments

    University dissertation from Umeå : Ekologi, miljö och geovetenskap

    Author : Carola Lindeberg; Umeå universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Lake sediment; time trends; chlordane; hexachlorobenzene; mercury; lead; soil; climate changes; Arctic; Greenland; Sweden; Swedish mountains; PCB; PBDE; pesticides; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : The Arctic represents a huge area with poor infrastructure contributing to limited possibilities to establish monitoring and research programs. From the investigations that have been performed we know that the arctic environment is affected by anthropogenic emissions from lower latitudes, but knowledge about underlying transport processes, the arctic pollution extent and the rates of changes are limited. READ MORE

  4. 4. Cambro-Ordovician microorganisms: acritarchs and endoliths

    University dissertation from Uppsala : Institutionen för geovetenskaper

    Author : Martin Stockfors; Uppsala universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Cambrian; Ordovician; acritarch; endolith; Kolguev Island; North Greenland; Stratigraphy; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : Organic-walled microfossils are abundant and taxonomically diverse in Cambrian-Ordovician strata; some are important for biostratigraphy and for the correlation of geological successions. New assemblages of Cambrian-Ordovician acritarchs from Kolguev Island, Arctic Russia and Middle Cambrian ichnofossils of endoliths from Peary Land, North Greenland are studied. READ MORE

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

    University dissertation from Stockholm : Institutionen för naturgeografi och kvartärgeologi

    Author : Johan M. Bonow; Stockholms universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; palaeosurface; palaeovalley; uplift; valley; incision; glacial erosion; weathering; Neogene; southern Norway; West Greenland; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : 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. READ MORE