Sökning: "Precambrian bedrock"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Precambrian bedrock.

  1. 1. Berggrundsmorfologiska studier över kustslätten och Norrlandsterrängen inom delar av Umeå kommun, norra Norrland

    Författare :Karel Miškovský; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Precambrian bedrock; Fennoscandia; morphology; Umeå; weathering processes;

    Sammanfattning : The aim of this studv is to investigate interrelationships betweenbedrock relief and geological material. The area of investigation covers ca 350 km and is located in the Precambrian bedrock in the central part of Umeå commune, in northern Norrland. LÄS MER

  3. 2. Uranium mineralizations and age relationships in the precambrian bedrock of central and southeastern Sweden

    Författare :Eric Welin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  4. 3. The role of tectonics, structures and etch processes for the present relief in glaciated Precambrian besement rocks of SW Sweden

    Författare :Magnus Johansson; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Landforms; morphotectonics; palaeosurfaces; GIS; digital elevation data; granite; deep weathering; saprolites; etchsurface; basins; structures; glacial reshaping; roche moutonnée; Naturgeografi; Physical Geography;

    Sammanfattning : In high latitudes, landscapes of low relief are known to contain residues of pre-glacial deep weathering, or etching, which testify to limited modification of the pre-glacial relief by the Pleistocene ice sheets. In this thesis landforms in all scales are classified according to their process of formation. LÄS MER

  5. 4. Lithology of some Swedish eskers

    Författare :Marianne Lilliesköld; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Three esker systems passing different bedrock areas are lithologically investigated. Mostparts of the eskers are of subglacial, subaquatic type. The existence of a preglacial furrowof the River Dalälven is proposed to be the cause of the longtransported lithologiesfound in the Badelunda esker adjacent to the furrow. LÄS MER

  7. 5. Structural and neural network analyses of fracture systems at the Äspö Hard Rock Laboratory, SE Sweden

    Författare :Manhal Sirat; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Fractures; artificial neural networks; data analysis; Äspö HRL; Geovetenskap; Earth sciences; Geovetenskap; Geofysik med inriktning mot fasta jordens fysik; Geophysics with specialization in Solid Earth Physics;

    Sammanfattning : The > 10,000 fractures documented in the 450m deep Äspö Hard Rock Laboratory (HRL) provide a unique opportunity to study brittle deformation of a Swedish bedrock mass. The fracture population consists of six major sets, one subhorizontal and five sub-vertical. LÄS MER