Sökning: "seismic data"

Visar resultat 21 - 25 av 85 uppsatser innehållade orden seismic data.

  1. 21. First-arrival traveltime tomography of active-source data in the Kansanshi copper mine, northern Zambia

    Magister-uppsats, Uppsala universitet/Geofysik

    Författare :Vessela Hobson; [2019]
    Nyckelord :refraction seismics; tomographic inversion; Zambian Copperbelt; copper;

    Sammanfattning : Sedimentary rock-hosted deposits are a major source of copper and cobalt, with the Neoproterozoic central African Copperbelt being among the largest Cu-Co provinces in the world, accounting for around 15% of its copper resource. The deposits occur primarily in the carbonates and siliciclastic sediments overlying the basement, and formed during early diagenesis (around 820 Ma) and late diagenesis/metamorphism during the Pan-African Orogeny (580-520 Ma). LÄS MER

  3. 22. A 3D Sub-Surface Characterisation of the Arnager Greensand, South-west Skåne

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Gregory Marcel Davies Jones; [2019]
    Nyckelord :Arnager Greensand; digitization; depth conversion; reservoir; storage potential;

    Sammanfattning :  A surface characterisation of the Arnager Greensand in south Sweden, a deep saline aquifer found to be suitable for geological storage of CO2 or energy storage, was undertaken in this thesis. Vintage seismic reflection data only available as scanned tiff images of the final stacked sections were digitized and processed using modern interpretation software to provide new insights into the morphology of the Arnager Greensand and to analyse the reservoir’s potential as an energy storage unit. LÄS MER

  4. 23. Determining shallow P-wave velocity and its engineering implication in Adama City, Ethiopia

    Kandidat-uppsats, Uppsala universitet/Geofysik; Uppsala universitet/Institutionen för teknikvetenskaper

    Författare :Tasnim Laskar; [2019]
    Nyckelord :Ethiopia; seismic refraction; earthquake;

    Sammanfattning : A great number of the urban areas in Ethiopia are situated within the Great Rift Valley of Ethiopia, a system consisting of depressions and large faults. As a region with significant seismic activities, it is vital that careful planning is implemented to avoid constructing buildings on flat surfaces as they can amplify ground motion in the case of an earthquake. LÄS MER

  5. 24. Quantification of tribological effects in expansion fasteners

    Master-uppsats, KTH/Materialvetenskap

    Författare :Nicolò Drahorad; [2019]
    Nyckelord :post-installed anchors; civil construction; tribology; antifriction coatings;

    Sammanfattning : Post-installed anchors for civil construction are elements that ensure the integrity of building structures even under the most severe static, seismic and shock loadings. Despite the high popularity of this technology in construction sites all over the world, the current state of knowledge is limited and there is still a great potential for significant improvements. LÄS MER

  7. 25. Deriving Geothermal Reservoir Properties from Tomographic Models

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Samantha Kim; [2019]
    Nyckelord :Geothermal reservoir; super-critical fluids; optimization; seismic tomography; effective medium model; Iceland; Geotermisk energi; seismisk; mediummodel; reservoir; spricktäthet; superkritisk vätska optimisering;

    Sammanfattning : The effectiveness of the heat transfer in a geothermal reservoir strongly depends on its temperature, pressure and rock type. A porous and fractured rock is essential to provide a hot fluid circulation to a geothermal power plant. LÄS MER