Sökning: "seismic data"

Visar resultat 16 - 20 av 85 uppsatser innehållade orden seismic data.

  1. 16. Reflection Seismic Survey for Characterising Historical Tailings and Deep Targeting at the Blötberget Mine, Central Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :EMMANUEL ALOFE; [2021]
    Nyckelord :reflection seismic; exploration; tailings; sustainability; circularity; tomography; reflektion seismisk; prospektering; gruvavfall; hållbarhet; cirkularitet; tomografi;

    Sammanfattning : Iron has been an essential element to human development and iron-oxide deposits are known to host minerals that are labelled as critical raw materials (CRMs), especially in the EU. Therefore, ensuring a sustainable supply of CRMs require access to both primary and secondary sources of their host deposits such as iron oxides. LÄS MER

  3. 17. Potentiella nedslagskratrar i Sverige med fokus på Östersjön och östkusten

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Jonna Johansson; [2020]
    Nyckelord :nedslagsstrukturer; potentiella nedslagsstrukturer; Östersjön; östkusten; Gotland; Earth and Environmental Sciences;

    Sammanfattning : Impact structures are one of the most common geologic structures in our solar system, but relatively few impact structures have been found on Earth. There are many reported potential impact structures, but few have been investigated or confirmed. LÄS MER

  4. 18. Befintlig och framtida infrastruktur i Dennewitz malmkropp : Prognos och rekommendationer

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Johan Winsa; [2020]
    Nyckelord :bergmekanik; geologi; strukturgeologi; skadekartering; Dennewitz; Malmberget; LKAB;

    Sammanfattning : During mining in the Malmberget mine, large amounts of information such as damage mapping, geological mapping, seismic data and stress conditions are stored. All the data that is obtained is stored in several places with different methods, which makes it problematic to use. LÄS MER

  5. 19. Analysis of Seismic Data Acquired in the Hverahlíð Geothermal Area

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Agnieszka Stoch; [2020]
    Nyckelord :Hverahlíð geothermal area; reflection seismic; virtual reflection seismic profiling; virtual shot gather; cross-correlation; autocorrelation;

    Sammanfattning : Volcanic rifting environments, such as in Iceland, are challenging for conventional seismic reflection methods using active surface seismic sources. This study demonstrates the potential of a novel technique, called Virtual Reflection Seismic Profiling (VRSP) for imaging reflections in geothermal regions, like Hverahlíð, where a dense seismic array recorded a number of local microearthquakes for cross-correlation. LÄS MER

  7. 20. Investigation Of Source Parameters Of Earthquakes In Northern Sweden

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :María González-Caneda; [2019]
    Nyckelord :spectral analysis; earthquake source observations; ω-2 source model; moment magnitude; local magnitude; Northern Sweden seismicity.;

    Sammanfattning : By studying the frequency domain of seismic signals generated by earthquakes, the source parameters can be recovered, i.e., the seismic moment (M0) and the stress drop (Δσ). LÄS MER