Sökning: "geophysical investigation"

Visar resultat 1 - 5 av 34 uppsatser innehållade orden geophysical investigation.

  1. 1. A Geophysical Survey of Northern Utö

    Master-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :Nicole Flanders; [2023]
    Nyckelord :;

    Sammanfattning : A geophysical investigation on the northern part of Utö was carried out between 2020 and 2021 to asses the extent of the iron ore (BIFs) and the iron bearing sulfides that have been surveyed and mined in the past. The survey using analog field equipment combined magnetometry, gravimetry, susceptibility, leveling, density, and thin-section microscopy. LÄS MER

  3. 2. Enhancing Geophysical Applications with Electrical Resistivity Tomography Inversion : Uncovering the mysteries that lies beneath us

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Anton Morian; [2023]
    Nyckelord :Resistivity inversion; Filtering; 3D visualisation;

    Sammanfattning : Geophysical methods have been widely used to investigate the subsurface in various ap-plications, such as mineral exploration, geotechnical and environmental studies. Among these methods, electrical resistivity tomography (ERT) has gained popularity due to its non-invasive and high-resolution capability in mapping subsurface resistivity variations. LÄS MER

  4. 3. Integration of geology with geophysics : Case studies from Svalbard

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Sofia Rylander; Anna Sterley; [2022]
    Nyckelord :Gravity Measurements; Magnetic Measurements; Anomalies; Seismic; Fault Zones; Svalbard;

    Sammanfattning : This is a study where new and old geophysical data together with information found in literature has been integrated to get a better understanding of the geological evolution of Svalbard. The purpose of the study is to acquire and integrate different geophysical data over the Central Spitsbergen Basin (CSB) and across the Billefjorden Fault Zone (BFZ). LÄS MER

  5. 4. Tunnel Seismic Prediction in Stockholm Bypass

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Matilda Wessén; Janita Österberg; [2021]
    Nyckelord :Tunnel Seismic Prediction; TSP; Seismic waves; Stockholm Bypass; Geological mapping; Measurement While Drilling; Tunnel Seismic Prediction; TSP; Seismiska vågor; Förbifart Stockholm; Bergkartering; Measurement While Drilling;

    Sammanfattning : Tunnel Seismic Prediction (TSP) is a geophysical investigation method used to predict the rock conditions ahead of the tunnel face. The method has been used in different types of rock and rock conditions. LÄS MER

  7. 5. Inversion of SkyTEM Data Based on Geophysical Logging Results for Groundwater Exploration in Örebro, Sweden

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Geovetenskap och miljöteknik

    Författare :Andrée Kindlund; [2021]
    Nyckelord :SkyTEM; hydrogeophysics; geophysical logging; A priori; groundwater exploration;

    Sammanfattning : Declining groundwater tables threatens several municipalities in Sweden which drinking water is collected from. To ensure a sound drinking water supply, the Geological Survey of Sweden has initiated a groundwater exploration plan. LÄS MER