Sökning: "Blötberget"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet Blötberget.

  1. 1. Developing data processing program for a new radio magnetotelluric (RMT) instrument

    Kandidat-uppsats, Uppsala universitet/Geofysik

    Författare :Elis Uebel; [2022]
    Nyckelord :RMT radio magnetotellurics matlab GUI;

    Sammanfattning : The radio magnetotellucic (RMT) method originates from (Tikhonov, 1950) and (Cagniard,1953) who discovered the possibility to estimate resistivity in the Earth’s subsurface using naturally occurring telluric currents. This through measuring the surface impedance of electromagnetic waves. LÄS MER

  3. 2. 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

  4. 3. Characterizing magnetic susceptibility and remanent magnetization of magnetite and hematite rich drill-core samples at Blötberget

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Andreas Bjork; [2018]
    Nyckelord :Verwey; Morin; Curie; Néel; magnetite; hematite; alteration; iron-ore; quality control; kappabridge; hysteresis; susceptibility; anisotropy; Verwey; Morin; Curie; Néel; magnetit; hematit; oxidation; järnmalm; kvalitetskontroll; kappabridge; hysteresis; susceptibilitet; anisotropi;

    Sammanfattning : Laboratory magnetic measurements are used to develop a methodology to characterize the Kiruna-type Rare Earth Elements (REE) bearing apatite iron-oxide deposits at Blötberget in central Sweden. This high-grade ore deposit is known to have sharp boundaries between lens shaped main ore bodies of magnetite-rich ore, and a complex hematite-rich ore associated with pegmatites and skarn formation. LÄS MER

  5. 4. Downhole Physical Property Logging of the Blötberget Iron Deposit, Bergslagen, Sweden

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Philip Johansson; [2017]
    Nyckelord :Borehole logging; resistivity logging; magnetic susceptibility; magnetite; Bergslagen; Borrhålsloggning; geofysik; apatitjärnmalm; Bergslagen;

    Sammanfattning : Geophysical methods are frequently applied in conjunction with exploration efforts to increase the understanding of the surveyed area. Their purpose is to determine the nature of the geophysical response of the subsurface, which can reveal the lithological and structural character. LÄS MER

  7. 5. Gravity and Magnetic Survey, Modelling and Interpretation in the Blötberget Iron-Oxide Mining Area, Bergslagen, Sweden

    Master-uppsats, Uppsala universitet/Geofysik

    Författare :Ezra Yehuwalashet; [2016]
    Nyckelord :Blötberget; gravity; Bouguer; magnetic; 3D inversion modelling; surface geology; ore deposit; Blötberget; gravimetri; Bouguer; magnetometri; 3D-modell; ytgeologi; malmfyndighet;

    Sammanfattning : The Blötberget mining area, the focus of this MSc project, is located about 230 km northwest ofStockholm and 12 km southwest of the city of Ludvika (central Sweden). The mining area has beenknown since 1600 for its various types of mineralization particularly iron-oxide deposits (magnetite andhematite) with the mining commenced in 1944. LÄS MER