Sökning: "magnetit"

Visar resultat 16 - 20 av 45 uppsatser innehållade ordet magnetit.

  1. 16. To Make Iron of Iron : A Comprehensive Analytical Study of Spade Shaped Iron Bars

    Master-uppsats, Stockholms universitet/Arkeologiska forskningslaboratoriet

    Författare :Nickolas Pappas Adlreburg; [2017]
    Nyckelord :Archaeological Science; Archaeometallurgy; Spade Shaped Iron Bars; X-Ray Fluorescence XRF ; Scanning Electron Microscopy SEM ; Metallography; Swedish Archaeology; Archaeology in Norrland; Scandinavian Iron Age; Nordic Iron Age; Roman Iron Age; Migration Period; Vendel Period; Prehistoric Metallurgy; Slag; Iron Bar; Currency Bar; Bloomery; Bloom Iron; Bog Iron; Limonite; Mineral Iron Ores; Hematite; Magnetite Phosphoric Iron Steel; Prehistoric Steel; Ferrite; Pearlite; Nickel; Cobalt; Phosphorus; Arsenic; Magnesium; Sulfur; Manganese; Norrland; Middle Norrland; Uppland; Gästrikland; Hälsingland; Medelpad; Jämtland; Södermanland; Helgö; Torsåker; Gåcksätter; Alborga; Offerdal; Selånger; Villberga; Arbrå; Laborativ Arkeologi; Arkeometallurgi; Spadformiga Ämnesjärn; Röntgenfluorescens XRF ; Svepelektronmikroskop SEM ; Metallografi; Svensk Arkeologi; Norrländsk Arkeologi; Förnnordisk Arkeologi; Skandinavisk Järnålder; Nordisk Järnålder; Fornnordisk Järnålder; Romersk Järnålder; Folkvandringstiden; Vendeltiden; Forhistorisk Metallurgi; Slaget; Ämnesjärn; Blästerugn; Blästa; Myrmalm; Sjömalm; Limonit; Bergmalm; Hematit; Magnetit; Fosforisk Järn Stål; Förhistorisk Stål; Ferrit; Pearlit; Nickel; Kobolt; Fosfor; Arsen; Magnesium; Svavel; Mangan; Norrland; Mellannorrland; Uppland; Gästrikland; Hälsingland; Medelpad; Jämtland; Södermanland; Helgö; Torsåker; Gåcksätter; Alborga; Offerdal; Selånger; Villberga; Arbrå;

    Sammanfattning : This thesis aims to provide adequate analytical information on the spade shaped iron bars of Norrland and central Sweden. While their significance has been thoroughly debated for decades, analytical research on them has been confined to cases of single artefacts or theoretical interpretations of their value, meaning and origin. LÄS MER

  3. 17. 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

  4. 18. X-ray diffraction studies on complex metal oxides

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Albin Linder; [2015]
    Nyckelord :reciprocal space; compass; x-ray diffraction; XRD; magnetite; Physics and Astronomy;

    Sammanfattning : The ambition of this project is to assist in the pursuance of understanding the metal to insulator transition found in magnetite at ~120 K. The transition is itself very complex and links together the charge order, orbital order and lattice distortion of magnetite with its magnetic properties. LÄS MER

  5. 19. Mineralogical Study of Manganese Bearing Skarn Minerals and Manganese Content in Magnetite in the Dannemora Skarn Iron Ore Deposit

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Franz Åberg; [2015]
    Nyckelord :Dannemora; ore; iron skarn; manganese; magnetite; skarn minerals; Dannemora; malm; järnskarn; mangan; magnetit; skarnmineral;

    Sammanfattning : The Dannemora skarn iron ore deposit is located in the northeastern part of Bergslagen. The deposit has been mined from the 1400’s and stopped in 1992, the mine was reopen in 2012 and it will close in 2015. The Dannemora deposit is hosted by 1.9 Ga old sedimentary and volcanic rocks. LÄS MER

  7. 20. Alteration of the Bjursås Ore Field, Oxberg, Bergslagen District, Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Tomas Lindeberg; [2015]
    Nyckelord :Bergslagen; Bjursås; Oxberg; alteration; base metals; VHMS; Large box plot; chemostratigraphy; Bergslagen; Bjursås; Oxberg; omvandling; basmetaller; VHMS; Large låddiagram; kemistratigrafiskt-tvärsnitt; vektorer;

    Sammanfattning : The Bjursås ore field is located within the Bergslagen domain of central Sweden just northwest of the town of Falun. The field hosts small scale mines such as the 17th century Floberg copper mine and has been the focus of mineral exploration on several occasions during the 20th and early 21th century, with no major economic deposits being uncovered as of yet. LÄS MER