Sökning: "ore texture"

Visar resultat 6 - 10 av 10 uppsatser innehållade orden ore texture.

  1. 6. Classification of Drill Core Textures for Process Simulation in Geometallurgy : Aitik Mine, Sweden

    Master-uppsats, Luleå tekniska universitet/Mineralteknik och metallurgi

    Författare :Glacialle Tiu; [2017]
    Nyckelord :ore texture; texture classification; Machine Learning; drill core photography; scanning electron microscope; X-ray microtomography; mineral mapping; stereology;

    Sammanfattning : This thesis study employs textural classification techniques applied to four different data groups: (1) visible light photography, (2) high-resolution drill core line scan imaging (3) scanning electron microscopy backscattered electron (SEM-BSE) images, and (4) 3D data from X-ray microtomography (μXCT). Eleven textural classes from Aitik ores were identified and characterized. LÄS MER

  3. 7. Deformation, metamorphism and remobilisation in the Hornkullen polymetallic deposit, western Bergslagen, Sweden

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Stefan Andersson; [2014]
    Nyckelord :ore genesis; Bergslagen; deformation; remobilisation; metamorphism; geothermobarometry; malmbildning; Bergslagen; deformation; ommobilisering; metamorfos; geotermobarometri;

    Sammanfattning : The polymetallic Hornkullen deposit is situated in the western part of the Bergslagen ore province, Sweden. It is hosted by an inlier of approximately 1.90-1.88 Ga Svecofennian volcanic and sedimentary metasupracrustal rocks enclosed in a significantly younger, c. LÄS MER

  4. 8. Landvinning : scenarier för efterbehandling och gestaltning av Aitikgruvan, Gällivare

    L3-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Simon Fogelqvist; [2008]
    Nyckelord :gruvor; gruvverksamhet; återställa; återvinna; efterbehandla; landskap; gestaltning;

    Sammanfattning : Open pit mining creates huge amounts of tailings and waste rock deposits. Due to it's content of sulphide minerals, predominantly pyrite (FeS2), there is a risk of oxidation and formation of acid water containing heavy metals, known as Acid Rock Drainage (ARD). To prevent the process of oxidation, the tailings and waste rock have to be reclaimed. LÄS MER

  5. 9. Klassifikation av leptiter i malmstråket mellan Ö. Silvberg och Vallberget, Dalarna

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Carina Hellström; [1986]
    Nyckelord :geografi; geologi; leptit; Malmstråket; ö. Silvberg; Vallberget; Dalarna; Earth and Environmental Sciences;

    Sammanfattning : Ö. Silvberg och Vallberget are two sulphide-ore mines immediately to the west of the town Säter in Dalarna. They are found in a NE-SW trending orebearing zone in the Leptite-formation. An area extending about 6 km in the NE-SW and 2 km in the perpendicular direction has been mapped. LÄS MER

  7. 10. En petrografisk och mineralogisk studie av en komplex gång bestående av metadiabas och kvartskeratofyr i Kiirunavaaragruvan

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Eva Öhman; [1986]
    Nyckelord :geografi; geologi; petrografi; mineralogi; metadiabas; kvartskeratofyr; Kiirunavaaragruvan; Earth and Environmental Sciences;

    Sammanfattning : Summary: The purpose of this paper is to give a petrographic and mineralogic description of a dyke complex, consisting of a metadiabase and a quartz keratophyre. The type locality is the northern part of the Kiirunavaara apatite-rich iron ore, situated in northern Sweden. LÄS MER