Sökning: "goethite"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet goethite.

  1. 1. How is carbon stored in boreal forest soils? - A method development which investigates at what protein concentration ferrihydrite and goethite are saturated.

    Kandidat-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Louise Berild; [2023]
    Nyckelord :Soil nitrogen; soil carbon; boreal forest; ectomycorrhizal fungi; decomposition; adsorption; ferrihydrite; goethite; Earth and Environmental Sciences;

    Sammanfattning : Boreal forests store the majority of their carbon in the soil and play an important role in the global carbon cycle. However, the mechanisms that control carbon storage in boreal soils are not well understood. LÄS MER

  3. 2. Spatial analysis of arsenic and fluoride mobilization in groundwater around Mount Meru, northern Tanzania

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

    Författare :Henriette Nishimwe; [2023]
    Nyckelord :Arsenic; Fluoride; Groundwater; Mobilization; Mount Meru; Geochemical and Spatial Modelling; Arsenic; Fluoride; Groundwater; Mobilization; Mount Meru; Geochemical and Spatial Modelling;

    Sammanfattning : In Tanzania, approximately 76% of the drinking water supplies is dependent on groundwater sources. However, the groundwater in north Tanzania is susceptible to contamination by arsenic and fluoride. This study examines the spatial analysis of arsenic and fluoride mobilization in groundwater around Mount Meru, located in northern Tanzania. LÄS MER

  4. 3. Geochemical and Mineralogical Comparison of XRT-XRF Scanning Technology Versus Traditional Analysis of Drill Core from the Assarel Porphyry Copper-Gold Deposit (Panagyurishte District, Bulgaria)

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Diego Delgado Yanez; [2020]
    Nyckelord :Assarel porphyry copper; GeoCore X10; Sustainable mining; XRT XRF; mineral characterization; geochemical characterization; X-MINE Project;

    Sammanfattning : Ongoing, environmental and economic matters related to mining sustainability and its impacts are leading to the search for new ways to asses and extract commodities more efficiently. A key aspect in the shift to more sustainable mining is the rapid, digital characterization of orebody mineralogy and geochemistry to help optimize the extractive process. LÄS MER

  5. 4. Sorption of PFOS to different solid components as a function of aqueous chemistry

    Master-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Jean Noël UWAYEZU; [2018]
    Nyckelord :;

    Sammanfattning : Knowledge of fate and transport of chemical contaminants in the environment is essential for reducing their adverse effects to humans and wildlife. Surface and ground waters serve as drinking water which helps to sustain life. LÄS MER

  7. 5. Karakteristika og identifikation af okker - samt dets anvendelse som pigment i ældre skandinavisk helle- og kalkmaleri

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Ingrid Søgaard; [2016-06-20]
    Nyckelord :hematite; goethite; red earth; crystallization; polarization light microscopy; SEM-EDX; ATR-FTIR;

    Sammanfattning : This thesis focuses on the material referred to as ochre. The aim of the project is to present the composition and formation of ochres and the analytical methods that can be used to identify them. Contextual examples of how it has been used as a pigment are introduced. LÄS MER