Sökning: "rock samples"

Visar resultat 1 - 5 av 163 uppsatser innehållade orden rock samples.

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. A geological investigation on bedrock suitability for mineral carbonation conducted in the south central part of Sweden

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Edvard Pearson; [2023]
   Nyckelord :Mineral carbonation; geological investigation; Åsensbruk; Falun; Grums; Öje; Skutskär;

   Sammanfattning : Increasing global temperatures due to anthropogenic emissions of greenhouse gases is one of our times most dire and urgent challenges to overcome if we are to achieve a sustainable healthy planet. The primary way of accomplishing this is by reducing the amount of released greenhouse gases. LÄS MER

4. 3. Utilizing wood ash to stimulate algal growth in mine waters from northern Sweden

   Master-uppsats, Luleå tekniska universitet/Geovetenskap och miljöteknik

   Författare :Katelyn Murphy; [2023]
   Nyckelord :acid rock drainage; acid mine drainage; controlled eutrophication;

   Sammanfattning : Acid rock drainage (ARD), caused by the oxidation of sulphide bearing minerals, continues to be an environmental impact of both closed and operational mines, leading to waters with low pH values and high metal concentrations (Park et al., 2019). LÄS MER

5. 4. Investigating the potential of systematic optical petrography in a geometallurgical context : A case study on boulder characterization from Rajapalot property, Finland

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Författare :Annie Björk; [2023]
   Nyckelord :Petrography; optical microscopy; scanning electron microscopy; geometallurgy; mining value chain; Peräpohja belt;

   Sammanfattning : Geometallurgy describes a holistic approach to mining (integrating geological, metallurgical, geotechnical, environmental, and more parameters) with the goal to improve the efficiency and sustainability of a mining operation. The potential of systematic optical petrography in a geometallurgical context was investigated in this study, as well as how petrography may be useful across disciplines in several blocks of the mining value chain. LÄS MER

7. 5. A Petrographic and Paragenetic Characterization of the Ertelien Ni-Cu Deposit (Norway)

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Alena Niarezka; [2023]
   Nyckelord :Ertelien Ni-Cu deposit; ore geology; enrichment processes; nickel; cobalt; copper; optical microscopy; electron probe micro-analysis; critical metals; Ertelien Ni-Cu fyndighet; malmgeologi; anrikningsprocesser; nickel; kobolt; koppar; optisk mikroskopi; elektronsondsmikroanalys; kritiska metaller;

   Sammanfattning : The escalating demand for metals driven by advancements in renewable energy technologies and hightech products has underscored the significance of understanding and characterizing ore deposits. This study focuses on the Ertelien Ni-Cu deposit in Norway, a region rich in nickel, cobalt, and copper resources—essential components for the transition to a sustainable energy future. LÄS MER