Sökning: "ore microscopy"

Visar resultat 16 - 20 av 27 uppsatser innehållade orden ore microscopy.

1. 16. Ore mineralogy and silver distribution at the Rävliden N volcanogenic massive sulphide deposit, Skellefte district, Sweden

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

   Författare :Simon Johansson; [2017]
   Nyckelord :Rävliden N; Boliden Mineral AB; Volcanogenic massive sulphide deposit; Ore mineralogy; Silver; Remobilisation;

   Sammanfattning : The Rävliden North deposit (Rävliden N) is a volcanogenic massive sulphide (VMS) deposit in the western part of the Skellefte district, northern Sweden. The district is one of Sweden’s major metallogenic provinces with a significant amount of VMS deposits. LÄS MER

3. 17. 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

4. 18. Mineral Chemistry and Parageneses of Oxyborates in Metamorphosed Fe-Mn Oxide Deposits

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Zacharias Enholm; [2016]
   Nyckelord :Oxyborates; in situ boron analysis; microchemical analysis; Raman analysis; Fe-Mn oxide deposits; Långban; Nordmark; Jakobsberg; Oxyborater; in situ boranalys; mikrokemisk analys; Ramananalys; Fe-Mn-oxidmalmer; Långban; Nordmark; Jakobsberg;

   Sammanfattning : Oxyborate minerals can represent the most important sink for boron in silica-undersaturated mineralised systems such as those of the Långban-type. Yet, their distribution, characteristics and parageneses are still not completely known. LÄS MER

5. 19. Copper minerals under the microscope

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Anna Hjeltström; [2015]
   Nyckelord :Copper; Minerals; Microscope;

   Sammanfattning : From many perspectives copper is a very important metal for the modern society. It can be found in everything from jewellery to electronics. For this reason it is very important for geologists to be able to develop efficient methods for identification, characterisation, extraction and processing of copper. LÄS MER

7. 20. Mineraliseringar utmed REE-linjen i sydvästra Bergslagen

   Kandidat-uppsats, Uppsala universitet/Berggrundsgeologi

   Författare :Henrik Linnros; [2014]
   Nyckelord :REE-mineraliseringar; REE-linjen; Bergslagen; Sulfidmikroskopering; SEM-EDS; ArcGIS;

   Sammanfattning : This paper briefly summarizes Bergslagen as a bedrock province in order to give background to the genesis and presence of REE-bearing minerals (short for Rare Earth Elements) in the region. These mineralizations mainly occur along the REE-line, a line aproximately a hundred kilometers in length between Norberg in the north and Nora in the south with a width of a few kilometers. LÄS MER