Essays about: "Magnetite oxidation"

Showing result 1 - 5 of 6 essays containing the words Magnetite oxidation.

1. 1. GEOCHEMICAL UNDERSTANDING OF VANADIUM IN MALMBERGET ORES (KIRUNA TYPE), NORTHERN SWEDEN

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Kabelo Kambai; [2021]
   Keywords : Vanadium; Malmberget; Kiruna Type;

   Abstract : The Norrbotten region is an important Swedish mining district with occurrence of several economic deposits and sub-economic deposits of apatite iron ores (Kiruna Type) and epigenetic Cu-Au ores. The apatite iron ores include the large Malmberget deposit mined by LKAB company as one of their world class underground mines. READ MORE

3. 2. Characterization of core-shell oxide nanoparticles

   University essay from SLU/Department of Molecular Sciences

   Author : Eline Goossens; [2018]
   Keywords : magnetic core-shell nanoparticles; characterization; iron oxide; silica;

   Abstract : The growing amount of applications of nanoparticles (NP) have led to concern for their possible harmful effect on human health and the leakage in the environment. Characterization and quantification of the content of NPs are of prime importance, especially methods to relate size, composition and morphology of the particles with the possibility of their detection and quantification. READ MORE

4. 3. Characterizing magnetic susceptibility and remanent magnetization of magnetite and hematite rich drill-core samples at Blötberget

   University essay from Uppsala universitet/Geofysik

   Author : Andreas Bjork; [2018]
   Keywords : Verwey; Morin; Curie; Néel; magnetite; hematite; alteration; iron-ore; quality control; kappabridge; hysteresis; susceptibility; anisotropy; Verwey; Morin; Curie; Néel; magnetit; hematit; oxidation; järnmalm; kvalitetskontroll; kappabridge; hysteresis; susceptibilitet; anisotropi;

   Abstract : Laboratory magnetic measurements are used to develop a methodology to characterize the Kiruna-type Rare Earth Elements (REE) bearing apatite iron-oxide deposits at Blötberget in central Sweden. This high-grade ore deposit is known to have sharp boundaries between lens shaped main ore bodies of magnetite-rich ore, and a complex hematite-rich ore associated with pegmatites and skarn formation. READ MORE

5. 4. A lithogeochemical study of northern Sweden and the Kiruna and Malmberget iron-apatite ore deposits

   University essay from Uppsala universitet/Berggrundsgeologi

   Author : Jon Lundh; [2014]
   Keywords : REE; trace elements; iron-apatite ore deposit; suite; oxygen isotopes; magnetite; Kiruna; Malmberget; Haparanda; Edefors; Perthite-monzonite;

   Abstract : The iron apatite mineralizations of northern Sweden are mainly situated in supracrustal rocks and are thought to have formed during approximately the same time as the major plutonic suites in northern Sweden. In this thesis the Malmberget iron apatite ore deposit have been compared to the Kiruna iron apatite ore deposit to see whether the role of hydrothermal processes are different between the two ore districts. READ MORE

6. 5. Spinel group minerals in carbonaceous and ordinary chondrites

   University essay from Lunds universitet/Geologiska institutionen

   Author : My Riebe; [2009]
   Keywords : spinel group minerals; carbonaceous chondrites; ordinary chondrites; spinellgruppmineral; kolkondriter; ordinära kondriter; Earth and Environmental Sciences;

   Abstract : Meteorites are easily altered in the oxygen-rich environment on the Earth surface. Fossil meteorites are thus uncommon and in the ones, which are found, almost all minerals are secondary. However, the spinel group mineral chromite is resistant to alteration and has successfully been used as a proxy for ordinary chondrites in sediment. READ MORE