Essays about: "spårelement"

Showing result 1 - 5 of 12 essays containing the word spårelement.

  1. 1. Major and trace element geochemical analysis of norites in the Hakefjorden Complex to constrain magma source and magma plumbing systems

    University essay from Lunds universitet/Geologiska institutionen

    Author : Aodhan Barrett; [2020]
    Keywords : Anorthosite; norite; Plagioclase; Hakefjorden Complex; Sweden; Trace Elements; Geochemistry; Magma Origin; Earth and Environmental Sciences;

    Abstract : Major and trace element data taken from plagioclase crystals from anorthosites and related rock units in the Hakefjorden Complex located off the west coast of Sweden were investigated for the purposes of constraining magma chamber processes and the source of the magma. Although the anorthosite units were completely homogenous in regards to its chemistry, the plagioclase in the associated norite and ilmenite-leuconorite units showed substantial variation. READ MORE

  2. 2. Genetic relationships and origin of the Ädelfors gold deposits in Southeastern Sweden

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

    Author : Tobias Wiberg Steen; [2018]
    Keywords : Ädelfors; sulfur isotope ratio; pyrite chemistry; orogenic gold; gold; gold quartz vein; trace elements; gold mine; banded iron formation; SEM-EDS analysis; gold silver ratio; Ädelfors; svavelisotoper; pyritkemi; orogent guld; guldrik kvartsåder; guld; guldfyndighet; spårelement; bandad järnmalm; SEM-EDS analys; guld silver förhållande;

    Abstract : Ädelfors is situated ca 17 km east of Vetlanda, Jönköping County, in the N-S striking Trans-scandinavian igneous belt and is a part of the NE-SW striking 1.83-1.82 Ga Oskarshamn-Jönköping belt emplaced during a continental subduction towards the Svecofennian continental margin. The continental arc hosts the 1. READ MORE

  3. 3. Geochemistry of stream plants and its statistical relations to soil- and bedrock geology, slope directions and till geochemistry : a GIS-analysis of small catchments in northern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Harry Eriksson; [2017]
    Keywords : Biogeochemistry; GIS; Physical Geography and Ecosystem analysis; Geographical Information Systems; Geochemistry; Catchments; Drainage areas; Earth and Environmental Sciences;

    Abstract : Subaquatic mosses and stream plants have been recognized as suitable sample media for detection of geochemical variations in their surrounding environments. These plants were originally used in search for mineral deposits but later on also for detection of environmental pollution. READ MORE

  4. 4. Compositional Systematics of Sphalerites from Western Bergslagen, Sweden

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Aristeidis Kritikos; [2016]
    Keywords : Western Bergslagen; sphalerite; critical elements; trace elements; substitution mechanisms; EMPA; LA-ICP-MS; Västra Bergslagen; zinkblände; kritiska metaller; spårelement; substitutionsmekanismer; EMPA; LA-ICP-MS;

    Abstract : Sphalerite is, apart from being the main global source of zinc (Zn), also one of the main source for the critical elements indium (In), gallium (Ga) and germanium (Ge), which can be extracted as by-products during Zn mining. In the westernmost part of the Palaeoproterozoic Bergslagen ore province, Sweden, In-anomalies have been reported from sulphide mineralizations. READ MORE

  5. 5. Using Fe-Ti oxides and trace element analysis to determine crystallization sequence of an anorthosite-norite intrusion, Älgön SW Sweden.

    University essay from Lunds universitet/Geologiska institutionen

    Author : Sara Kullberg; [2015]
    Keywords : magma origin; AFC-model; ilmenite; ilmenite-rich leuconorite; anorthosite-norite; Earth and Environmental Sciences;

    Abstract : På Älgön, SV Sverige, finns en anortosit-norit intrusion tillhörande Hakefjordenkomplexet. Det finns dessutom två tillhörande enheter; en marginell monzonorit och en centralt belägen ilmenitberikad norit (IRL). I den ilmenitberikade noriten finns även olika sorters aggregat av Fe-Ti oxider. READ MORE