Essays about: "Sr Ca"

Showing result 6 - 10 of 17 essays containing the words Sr Ca.

  1. 6. Rb-Sr sphalerite data and implications for the source and timing of Pb-Zn deposits at the Caledonian margin in Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Alfred Larsson; [2018]
    Keywords : Laisvall; Granberget; geochronology; sphalerite; ore; Rb-Sr; Earth and Environmental Sciences;

    Abstract : The eastern Caledonian erosional front hosts the world-class Pb-Zn deposit at Laisvall (64 Mt mined) and Granberget mineralization, northern Sweden, along with several other smaller, related types of deposits consisting of impregnation mineralization of galena and sphalerite in clastic host rocks. Previous work have discussed the nature of the ore-forming processes and constraints for the timing of the mineralization, however, the mechanisms are still not fully understood and previous age determinations are ambiguous. READ MORE

  3. 7. Pretreatment Methods for Manganese Containing Anode Sludge

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

    Author : Johan Stenman; [2017]
    Keywords : Manganese; Zinc; Lead; Strontium; Reduction; Anode; Sludge; Slime; Metallurgy; Pyrometallurgy; Chamber; Rotary; Furnace; Agglomeration;

    Abstract : This master thesis work examines whether it is possible to separate lead from an electrolytic sludge rich in manganese using pyrometallurgical treatment, and also attempts to determine the optimum process parameters for such a treatment. It also includes a theoretical study of the possible applications for lead and manganese, as well as thermodynamic calculations predicting the behaviour of the material at increasing temperatures. READ MORE

  4. 8. 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

  5. 9. Influence of Sample Preparation on Portable XRF-analyses of Aeolian Sediments: a Case Study

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Markus L. Fiola; [2017]
    Keywords : portable XRF; loess; sediment; bärbar XRF; lössjord; sediment;

    Abstract : The geochemical composition of aeolian sediments like windblown dust particles is of major importance for the exploration of dust origin and weathering conditions. This allows for the reconstruction of dust transport pathways and thus wind directions and palaeoclimate conditions. READ MORE

  6. 10. Influence of Electron-Phonon Coupling Strength on the Superconductivity in APt3P (A = Sr, Ca, La) Compounds

    University essay from Uppsala universitet/Materialteori

    Author : Eiakihonroeda Morooka; [2015]
    Keywords : Superconductivity; APt3P;

    Abstract : .... READ MORE