Search for dissertations about: "Biotite"

Showing result 1 - 5 of 43 swedish dissertations containing the word Biotite.

  2. 1. Sorption of Cs, Ba, Co, and Eu onto biotite: experiments and modelling

    Author : Pawan Kumar; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cs; Biotite; Ba; titration; Eu; Co; Surface Complexation; Sorption;

    Abstract : The sorption of 134Cs, 133Ba, 60Co and 152Eu, all at about [~10-8 M] onto biotite mineral was studied using the batch method with S: L = 1:50 at three different ionic strengths (0.001, 0.01 and 0.1M NaClO4) and five different pH (5,6,7,8,9) at 25°C for up to two months in an inert atmosphere glovebox. READ MORE

  4. 2. Microbe-mineral interactions in soil : Investigation of biogenic chelators, microenvironments and weathering processes

    Author : Engy Ahmed; Sara Holmström; Roger Finlay; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Podzol; Biotite; Apatite; Oligoclase; Microbial attachment; Siderophores; Soil microorganisms; geokemi; Geochemistry;

    Abstract : The interplay between geology and biology has shaped the Earth during billions of years. Microbe-mineral interactions are prime examples of this interplay and underscore the importance of microorganisms in making Earth a suitable environment for all forms of life. READ MORE

  5. 3. A theoretical and experimental study on tschermak substitution in the assemblage muscovite+biotite+chlorite+quartz

    Author : Madis Roots; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  6. 4. Dissolution Kinetics and Alteration Products of Micas and Epidote in Acidic Solutions at Room Temperature

    Author : Birgitta Estmark Kalinowski; Per Aagaard; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Mineralogy; Petrology and Geochemistry; mineralogi; petrologi och geokemi;

    Abstract : The reaction kinetics of the weathering of several phyllosilicates and one sorosilicate were stud ied experimentally. The alteration products were characterised by various methods in clud ing XRD, HRTEM, SEM, FTIR, NMR and Mössbauer spectroscopy. READ MORE

  7. 5. 40Ar/39Ar, AFT and (U-Th)/He thermochronologic implications for the low-temperature geological evolution in SE Sweden

    Author : Pia Söderlund; Berggrundsgeologi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 40Ar-39Ar; Fennoscandian Shield; U-Th He; AFT; geochronology; thermochronology; cooling; uplift;

    Abstract : The Oskarshamn and Forsmark areas in the Fennoscandian Shield, SE Sweden, have been chosen as potential sites for hosting highly radioactive nuclear waste. To evaluate their respective suitability, the geological history of the bedrock in these two areas has been investigated. This study has focused on the thermal evolution, from c. 500 °C to c. READ MORE