Sökning: "Biotite"
Visar resultat 1 - 5 av 44 avhandlingar innehållade ordet Biotite.
1. Sorption of Cs, Ba, Co, and Eu onto biotite: experiments and modelling
Sammanfattning : 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. LÄS MER
2. Microbe-mineral interactions in soil : Investigation of biogenic chelators, microenvironments and weathering processes
Sammanfattning : 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. LÄS MER
3. A theoretical and experimental study on tschermak substitution in the assemblage muscovite+biotite+chlorite+quartz
Sammanfattning : .... LÄS MER
4. Dissolution Kinetics and Alteration Products of Micas and Epidote in Acidic Solutions at Room Temperature
Sammanfattning : 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. LÄS MER
5. 40Ar/39Ar, AFT and (U-Th)/He thermochronologic implications for the low-temperature geological evolution in SE Sweden
Sammanfattning : 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. LÄS MER