National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Fluid inclusion study of pegmatites from Vepice and Vlastějovice
Surmová, Petra ; Zachariáš, Jiří (advisor) ; Dolníček, Zdeněk (referee)
Fluid inclusions of pegmatites from two localities in the Moldanubina Zone were studied in order to constrain PT conditions of their crystallization and establish composition and properties of fluids associated with pegmatite formation. The first locality is Vepice near Tábor, second locality is Vlastějovice near Zruč nad Sázavou. Pegmatit of Vepice consists of irregular pockets in amphibole- biotic granite dark type to a porphyric syenodioritot Čertova břemene. Fluid inclusions have been studied in several cm large quartz crystals of miarolic cavities from the central zone pegmatites pockets within the central zone of the pegmatite pockets. The collected fluids are aqueous- type with a low salt content (usually in the range of 4-6 hm% NaClekv. Pegmatites in Vepice among the complex Y-REE-Nb-Ta-Ti pegmatites. In terms of PT conditions pegmatites belong to the classification of rare element pegmatite or miarolitic's pegmatites. The studied sample of Vlastějovice (skarn's body) represented a transition from quartz-feldspar pegmatite lithium zone to zone with predominance of quartz (quartz core). Only one sample was studied, which originated from the historical collections F. Čech (Čech, 1985). The sample is an exceptional presence of large quantities of the solid phase (up to 4-5 stages). Using Raman...
Aplication of magnetic susceptibility in study of soil pollution
Surmová, Petra ; Mihaljevič, Martin (advisor) ; Nováková, Tereza (referee)
The aim of this thesis is briefly summarize the application of magnetic susceptibility in study of soil pollution. The manuscript is based on scientific articles focusing on the above mentioned subject. In each chapter I deal with magnetic properties of rocks and minerals, in particular the magnetic susceptibility. Magnetic susceptibility in a weak magnetic field is one of the most important parameters, which indicates a change in the concentration of ferimagnetics in soils and sediments (Kapička et al., 2004). Main magnetic minerals are described with respect to their occurrence in soils and anthropogenic origin. Both field and laboratory instruments for the measurement of magnetic susceptibility are also described. In the final chapter I deal with two case studies, where magnetic susceptibility measurements were used in environmental study. I compare two different geographical areas in terms of pollution, relatively clean Krkonoše Mountains National Park and industrially polluted Upper Silesia. Keywords: antropogenic ferimagnetics, magnetic susceptibility, magnetic minerals

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