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Browsing by Author "Faehnrich, Karol"

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    Item type:Thesis, Access status: Restricted ,
    Deformations in metasediments, Pinkie Unit, Prins Karls Forland, Svalbard
    (Data obrony: 2016-01-20) Faehnrich, Karol
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    This study is focused on deformations recorded in metasediments comprising Pinkie unit, which outcrops on Prins Karls Forland island (Svalbard archipelago, Arctic). The primary aim of this work is analysis of deformations and construction of geological model for the studied area, which will in turn help to identify methods and strategies for further studies. This is a part of large international project addressing questions regarding the origin of the Pinkie unit, its tectonometamorphic evolution and age. The Pinkie unit might have recorded an important event in geotectonic evolution of Svalbard and thus Arctic region. To date, the litostratigraphic position of the Pinkie unit and its relation to the country rocks is uncertain. Sampling and field measurements took place during AGH geological polar expedition to Svalbard in July 2015. Thin sections for petrographic microstructural analysis were prepared from oriented samples. Samples represent both the Pinkie unit and surrounding Grampian unit.
  • thumbnail.journal.alt
    Item type:Thesis, Access status: Restricted ,
    How fluids infiltrate through fractures and change metamorphic rocks - a case study from northern Spitsbergen
    (Data obrony: 2017-07-10) Faehnrich, Karol
    Wydział Geologii, Geofizyki i Ochrony Środowiska
    Metasomatism is a process that involves changes in mineralogical and chemical composition of rocks or their portions due to interaction with fluids. In metasediments from northern Spistbergen clear zonation of metasomatic changes occur. Biotite break downs to chlorite, K-feldspar, titanite and/or rutile. Different mass balance calculations were applied in order to examine element redistribution during chloritization reaction. Textural evidence point out to isovolumetric replacement with H2O, FeO and MgO introduced to the system and K2O and TiO2 removed. Differences in calculated chloritization reactions equations suggest fluid heterogeneity on micro scale and control of local chemical composition on the progress of reaction and final product phases.
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    How fluids infiltrate through fractures and change metamorphic rocks - a case study from northern Spitsbergen
    (Wydawnictwa AGH, 2016) Faehnrich, Karol; Kośmińska, Karolina; Majka, Jarosław ; Dwornik, Maciej
    Metasomatism is a process leading to changes in the chemical composition of a rock or its portion. It involves introduction or removal of chemical components due to the interaction of the rock with aqueous fluid (Zharikov et al. 2007).