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Wyświetlanie 1-2 z 2
Tytuł:
Local and exotic building and decorative stones in historical castles of SW Poland : a reconnaissance study
Autorzy:
Kryza, R.
Dziedzic, M.
Unterwurzacher, M.
Prell, M.
Pietrzykowska, K.
Strick, D.
Schumacher, V.
Wilhelm, D.
Powiązania:
https://bibliotekanauki.pl/articles/2066809.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
castles
Lower Silesia
SW Poland
building stone
decorative stone
architectural heritage
cultural heritage
zamek
Dolny Śląsk
Polska
kamień budowlany
kamień dekoracyjny
dziedzictwo architektoniczne
dziedzictwo kulturowe
Opis:
South-west Poland (Silesia) is the region of dramatic history which has left significant heritage, comprising, e.g., numerous historical castles. In this paper, we describe selected castles in Lower Silesia, with special attention given to the usage of exotic (imported) decorative stone materials traded across Europe in various historical periods. Out of the total number of c. 100 historical castles and palaces in SW Poland, only three of them, i.e. Czocha, Ksi¹¿ and Moszna, have preserved significant amount of the original stone decoration. In Czocha Castel, apart from local stones, we have identified, e.g.: red and white, and grey limestones (from Belgium, Germany or Italy). In Ksi¹¿ Castle, the interiors have a great variety of exotic stone materials: travertine, marbles and limestones, e.g. Rosso di Francia, and many others, mostly from France and Italy. In Moszna Castle, representative rooms are adorned with “marbles”: Rosso di Verona, Giallo di Verona, Giallo Siena, Rosso di Francia, and serpentinites and ophicalcites (from Austria and Italy). Most of the exotic stones in the three castles studied were imported at the turn of the 19th–20th centuries and in the early 20th century, when the castles were largely reconstructed and redecorated.
Źródło:
Przegląd Geologiczny; 2015, 63, 6; 332--344
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on magnetite and pyrite mineralization, and on their early Palaeozoic ocean-floor host-rocks from the Leszczyniec Unit (West Sudetes, Poland)
Autorzy:
Oberc-Dziedzic, T.
Mochnacka, K.
Mayer, W.
Pieczka, A.
Creaser, R. A.
Góralski, M.
Powiązania:
https://bibliotekanauki.pl/articles/191471.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
magnetite and pyrite mineralization
metabasites
ocean-floor metamorphism
paragonite
Leszczyniec Unit
Sudetes
Polska
Opis:
The Leszczyniec Unit extends along the eastern margin of the Karkonosze-Izera Massif. It comprises the Early Palaeozoic, MORB-like Leszczyniec complex composed of metabasites, metagranites and metasedi- ments. The metabasites host magnetite mineralization encountered in Jarkowice, whereas near Wieściszowice village the pyrite deposit occurs in metasediments and metabasites. The common feature of both sites is the almost complete absence of the accompanying ore minerals. Basing on petrographic, mineralogical, geochemical and microstructural studies, it was found that the metabasic rocks, which host magnetite mineralization, were lava flows, whereas the protoliths of pyrite-bearing schists were basic and acid tuffites accompanied by ocean-floor basalts. The igneous rocks from the Leszczyniec Unit were subjected to the ocean-floor metamorphism, whereas the accompanying sediments were altered by hydrothermal fluids enriched in sulphur ions, which reacted with iron derived from the sediment and promoted crystallization of pyrite. The sources of hydrothermal fluids were adjacent magmatic centres. The estimated age ~480 Ma for pyrite (Re-Os method) is similar to the previously known ~500 Ma age of metabasites (U-Pb, zircon method) from the Leszczyniec Unit, which establishes a temporal link between pyrite accumulation and the ocean-floor environment. The rocks of the Leszczyniec Unit, first altered by the ocean-floor metamorphism and the hydrothermal fluids, were subsequently subjected to the regional metamorphism at 360–340 Ma and the two-stage deformations of various intensities, followed by the third stage of deformations which caused the reorientation of the regional foliation. The zones of ductile and brittle deformations connected with the second deformation event host the accumulations of magnetite formed at the expense of Fe-bearing rock-forming minerals or from iron supplied from adjacent sources. In the pyrite-bearing schists, mineral assemblages formed during the hydrothermal alteration have been subjected to recrystallization and were included into domains defining foliation and lineation, which formed during the first stage of deformation. Pyrite crystals were affected by both deformation stages. At the end of the second stage, the invasion of fluids led to the dissolution of pyrite crystals and to the filling of cracks in pyrite crystals with chalcopyrite and tennantite. This process was followed by the formation of quartz veins with minor amounts of ore minerals.
Źródło:
Annales Societatis Geologorum Poloniae; 2011, 81, No 2; 133-160
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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