http://hdl.handle.net/20.500.12128/13650
Tytuł: | Orthorhombic 11C pyrrhotite from Michałkowa, Góry Sowie Block, The Sudetes, Poland - preliminary report |
Autor: | Rybicki, Maciej Krzykawski, Tomasz |
Słowa kluczowe: | orthorhombic pyrrhotite; Polish Sudetes; Góry Sowie Block |
Data wydania: | 2014 |
Źródło: | Contemporary Trends in Geoscience, Vol. 3, iss. 1 (2014), s. 51-58 |
Abstrakt: | This study provides the preliminary report about first occurrence of orthorhombic 11C pyrrhotite (Fe (1-x) S) from the Sudetes, Poland. Samples of pyrrhotite-containing two-pyroxene gabbro were found in a classic pegmatite locality in Michałkowa near Walim in the Góry Sowie Block. Based on microscopic methods, pyrrhotite is associated with pentlandite, chalcopyrite, chromite, ilmenite, gersdorffite, magnetite, biotite, magnesio-hornblende, clinochlore, lizardite and talc. X-Ray diffraction (XRD) indicate that pyrrhotite has orthorhombic 11C structure and it is characterized by: a = 3.433(9) Å, b = 5.99(2) Å, c = 5.7432(5) Å, β = 90º and d 102 = 2.06906 Å. Mössbauer studies confirmed the XRD data. Pyrrhotite has three sextets with hyperfine parameter values 30.8 T for sextet A, 27.9 T and 25.8 T for sextets B and C respectively, indicating orthorhombic structure, the composition near Fe 10 S 11 and x = 0.0909. |
URI: | http://hdl.handle.net/20.500.12128/13650 |
DOI: | 10.2478/ctg-2014-0022 |
ISSN: | 2084-5707 2299-8179 |
Pojawia się w kolekcji: | Artykuły (WNP) |
Plik | Opis | Rozmiar | Format | |
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Rybicki_Orthorhombic_11C_pyrrhotite.pdf | 1,14 MB | Adobe PDF | Przejrzyj / Otwórz |
Uznanie autorstwa - użycie niekomercyjne, bez utworów zależnych 3.0 Polska Creative Commons