- Tytuł:
- Orthorhombic 11C pyrrhotite from Michałkowa, Góry Sowie Block, The Sudetes, Poland - preliminary report
- Autorzy:
-
Rybicki, M.
Krzykawski, T. - Powiązania:
- https://bibliotekanauki.pl/articles/100784.pdf
- Data publikacji:
- 2014
- Wydawca:
- Uniwersytet Śląski. Wydział Nauk o Ziemi
- Tematy:
-
Sudety
Góry Sowie
Polska
orthorhombic pyrrhotite
Polish Sudetes
Góry Sowie Block - Opis:
- 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, magnesiohornblende, 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 d102 = 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 Fe10S11 and x = 0.0909.
- Źródło:
-
Contemporary Trends in Geoscience; 2014, 3, 1; 51-58
2299-8179 - Pojawia się w:
- Contemporary Trends in Geoscience
- Dostawca treści:
- Biblioteka Nauki
Artykuł