- Tytuł:
- Deformation structures in the gneissic exotic pebbles from the area of Wołosate (Cisna sandstone, Dukla tectonic unit, Outer Carpathians, Poland)
- Autorzy:
-
Kania, M.
Wolska, A. - Powiązania:
- https://bibliotekanauki.pl/articles/191383.pdf
- Data publikacji:
- 2009
- Wydawca:
- Polskie Towarzystwo Geologiczne
- Tematy:
-
gneissic exotic pebbles
foliation
metamorphism
mica fish
Bieszczady Mts.
Outer Carpathians
Polska - Opis:
- Gneissic exotic pebbles from the Cisna beds (Dukla tectonic unit) in the region of Wołosate (Biesz- czady Mts., Eastern Carpathians) were investigated. These exotic pebbles are from 9.5 to 13 cm in size. Basing on the structural features, the following groups of exotic pebbles were distinguished: granitic gneisses, laminated gneisses, flaser gneisses and mylonitic gneisses. Granite - granodiorite protolith was deformed in the shear zone; strain partitioning was probably an important process during deformation. The observed structures allow to determine the temperature of metamorphism as 500-550°C. The lower limit of pressure was determined basing on phengite geobarometer as 5 kbar. The nature and localization of the source area can be similar to the Bretila sequence from the Romanian Eastern Carpathians.
- Źródło:
-
Annales Societatis Geologorum Poloniae; 2009, 79, No 2; 41-52
0208-9068 - Pojawia się w:
- Annales Societatis Geologorum Poloniae
- Dostawca treści:
- Biblioteka Nauki
Artykuł