- Tytuł:
- Geochemistry, mineral chemistry and P-T evaluation of metasediments of Bahram-Gur complex, ES Sanandaj-Sirjan zone, Iran
- Autorzy:
-
Sadegh, Hadiseh Rahimi
Moeinzadeh, Hesam
Nakashima, Kazu - Powiązania:
- https://bibliotekanauki.pl/articles/127617.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polskie Towarzystwo Mineralogiczne
- Tematy:
-
Bahram-Gur area
Sanandaj-Sirjan Zone
metamorphic conditions
metasediments
geothermobarometry - Opis:
- The Bahram-Gur area in the southeastern part of the Sanandaj–Sirjan metamorphic zone, contains metabasites and metasediments. The metasedimentary rocks are mainly garnet schists and garnet-staurolite schists that were metamorphosed under amphibolite facies conditions. The rocks consist of garnet ± staurolite, biotite, muscovite, chlorite and quartz. The geochemistry of the Bahram-Gur metasediments classifies them as quartziferous sedimentary rocks. The protoliths of the metasedimentary rocks were close to greywackes from an ensialic arc basin depositional setting, with a source comprising mostly mixture of acid and intermediate magmatic rocks in the upper continental crust. The metamorphic conditions of formation of the Bahram-Gur metasedimentary are investigated by geothermobarometric methods. The results show that the metasedimentary rocks formed at temperatures of 600-750°C and pressures of 5-7.5 kbar.
- Źródło:
-
Mineralogia; 2019, 50, 1/4; 34-68
1899-8291
1899-8526 - Pojawia się w:
- Mineralogia
- Dostawca treści:
- Biblioteka Nauki
Artykuł