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

Identyfikatory

DOI

10.2478/mipo-2019-0003

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Bahram-Gur area; Sanandaj-Sirjan Zone; metamorphic conditions; metasediments; geothermobarometry

• Wydawca: Mineralogical Society of Poland
• Czasopismo: Mineralogia
• Rocznik: 2019
• Tom: Vol. 50, iss. 1/4
• Strony: 34--68
• Opis fizyczny: Bibliogr. 65 poz., rys., tab., wykr.

Twórcy

autor

Sadegh Hadiseh Rahimi

• Department of Geology, College of Sciences, Shahid Bahonar University, Kerman, 76176, Iran

autor

Moeinzadeh Hesam

• Department of Geology, College of Sciences, Shahid Bahonar University, Kerman, 76176, Iran

autor

Nakashima Kazu

• Earth and Environmental Sciences Department, University Yamagata, Yamagata990, Japan

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