Study of Petrology and Geochemistry of Intrusive Rocks,Qare-Bolagh Area (NW of Iram)

Category Petrology
Group GSI.IR
Location 21th symposium on geosciences
Holding Date 21 May 2008

   Abstract:
      Petrology and Geochemistry of Qare ? Bolagh plutonic rocks (NW of Iran).Granitoids Qare ? Bolagh intrusive rock is located at about 20km east of Hashtroud in NW of Iran. These rocks are intruded into volcanic rocks of Eocene age and produced a weak contact metamorphic rock. Main rocks of the area are granodiorit, quartz ? monzodiorite and monzodiorite. The rocks contain plagioclase, quartz, alkali feldspar and amphibole as major minerals, accessories are zircon, sphene, apatite and opaque minerals, minor minerals are biotite, chlorite and epidote.
   Geochemical studies indicate active continental margin for tectonic setting of this granitoid. The pluton emplaced in shallow crustal depth and has little thermal effect on volcanic rocks and produced low-grad contact metamorphism in the field of albite epidote ? hornfelse facies. The volcanic rocks are chiefly andesite, latite, trachyt, rhyolite, tuff and pyroclastic rocks

General:
     Petrology and Geochemistry of Qare- Bolagh plutonic rocks (NW of Iran). Granitoids Qare-Bolagh intrusive rock is located at about 20km east of Hashtroud in NW of Iran. These rocks are intruded into volcanic rocks of Eocene age and produced a weak contact metamorphic rock. Main rocks of the area are granodiorit, quartz-monzodiorite and monzodiorite. The rocks contain plagioclase, quartz, alkali feldspar and amphibole as major minerals, accessories are zircon, sphene, apatite and opaque minerals, minor minerals are biotite, chlorite and epidote.
   Geochemical studies indicate active continental margin for tectonic setting of this granitoid. The pluton emplaced in shallow crustal depth and has little thermal effect on volcanic rocks and produced low-grad contact metamorphism in the field of albite epidote ? hornfelse facies. The volcanic rocks are chiefly andesite, latite, trachyt, rhyolite, tuff and pyroclastic rocks.

tags: AZARBAIJAN SHARGHI