GEOLOGICAL SURVEY OF IRAN | WWW.GSI.IR
 
فارسی  |     
Home |  Contact Us |  Help 
    Member Login
Username
Password
Professional search
Article type
State name
Location
Article title
Fulltext
Author name
How To Use:
  • Type your keywords in the search box.
  • Press the Search button to start your search.
  • Article title : Study of Relation between Plastic (ductile) Deformation And Igneous- Metamorphic Occurrences in Posht-e- Badam Metamorphic Complex (PMC) West of Central Iran Micro-plate
    Article type : Tectonic & Seismotectonic
    Location : 21th symposium on geosciences

    Fulltext :

       Abstract:
          Posht-e-Badam Metamorphic Complex (PMC) has at least undergone two ductile deformations of D1 and D2, contemporaneous with the progressive metamorphism of M1 and M2. These deformations were accompanied with the syn-tectonic granitoid emplacement of Anarg as well as Chamgo-Esmailabad Plutons, respectively. Emplacements of the granitoids are reinforced with the appearance of syn-D1 cordierite, syn-D2 andalusite, and syn- to post-D2 starulite and garnet porphyroblasts. Due to retrograde metamorphism of M3, pseudomorphs of actionlite, chlorite, epidote, and calcite have replaced the high P-T of M2 such as green hornblendes and ca-rich plagioclases. Intracrystaline deformational and dynamic recrystallization of minerals of PBC rocks occurred in the D3 brittle-ductile shear zones.

       General:
         Posht-e-Badam Metamorphic Complex (PMC) has at least undergone two ductile deformations of D1 and D2, contemporaneous with the progressive metamorphism of M1 and M2. These deformations were accompanied with the syn-tectonic granitoid emplacement of Anarg as well as Chamgo-Esmailabad Plutons, respectively, Emplacements of the granitoids are reinforced with the appearance of syn-D1 cordierite, syn-D2 andalusite, and syn-to post-D2 starulite and garnet porphyroblasts. Due to retrograde metamorphism of M3, pseudomorphs of actionlite, chlorite, epidote, and calcite have replaced the high P-T of M2 such as green hornblendes and ca-rich plagioclases. Intracrystaline deformational and dynamic recrystallization of minerals of PBC rocks occurred in the D3 brittle-ductile shear zones.

    Celebration date : 24 Saturday May 2008
    
    Related links

    External links