Petrography of Rodingites in Nain Ophiolitic Sequence (Central Iran)

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

   Abstract:
      Rodingites are calcium rich and silica poor rocks, which are formed due to calcium metasomatism of basic rocks during serpentinization of ultramafic rocks. Studies of rodingites in Nain amphibolites show that they place as veined dismembered and boudined bodies within serpentinites and formed due to metasomatization of gabbroic dykes, pegmatitic gabbro, and cumulate gabbro. Rodingitization consists of two static and dynamic forms. As a result of process original minerals of gabbroic rocks are converted into minerals of prehnite, hydrogrossular, zoisite, tremolite, pectolite, vesuvianite, chlorite, and diopside.

   General:
     Rodingites are calcium rich and silica poor rocks, which are formed due to calcium metasomatism of basic rocks during serpentinization of ultramafic rocks. Studies of rodingites in Nain amphibolites show that they place as veined dismembered and boudined bodies within serpentinites and formed due to metasomatization of gabbroic dykes, pegmatitic gabbro, and cumulate gabbro. Rodingitization consists of two static and dynamic forms. As a result of process original minerals of gabbroic rocks are converted into minerals of prehnite, hydrogrossular, zoisite, tremolite, pectolite, vesuvianite, chlorite, and diopside

tags: ISFAHAN