%0 Journal Article %T Nannostratigraphy and paleoenvironmental study of the lower boundary of the Kalat Formation in East and West of Kopeh- Dagh, Northeast Iran %A Marziyeh Notghi Moghaddam %A Hadavi, Fatemeh %A Moheghy, Mohammad Anvar %J Geopersia %@ 2228-7817 %D 2013