%0 Journal Article %T Nannostratigraphy, nannofossil events, and paleoclimate fluctuations in the lower boundary of Kalat formation in East Kopet Dagh (NE Iran) %A Hadavi, Fatemeh %A Notghi Moghaddam, Marziyeh %J Arabian Journal of Geosciences %@ 1866-7511 %D 2013