%0 Journal Article %T petrography, elemental and isotopic variation of rudist biostrome of Maastrichtian platform in east Kopet Dagh basin, NE Iran %A M. H. Adabi %A Moussavi Harami, Sayyed Reza %A Mahboubi, Asadollah %A A. Shemirani %J Journal of Geological Society of Iran %@ 1735-2541 %D 2006