Stratigraphy, Facies Analysis and Ammonite Fauna of the Qal'eh Dokhtar Formation ( Middle- Upper Jurassic) at the Type Locality West of Boshrouyeh ( East- Central Iran)

The Isotopic Composition of Lead from ST. Helelna and Ascension Islands

The Jurassic Karkar Formation in Northeast Afghanistan

Re- Evaluation of the Palaeogeographic Argument for an Expanding Earth

Discovery of Two Ophiolite Complexes of Different Ages in the Khoy Area( NW iran)