Dumortirtia and Pleydellia ( Ammonoidea ) from the Shemshak Formation( Late Triassic - Middle Jurassic) East of Shahmirzad ( SE Alborz, Iran)

The Baluchistan Desert, South of the Helmand River

A New Method for Interpretation of Aeromagnetic Maps

Approximate rules for the composition of Apparent Resistivity sections

Geochemistry of arc volcanic rocks of the Zagros Crush Zone, Neyriz, Iran