The percentage study of the gypsum content in the soils of Iraq comprise a two different depths are (20 - 25) cm and (25 - 150) cm , used special classification it is classification of (Barzanji,1973) by percentage of ...

The present work deals with the petrographic analysis studies of 256 fractions belong to 64 sand samples to identify the concentration and types of feldspar by using binocular microscope. In Zurbatiya, south Nasiriyah and ...