IN ORDER TO SURVEY OF LITHOSTRATIGRAPHIC AND BIOSTRATIGRAPHIC DESCRIPTIONS OF QOM FORMATION IN SOUTHWEST AND SOUTHEAST OF RAZAN, 3 STRATIGRAPHIC SECTIONS IN QOM FORMATION WITH TOTAL THICKNESS OF 466.5 METERS HAVE BEEN STUDIED. THE MENTIONED AREAS HAVE BEEN CONSISTED OF TECTONIC BLOCKS WHICH IN MOST OF HAS JUST OUTCROP QOM FORMATION. COMPARISON AND CORRELATION OF DESCRIPTIONS OF SECTIONS INDICATE THAT JUST “F” MEMBER OF QOM FORMATION HAS BEEN DEPOSITED IN SHIRIN SU AND GHAPAGH TAPPEH.
WE CAN CORRELATE DEPOSITS OF QOM FORMATION IN SHAHANJARIN SECTION WITH “A – F” DEPOSITS OF QOM FORMATION IN THE TYPE SECTION.
THE AGE OF QOM FORMATION IN SHIRIN SU AND GHAPAGH TAPPEH IS BURDIGALIAN, AND IN SHAHANJARIN IS ATTRIBUTED TO OLIGOCENE?, AQUITANIAN AND BURDIGALIAN.