Department of Geology;
Ferdowsi University;
Mashhad;
Iran;
Department of Geology;
Siatan and Baluchestan University;
Zahedan;
Iran;
Department of Geology;
Zahedan Branch;
Islamic Azad University;
Zahedan;
Iran;
Kalmard; Lower; Carboniferous; Gachal; Formation; Rahdar; Section; Homoclinal; Paleothysis; Kaskaskia; Khan; Group;