Document Type : Original Research Paper
Authors
1 Ph.D., Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Assistant Professor,Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran
3 Associate Professor, Department of Geology, Faculty of Science, North Tehran Branch, Islamic Azad University, Tehran, Iran
Abstract
Foraminiferal contents of the Permian strata of the Kuh-e Baghvang in central Iran has been investigated. The section is located some 45Km Northwest of Tabas and south of Shirgeshtvillage. The Permian deposits of the Jamal Fm. with a thickness of 270 meters are underlain by the Sardar Fm. disconformably and in turn overlain by the Lower Triassic deposits of Sorkh shale Formation. A total of 124 rock samples have been systematically taken from various layers for an accurate biostratigraphic study. Forty one genera and 48 species of Foraminifera and 10 generaand 12 species of Algae have also been determined through this study. According to the index fossils, geochronology of Member 1 and Member 2 of the Jamal Fm. is attributed to Early Murgabian. Moreover, according to the biostratigraphic study, some index fossils of Fusulinidae have been recorded and the following assemblage zones have been differentiated which are equivalent to international biozones of Leven(1975 and Ishii (1975).
Paradunbarula – Geinitzina Assemblage Zone (Murgabian)
Dagmarita – Paraglobivalvulina Assemblage Zone (Dzhulfian)
Colaniella – Reichelina Assemblage Zone (Changxingian).
Keywords
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