Document Type : Original Research Paper
Authors
1 Ph.D. Student, Department of Geology, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Assistant Professor, Department of Geology, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran
3 Associate Professor, Department of Geology, Faculty of Sciences, Islamic Azad University, North -Tehran Branch, Tehran, Iran
4 Ph. D., Geological Survey of Iran, Tehran, Iran
Abstract
The studied section is located west of Tabas (Rahdar Mountion) in the Kalmard Block. The newly named Chili formation, as the first rock unit of the Khan group consist mainly of arenacous limestone, limestone and dolomite and has disconformity contact with underlying lower carboniferous deposits (Padeh formation) and overlying late Yakhtashian-Early Murgabian (Sartakht formation) bauxite and laterite horizon,in this study 6 genus and 19 species of Fusulinids were recognized which could be grouped in two Biozones. The first biozone correspond to Perigondwania pamirensis Zone belonging to Late Sakmarian. The second one is comparable with Chalaroschwagerina vulgaris Zone of Early Yakhtashian age. The mentioned biozone is fairly comparable with Kalaktash assemblage already reported from Central Pamir,Karakorom, Afghanestan and south Tibet regions.
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