Sedimentary Environment and Relative Sea Level Changes of the Asmari Formation Deposited in Lurestan Basin, Southwest of Zagros — Oak Academic Publishing
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Sedimentary Environment and Relative Sea Level Changes of the Asmari Formation Deposited in Lurestan Basin, Southwest of Zagros
Geology Department, Islamic Azad University, North Tehran, Iran
,
Geology Department, Islamic Azad University, North Tehran, Iran
,
Research Institute of Petroleum Industry (RIPI), NIOC, Tehran, Iran
1 Geology Department, Islamic Azad University, North Tehran, Iran
2 Geology Department, Islamic Azad University, North Tehran, Iran
3 Research Institute of Petroleum Industry (RIPI), NIOC, Tehran, Iran
Asmari Formation is deposited in the Zagros Foreland basin during Oligo-Miocene time. In the presented research, Sheykh Makan (north of Kabir-Kuh Anticline) section located at Lurestan Basin is studied to achieve an understanding of facies changes, paleoenvironment and also sequence stratigraphic framework (relative sea level changes) of the Asmari Formation. Results of this study revealed that 15 microfacies grouped to four facies belts named as tidal flat, lagoon, barrier and open marine are the main constituents. A homoclinal ramp is determined as the depositional setting of the Asmari Formation. In Sheykh Makan Section, studied interval contains three third-order sequences aging oligmiocene. It overlies gradually shaly Pabdeh Formation and is overlain by evaporitic Gachsaran Formatin.
KeywordsAsmari FormationOligomiceneMicrofaciesSequence StratigraphicLurestan BasinSouthwest of Zagros
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