Biostratigraphy and sedimentary environment of Asmari Formation in Davan section, North of Kazerun
Subject Areas : Geoscience Fields in relation with Petroleum Geologymasood khoshnood 1 * , Hosyen Vaziri moghadam 2
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Keywords: Asmari Formation foraminifera microfacies biostratigraphy sedimentary environment,
Abstract :
This research concentrates on biostratigraphy, microfasies and Sedimentary environment of the Asmari Formation at Davan village in 10 Km north of Kazerun. Micropalaeontological study led to recognition of 25 genera and 15 species of foraminifera. Based on biostratigraphic study 3 biozones (1-Nummulites vascus – Nummulites fichteli assemblage zone, 2 -Lepdocyclina-Operculina- Ditrupa Assemblage Zone, 3- Archaias asmaricus- Archaias hensoni- Miogypsinoides complanatus Assemblage Zone) are determined. As a result, the age of the Asmari Formation is Oligocene (Rupelian – Chattian) at the study area. Depositional texture, petrographic analyses and fauna led to identification of 9 carbonate microfacies related to open marine, slope, bar and lagoon. These depositional environments correspond to inner, middle, and outer ramp.
Adams, T. D., and F. Bourgeois, 1967, Asmari biostratigraphy: Geological and Exploration, Iranian Offshore Oil Company Report, no. 1074, (unpublished).#
Amirshahkarami, M., A. Ghabishavi, and A. Rahmani, 2010, Biostratigraphy and Paleoenvironment of the larger benthic foraminifera in wells sections of the Asmari Formation from the Rag- e- Safid oil fild, Zagros Basin, southwest Iran: Stratigraphy and Sedimentology Researches, v. 40, p. 63-84.#
Amirshahkarami, M., H. Vaziri-Moghaddam, and A. Taheri, 2007a, Paleoenvironmental model and sequence stratigraphy of the Asmari Formation in southwest Iran: Historical Biology, v. 19 (2), p. 173-183.#
Beavington-Penney, S. J., A. Racey, 2004, Ecology of extant nummulitids and other larger benthic foraminifera: applications in palaeoenvironmental analysis: Earth Sciences, v. 67, p. 219–265.#
Brandano, M., Frezza, V., Tomassetti, L., Pedley, M., Matteucci, R., 2009, Facies analysis and palaeoenvironmental interpretation of the Late Oligocene Attard Member (Lower Coralline Limestone Formation), Malta, Sedimentology, 56(4), 1138–1158.#
Dunham, R. J., 1962, Classification of carbonat rocks according to their depositional texture: American Association of Petroleum Geologists, Memoir 1, p. 108-121.#
Ehrenberg, S.N., N. A. H. Pickard, G. V. Laursen, S. Monibi, Z. K. Mossadegh, T. A. Svana, A. A. M. Aqrawi, J. M. McArthur,and M. F. Thirlwall, 2007, Strontium isotope stratigraphy of the Asmari Formation (Oligocene–Lower Miocene), SW Iran: Journal of Petroleum Geology, v. 30, p. 107–128.#
Embry, A. F., and J. E. Klovan, 1971, Late Devonian reef tract on northeastern Banks Island, Northwest territories: Bulletin of Canadian Petroleum Geology, v. 19, p. 730-781.#
Flugel, E., 2010, Microfacies of Carbonate Rock, Analysis, Interpretation and Application: Springer-Verlag, Berlin, 984p#
Geel, T., 2000, Recognition of stratigraphic sequence in carbonate platform and slope empirical models based on microfacies analysis of Paleogene deposits in southeastern Spain, Palaeogeography, Palaeoclimatology, Palaeoecology, 155(3), 211-238.#
Hallock, P., 1987, Fluctuations in the trophic resource continuum: a factor in global diversity cycles: Paleoceanography, v. 2, p. 457–471.#
Hallock, P., 2001, Coral reefs in the 21st century: is the past the key to the future In: Greenstein, B.J., Carney, C.K. (Eds.), Proceedings 10th Symposium on the Geology of the Bahamas and other Carbonate Regions: Gerace Research Center, San Salvador, p. 8–13. #
Hohenegger, J., Yordanova, E., Nakano, Y., and F. Tatzreiter, 1999, Habitats of larger Foraminifera on the upper reef slope of Sesoko Island, Okinawa, Japan: Marine Micropaleontology, v. 36, no. 2, p. 109-168. #
Hottinger, L., 1997, Shallow bentihic foraminiferal assembelages as signals for depth of their deposition and their limitations: Bulletin de la Societe Geologique de France, 168/4, p. 491-505.#
James, G. A., and J. G. Wynd, 1965, Stratigraphic nomenclature of Iranian oil consortium, agreement area: American Association of Petroleum Geologists Bulletin, v. 49, p. 2182 - 2245.#
Laursen, G. V., S. Monibi, T. L. Allan, N. A. H. Pickard, A. Hosseiney, B. Vincent, Y. Hamon, F. S. P. van Buchem, A. Moallemi, and G. Druillion, 2009, The Asmari Formation Revisited: Changed Stratigraphic Allocation and New Biozonation: First International Petroleum Conference and Exhibition Shiraz, Iran. #
Mutti, M., and P. Hallok, 2003, Carbonate system along nutrient and temperature gradient: Some sedimentological and geochemical constraits: Earth- Science, v. 92, p. 465-475.#
Nebelsick, J. H., T. V. Stingl, and M. Rasser, 2001, Autochthonous Facies and Allochthonous Debris Flows compared: Early Oligocene carbonate facies patterns of the lower Inn valley (Tyrol, Austria): Facies, v. 44, p. 31-46.#
Pedley, M., 1996, Miocene reef facies of Pelagian region (Central Mediter ranean region). in E. K. Franseen, M. Esteben, W. C. Ward, and J. M. Rouchy, eds., Models for Carbonate Stratigraphy from Miocene Reef complexes of Mediterranean Regions: SEPM Concept Sediment Paleontology, v. 5, p. 247-259.#
Pomar, L., 2001a, Types of carbonate platforms: a genetic approach: Basin Research, v. 13, p. 313–334. #
Pomar, L., 2001b, Ecological control of sedimentary accomodation: evolution from a carbonate ramp to rimmed shelf, Upper Miocene, Balearic Islands: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 175, p. 249-272.#
Pomar, L., M. Brandano, and H. Westphal, 2004, Environmental factors influencing skeletal grain sediment associations: a critical review of Miocene examples from the western Mediterranean: Sedimentology, v. 51, p. 627-651.#
Pomar, L., Mateu-Vicens, G., Morsilli, M., Brandano, M., 2014, Carbonate ramp evolution during the Late Oligocene (Chattian), Salento Peninsula, southern Italy, Palaeogeogr Palaeoclimatol Palaeoecol, 404:109–132.#
Reiss, Z., and L. Hottinger, 1984, The Gulf of Aqaba: Ecological Micropaleontology: Springer-Verlag, v. 50, p. 1-354. #
Richardson, P. K., 1924, The geology and oil measures of southwest Persia: Journal of the Institute of Petroleum Thechnology, v. 10, p. 256-283.#
Romero, J., E. Caus, and J. Rossel, 2002, A model for the palaeoenvironmental distribution of larger foraminifera based on Late Middle Eocene deposits on the margine of the south Pyrenean basin (SE Spain): Palaeogeography, Palaeoclimatology, Palaeoecology, v. 179, p. 43–56.#
Seyrafian, A., H. Vaziri-Moghaddam, N. Arzani, and A. Taheri, 2011, Facies analysis of the Asmari Formation in central and north-central Zagros basin, southwest Iran: Biostratigraphy, paleoecology and diagenesis: Revista Mexicana de Ciencias Geológicas, v. 28, no. 3, p. 439-458.#
Shabafrooz, R., Mahboubi, A., Vaziri-moghaddam, H., Ghabeishavi, A., Moussavi-Harami, R., 2015a, Depositional architecture and sequence stratigraphy of the Oligo–Miocene Asmari platform; Southeastern Izeh Zone, Zagros Basin, Iran, Facies, v. 61, p. 423-455.#
Van Buchem, F. S. P., T .L. Allah, G.V. Laursen, M. Lotfpour, A. Moallemi, S. Monibi, H. Motiei, N. A.H. Pickard and B. Vincent, 2010, Regional stratigraphic reservoir types of the Oligo-Miocene deposits in the Dezful Embayment (Asmari and Pabdeh formations) SW Iran: Geological Society, London, Special Publication, v. 329, p. 219-263.#
Vaziri- Moghaddam, H., A. Seyrafian, A. Taheri, and H. Motiei, 2010, Oligocene-Miocene ramp system (Asmari Formation) in the NW of Zagros Basin, Iran: Microfacies, paleoenvironment and depositional sequence: Revista Mexicana de Ciencia Geológicals, v. 27, p. 56-71.#
Vaziri-Moghaddam, H., M. Kimiagari and A. Taheri, 2006, Depositional environment and sequence stratigraphy of the Oligo-Miocene Asmari Formation in SW Iran: Facies, v. 52(1), p. 41-51.#
Wilson, JL., 1975, Carbonate facies in geological history: Springer, Berlin, p. 471.#