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A. Hashmie, A. Najafie, P. Rezaei, M. Ghorbanie
Department of Geology, Faculty of Science, Hormozgan University,
DOI: https://doi.org/10.17656/jzs.10289
Abstract:
The Asmari Formation (Oligocene-Miocene), a thick carbonate succession of shallow-
water carbonates of the intrashelf basin deposits of Zagros Mountains, has been studied to
determine its microfacies and paleoenvironments. In the study area (Bandar-pol anticline), the
Asmari Formation is subdivided into nine microfacies that are distinguished by petrographic
analysis on the basis of their depositional textures and fauna. Consequently, five major
depositional environments were identified in the formation. Based on the paleoecology and
lithology, five distinct depositional settings can be recognized: tidal flat (MF1), lagoon (MF2-3-
4), shoal (MF5), restricted (MF6) and open marine (MF7-8-9). Based on the environmental
interpretations, a ramp consisting of inner and middle parts prevails.
Keywords: Asmari Formation; Bndar-pol anticline; Microfacies; Carbonate ramp.
References
[1] Adams, C.G., Bourgeois, E.: Asmari biostratigraphy, Geological and Exploration Iranian Oil
Offshore Company Report. 1074, Unpublished,1967.
[2] Aguilera-Franco, N., Hernandez-Romano, U: Cenomanian-Turonian facies succession in the
Guerrero-Morelos Basin, Southern Mexico. Sedimentary Geology 170, 135–162., 2004.
[3] Alavi, M.:Regional stratigraphy of the Zagros fold-thrust belt of Iran and its proforeland
evolution , American Journal of Science. 304, 1–20,2004.
[4] Amirshahkarami, M., Vaziri-Moghaddam, H., Taheri, A.:Sedimentary facies and sequence
stratigraphy of the Asmari Formation at Chaman-Bolbol, Zagros Basin, Iran. Journal of Asian
Earth Sciences 29, 947-959, 2007a.
[5] Amirshahkarami, M., Vaziri-Moghaddam, H., Taheri, A. :Paleoenvironmental model and
sequence stratigraphy of the Asmari Formation in southwest Iran, Historical Biology, 19(2),
173-183, 2007b.
[6] Aqrawi, A.A.M., Keramati, M., Ehrenberg, S.N., Pickard, N., Moallemi, A., Svana, T., Darke,
G., Dickson, J.A.D., Oxtoby, N.H.:The origin of dolomite in the Asmari Formation
(Oligocene–Lower Miocene), Dezful Embayment, SW Iran, Journal of Petroleum Geology 29,
381–402, 2006.
[7] Bahroudi, A., Garranza, E.J., Soleimani, B.: Geochemical analysis of evaporate sedimentation
in the Gachsaran Formation, Zeli oil field, southwest Iran, Journal of Geochemical
Exploration, 111: 92-112, 2011.
[8] Barattolo, F., Bassi, D., Romero, R.,: Upper Eocene larger foraminiferal-coralline algal facies
from the Klokova Mountain(south continental Greece), Facies, 53(3), 361-375, 2007.
[9] Bassi, D., Hottinger, L., Nebelsick, H.:Larger Foraminifera from the Upper Oligocene of the
Venetian area, northeast Italy, Palaeontology, 5(4), 845-868, 2007.
[10] Beavington-Penney, S.J., Racey, A.:Ecology of extant nummulitids and other larger benthic
foraminifera. applications in Paleoenvironmental analysis, Earth Science Review, 67(3-4),
219-265, 2004.
[11] Boeckh , Lees ,(1929):Richardson Contribution to the stratigraphy and tectonics of the
Iranian ranges, In: Gregory JW, editor. The Structure of Asia.
[12] Bordenave, M.L., ( 2003):Gas prospective areas in the Zagros domain of Iran and the gulf
Iranian waters, Available from
http://www.searchanddiscovery.net/documents/bordenave02/index.htm, [Accessed 12-17-06].
[13] Busk, H.G., Mayo, H.T., (1918):Some notes on the geology of the Persian oilWelds", Journal
Institute Petroleum Technology 5, 5–26.
[14] Corda, L., Brandano, M., ( 2003):Aphotic zone carbonate production on a Miocene ramp,
Central Apennines, Italy, Sedimentary Geology, 161(1-2), 55–70.
[15] Dunham, R.J., (1962):Classification of carbonate rocks according to their depositional texture,
In: Ham, W.E. (Ed.), ClassiWcation of Carbonate Rocks. A Symposium: AAPG Bulletin, pp.
108–121.
[16] Ehrenberg, S.N., Pickard, N.A.H., Laursen, G.V., Monibi, S., Mossadegh, Z.K., Svana, T.A.,
Aqrawi A.A.M., McArthur J.M., Thirlwall M.F., (2007):Strontium isotope stratigraphy of the
Asmari Formation (Oligocene-Lower Miocene), SW Iran, Journal of Petroleum Geology 30,
107-128.
[17] Embry,AF., Klovan, JE., (1971):A Late Devonian reef tract on Northeastern Banks Island
NWT: Can Petroleum Geolgy Bull. 19:730–781[revision of Dunham classification].
[18] Fakhari, M., ( 2000) :Geological Map of Bandar-e-abbas, 1:250,000 Series. National Iranian
Oil Company Publications.
[19] Farzipour-Saein, A., Yassaghi, A., Sherkati, S., Koyi, H.,( 2009):Basin evolution of the
Lurestan region in the Zagros fold-and-thrust belt, Iran, J Petrol Geol. 32:5–19.
[20] Flugel,E., ( 2010):Microfacies of Carbonate Rocks: Analysis Interpretation and Application,
Springer, Berlin, p. 976.
[21] Geel, T., ( 2000):Recognition of Stratigraphic sequence in carbonate platform and slope
deposits: empirical models based on microfacies analyses of palaeogene deposits in
southeastern Spain, Palaeogeography, Palaeoclimatology, Palaeoecology155, 211-238.
[22] Hakimzadeh, S., Seyrafian, A., ( 2008):Late Oligocene-Early Miocene benthic foraminifera
and biostratigraphy of the Asmari Formation, south Yasuj, north-central Zagros basin, Iran,
Carbonates and Evaporites 23 (1), 1-10.
[23] Hallock, P., Glenn, E.C., (1986):Larger foraminifera: a tool for paleoenvironmental analysis
of Cenozoic depositional facies, Palaios, 1(1), 55–64.
[24] Hamedani, A., Torabi, H., Piller, W., Mandic, O., Steininger, F. F., Wielandt, U., Harzhauser,
M., Nebelsick, J. H., Schuster, F.,( 1997) :Oligocene/ Miocene sections from Zagros foreland
basins of Central Iran, Abstract, 18th IAS Regional Meeting of Sedimentology, Heidelberg,
pp. 155–156.
[25] Heydari, E., (2008):Tectonics versus eustatic control on supersequences of the Zagros
Mountains of Iran",. Tectonophysics 451, 56-70.
[26] Jalali, M.R., (1987): Stratigraphy of Zagros Basin, National Iranian Oil Company. Exploration
and Production Division Report 1249, 1072.
[27] James, G.A., Wynd, J.G., (1965): Stratigraphic nomenclature of Iranian oil consortium
agreement area, AAPG Bulletin 49, 2182e2245.
[28] Kalantari, A.,( 1986):Microfacies of carbonate rocks of Iran, National Iranian Oil Company,
Geological Laboratory Publication, Tehran, vol. 11, 520 pp.
[29] Kershaw, S., Brunton, F.R., (1999) :Paleozoic stromatoporoid taphonomy: ecologic and
environmental significance, Palaeogeography, Palaeoclimatology, Palaeoecology14, 313-328.
[30] Laursen, G.V., Monibi, S., Allan, T.L., Pickard, N.A., Hosseiney, A., Vincent, B., Hamon, Y.,
Van-Buchem, F.S.P., Moallemi, A., Druillion, G., ( 2009) :The Asmari Formation revisited:
changed stratigraphic allocation and new biozonation, First International Petroleum
Conference & Exhibition. European Association of Geoscientists and Engineers, Shiraz, Iran.
[31] Mossadegh, Z.K., Haig, D.W., Allan, T., Adabi, M.H., Sadeghi, A.,)2009(:Salinity changes
during Late Oligocene to Early Miocene Asmari Formation deposition, Zagros Mountains,
Iran. Palaeogeography Palaeoclimatology Palaeoecology 272, 17-36.
[32] Motiei, H., (1993):Stratigraphy of Zagros. In: Treatisie of Geology of Iran", Iran Geology
Survey, Published, pp. 281–289.
[33] Motiei, H., (2001):Simplified table of rock units in southwest Iran, Tehran, Keyhan
Exploration and Production Services
[34] Nadjafi, M., Mahboubi, A., Moussavi-Harami, R., Mirzaee R., (2004):Depositional history
and sequence stratigraphy of outcropping Tertiary carbonates in the Jahrum and Asmari
Formations, Shiraz area (SW Iran). Journal of Petroleum Geology 27,179–190.
[35] Nebelsick, J.H., Rasser, M., (2005):Bassi, Facies dynamic in Eocene to Oligocene
Circumalpine carbonates, Facies, 51(4), 197-216.
[36] Nebelsick, J.H., Stingl, V., Rasser, M., (2001): Autochthonous facies and allochthonous
debris flows compared: Early Oligocene carbonate facies patterns of the Lower Inn Valley
(Tyrol, Austria)". Facies 44:31–45.
[37] Rahmania, A., Vaziri-Moghaddama, H., Taherib, A. and Ghabeishavi, A. (2009): A model for
the paleoenvironmental distribution of larger foraminifera of Oligocene–Miocene carbonate
rocks at Khaviz Anticline, Zagros Basin, SW Iran. Historical Biology, Vol. 21, Nos. 3–4,215-
227.
[38] Rasser, M.W., Nebelsick, J.H., (2003) :Provenance analysis of Oligocene autochthonous and
allochthonous coralline algae: a quantitative approach towards reconstructing transported
assemblages, Palaeogeography, Palaeoclimatology Palaeoecology, 201(1), 89-111.
[39] Richardson, R.K., (1924):The geology and oil measures of southwest Persia. Journal Institute
Petroleum Technology 10, 256–283.
[40] Riding, R., Martin, T.M., Braga, T.C., (1991): Coral-stromatolite reef framework, Upper
Miocene, Almeria, Spain". Sedimentology 38, 799–818.
[41] Romero, J., Caus, E., Rosell, J., ( 2002):A model for the palaeoenvironmental distribution of
larger foraminifera based on late Middle Eocene deposits on the margin of the South Pyrenean
basin (NE Spain). Palaeogeography, Palaeoclimatology, Palaeoecology, 179(1), 43–56.
[42] Sadeghi, R., Vaziri-Moghaddam, H., Taheri, A., (2009): Biostratigraphy and Palaeoecology of
the Oligo-Miocene succession in Fars and Khuzestan areas (Zagros Basin, SW Iran). Hist
Biol. 21:17–31.
[43] Sahraeyan, M., Bahrami, M., Arzaghi, S., ( 2013):Facies analysis and depositional
environments of the OligoceneeMiocene Asmari Formation, Zagros Basin, Iran, Southwestern
Iran. Journal of Geoscience Frontiers, 1-10.
[44] Seyrafian, A., Hamedani, A., (1998) :Microfacies and depositional environment of the Upper
Asmari Formation (Burdigalian), north-central Zagros Basin, Iran. N. Jb. Geol. Palaont. Abh.
[45] Seyrafian, A., Hamedani, A.,( 2003) :Microfacies and palaeoenvironmental interpretation of
the lower Asmari Formation (Oligocene), North- Central Zagros Basin, Iran. N. Jb. Geol.
Palaont. Mh. 3, 164–174.
[46] Seyrafian, A., Mojikhalifeh, A.R., (2005):Biostratigraphy of the Late Paleogene-Early
Neogene succession, north-central border of Persian Gulf, Carbonates and Evaporites, 20(1),
91-97.
[47] Seyrafian, A., Vaziri-Moghaddam, H., Torabi, H., ( 1996) :Biostratigraphy of the Asmari
Formation, Burujen area, Iran. J. Sci. 7/1, 31–47.
[48] Seyrafian, A.,(1981):Geological study of the Siah Makan Field (Asmari Formation). National
Iranian Oil Company, Report., 37–45, unpublished.
[49] Seyrafian, A.,(2000) :Microfacies and depositional environments of the Asmari Formation, at
Dehdes area (A correlation across Central Zagros Basin). Carbonates and Evaporites 15, 22–
48.
[50] Tucker, M.E., (1985): Shallow marine carbonate facies and facies models, in Brenchley P.J.,
Williams B.P.J. (eds.), Sedimentology, recent development and applied aspects: Geological
Society of London, Special Publication, 18, 139–161.
[51] Tucker, M.E., Calvet, F., Hunt, D., (1993) :Sequence stratigraphy of carbonate ramps:
systems tracts, models and application to the Muschelkalk carbonate platform of eastern
Spain. In: Posamentier, H.W., Summerhayes, C.P., Haq, B.U., Allen, G.P. (Eds.), Sequence
stratigraphy and facies associations: Special Publication International Associations of
Sedimentology, 18, pp. 397–415.
[52] Tucker, M.E., Wright, V.P.,)1990(:Carbonate sedimentology, Oxford, Blackwell Scientific
Publications, 425 pp.
[53] Vaziri-Moghaddam, H., Kimiagari, M., Taheri, A.,) 2006(:Depositional environment and
sequence stratigraphy of the Oligo-Miocene Asmari Formation in SW Iran. Facies, 52(1), 41-
51.
[54] Vaziri-Moghaddam, H., Seyrafian, A., Taheri, A., Motiei, H., (2010): Oligocene-
Miocene ramp system(Asmari Formation) in the NW of the Zagros basin, Iran:
Microfacies, paleoenvironment and depositional sequence, de Ciencias Geologicas,
27: 56-71.
[55] Wells, A.J.,(1967):Lithofacies and geological History of Lower Tertiary sediments in
southwest Iran. IOOC Report 1108.
[56] Wilson, J.L.,)1975) :Carbonate facies in geological history New York, Springer, 471 pp.
[57] Wynd, J., (1965) Biofacies of Iranian Oil Consortium Agreement Area. IOOC Report 1082,
Unpublished.
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