Biostratigraphy, microfacies and sedimentary environment of the Jahrum Formation in Chaharmahal Bakhtiari province, West of Iran

Iranian Journal of Earth Sciences

مقاله 4، دوره 15، شماره 1، فروردین 2023، صفحه 34-43   

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.30495/ijes.2021.1912770.1549

نویسندگان

Bahman Javadian¹؛ Seyed Ahmad Babazadeh^{* 2}؛ Ali Solgi¹؛ Burzu Asghari Pirbaluti³

¹Department of Geology, Science & Research Branch, Islamic Azad University, Tehran, Iran

²Department of Geology, Payame Noor University, Po. Box 19395-3697, Tehran Payame Noor University, Iran

³Department of Oil Engineering, Masjed-Soleiman Branch, Islamic Azad University, Masjed-Soleiman, Iran

چکیده

In this research, the biostratigraphy, microfacies, and depositional environment of carbonate sediments of the Jahrum Formation will be investigated based on microscopic textures and the distribution of benthic foraminifera. The Jahrum Formation was measured from Kuh-e-Hamze Ali in the Chaharmahal Bakhtiari province (Zagros Basin, Iran). The biostratigraphic analysis of this formation has led to the detection of three biozones in this area. These biozones consist of Somalina subzone, Nummulites–Alveolina assemblage subzone, and Nummulites fabianii- Nummulites striatus assemblage subzone which assigned to Middle and Late Eocene. The Nummulites fabianii- Nummulites striatus assemblage subzone is represented for the first time in the studied area. Nine microfacies are identified based on their fossil content (mainly foraminifera) and sedimentary textures. They consist of Dolostone, Mudstone with quartz, Bioclast- miliolids wackestone/packstone, Praerhapydionina -miliolid wackestone, Alveolina -Nummulites-Orbitolites wackestone/packstone, Bioclast–miliolid-Rotalia wackestone/packstone, Bioclast-lump packstone/grainstone, Interaclast-bioclast-Alveolina wackestone/grainstone, and Bioclast-Nummulites wackestone/packstone. These facies were deposited in four major depositional environments from a tidal flat, lagoon, shoal, and open marine environmental settings. The depositional environment of the Jahrum Formation is interpreted as a carbonate ramp.

کلیدواژه‌ها

Biostratigraphy؛ Microfacies؛ Jahrum Formation؛ Eocene؛ West of Iran

مراجع

1. Alavi M (2004) Regional stratigraphy of the Zagros fold-thrust belt of Iran and its proforeland evolution, American Journal of Science 304: 1–20.
2. Al-saad H (2005) Lithostratigraphy of the Middle Eocene Dammam Formation in Qatar, Arabian Gulf: effect of sea-level fluctuations along a tidal environment, Journal of Asian Earth Sciences 25: 781-789.
3. Babazadeh SA (2008) Lower Eocene transgressive successions of Sahlabad province, eastern Iran, the implication of biostratigraphy and microfacies analysis, Revue de Paleobiologie. 27(2):  449-459.
4. Babazadeh SA, Cluzel D (2022) Biostratigraphy and paleoenvironmental significance of Paleogene foraminiferal assemblages from Deashte Zari area in High Zagros, west Iran, Revista Brasileira de Paleontologia, 25: 189–207.
5. Babazadeh SA, Cluzel D (2023) New biostratigraphy and microfacies analysis of Eocene Jahrum Formation (Shahrekord region, High Zagros, West Iran); A carbonate platform within the Neo-Tethys oceanic realm, Bulletin de la Société Géologique de France 194: 1–24.
6. Barattolo F, Bassi D, Romano R (2007) Upper Eocene larger foraminiferal–coralline algal facies from the Klokova Mountain (southern continental Greece), Facies 53: 361-375.
7. Beavington-Penney SJ, Racey A (2004) Ecology of extant nummulitids and other larger benthic foraminifera, applications in paleoenvironmental analysis, Earth Science Review 67(3-4): 219-265.
8. Beigi M, Jafarian A, Mohammad Javanbakht M, Wanas, HA, Mattern F, Tabatabaei A (2017) Facies analysis, diagenesis and sequence stratigraphy of the carbonate-evaporite succession of the Upper Jurassic Surmeh Formation: Impacts on reservoir quality (Salman Oil Field, Persian Gulf, Iran) Journal of African Earth Sciences 129: 179-194.
9. Burchette TP, Wright VP (1992) Carbonate ramp depositional systems, Sedimentary Geology 79: 3 - 57.
10. Changaei K,  Babazadeh SA, Arian M, Asgari Pirbaloti B (2023) Systematic paleontology of Bartonian larger benthic foraminifera from Shahrekord region in High Zagros, Iran. Paleontological Research, 27: 73-84.
11. Dunham RJ (1962) Classification of carbonate rocks according to depositional texture, American Association of Petroleum Geologist Bulletin 1: 108- 121.
12. Embry AF, Klovan J E (1971) A Late Devonian reef tract on northeastern bank Island, Northwest Territories, Bulletin of Canadian Petrology Geology 19: 730-781.
13. Ferrer J (1971) El Paleoceno y Eoceno del borde sur-oriental de la depression del Ebro, Memoire Suisse paleontology 90: 1-70. 
14. Flugel E (2004) Microfacies of carbonate rocks, Berlin Heidberg: Springer-Verlag 976 p.
15. Flugel E (2010) Microfacies of carbonate rocks, analysis, interpretation and application, Berlin: Springer 976p.
16. 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.
17. Ghasem Shirazi B, Bakhshandeh L, Yazdi A (2014a) Biozonation and Paleobathymetry on Foraminifera Upper Cretaceous Deposites of Central Iran Basins (Isfahan, Baharestan Section), Open Journal of Geology 4 (8): 343-353
18. Ghasem Shirazi B, Bakhshandeh L, Yazdi A (2014b) Paleoecology of Upper Cretaceous Sediments in Central Iran, Kerman (Bondar- e Bido Section) Based on Ostracods. Marine Science 4 (2): 49-57
19. Hallock P, Glenn EC (1986) Larger foraminifera: a tool for paleoenvironmental analysis of Cenozoic depositional facies, Palaios 1(1): 55–64.
20. Hohenegger J, Yordanova E, Hatta A (2000) Remarks on West Pacific, Nummulitidae. Journal of Research 30(1): 3–28. 
21. Hohenegger J, Yordanova E, Nakano Y, Tatzreiter F (1999) Habitats of larger foraminifera on the reef slope of Sesoko Island, Okinawa, Japan, Marine Micropaleontology 36:109–168.
22. Hottinger L (1973) Selected Paleogene larger foraminifera, in Hallam, A. (ed.), Atlas of Paleobiogeography, Elsevier, Amsterdam 443-452.
23. Hottinger L (1977) Foraminiferes operculiniformes, Memoire du Museum national d’histoire naturelle 40:1-159.
24. Hottinger L (1999) Shallow benthic foraminifera assemblages as signals for depth of their deposition and their limitation, Bulletin de la Societe Geologique de France 168: 491–505.
25. Hottinger L (2007) Revision of the foraminiferal genus Globoreticulina Rahaghi, 1978, and of its associated fauna of larger foraminifera from the late Middle Eocene of Iran, Carnets de Géologie 27: 1-55.
26. James GA, Wynd JG (1965) Stratigraphic nomenclature of Iranian oil consortium agreement area, American Association of Petroleum Geologist Bulletin 49(12): 2182-2245.
27. Jehangir Khan M, Ghazi S, Mehmood M, Yazdi A, Naseem AA, Serwar U, Zaheer A, Ullah H (2021) Sedimentological and provenance analysis of the Cretaceous Moro formation Rakhi Gorge, Eastern Sulaiman Range, Pakistan, Iranian Journal of Earth Sciences 13 (4), 252-266.
28. Kalantari A (1986) Microfacies of carbonate rocks of Iran. National Iranian Oil Company, Exploration and Production Geological Laboratory Publication 11: 520-263.
29. Khatibi Mehr M, Adabi HM (2013) Microfacies and geochemical evidence for original aragonite mineralogy of a dominated carbonate ramp system in the late Paleocene to middle Eocene, Alborz Basin, Iran, Carbonates and Evaporites 29: 155-175.
30. Langer M, Hottinger L (2000) Biogeography of selected larger, Micropaleontology 46(1): 105–126.
31. Loeblich AR, Tappan H (1988) Foraminiferal genera and their classification. Van Nostrand Reinhold Company, New York.
32. Luterbacher H (1984) Paleoecology of Foraminifera in the Paleogene of the southern Pyrenees, Benthos 83, 2nd International Symposium Benthic Foraminifera: 389–392.
33. Moallemi SA (2010) Depositional environment and the effect of diagenetic processes on reservoir characterization of the Jahrum-Asmari Formation in east of Qatar-Kazerun Fault (west of Interior Fars), Ph.D. thesis, Shahid Beheshti University 400p.
34. Moallemi SA, Daneshian J, Hosseinzadeh M (2014) Lithostratigraphy, microfacies investigation and paleoenvironmental reconstruction of the Jahrum Formation in the west and north of the Bandar Abbass area, South Iran, Advances in Environmental Biology 8 (4): 963-974.
35. Motiei H (2001) Simplified table of rock units in southwest Iran, Tehran, Keyhan Exploration and Production Services.
36. Nadjafi MA, Mahboubi R, Moussavi-Harami 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.
37. Nebelsick JH, Rasser M, Bassi D (2005) Facies dynamics in Eocene to Oligocene circumalpine carbonate, Facies 51: 197-216.
38. Parastoo T (2002) Biostratigraphy and microfacies of Eocene deposit (Jahrum Formation) in northwest Boldaji, MSC. Thesis, Esfahan University.
39. Rahaghi A (1980) Tertiary faunal assemblage of Qum-Kashan, Sabzewar and Jahrum area: National Iranian Oil Company, Geological Laboratories, Teheran, publication 8: 64.
40. Rahaghi A (1983) Stratigraphy and faunal assemblage of Paleocene-Eocene in Iran, N.I.O.C. publication 7: 161.
41. Rasser MW, Scheibner C, Mutti M (2005) A paleoenvironmental standard section for early Ilerdian tropical carbonate factories (Corbières, France; Pyrenées, Spain), Facies 51: 217–232.
42. Read JF (1982) Carbonate margins of passive (extensional) continental margins: types, characteristics and evolution, Tectonophysics 81: 195–212. 
43. Reiss ZL, Hottinger (1984) The Gulf of Aqaba, ecological micropaleontology, Ecological Studies 50: 1 - 354.
44. Romero J, Caus E, Rossel j (2002) A model for the paleoenvironmental distribution of larger foraminifera based on late middle Eocene deposits on the margin of the South Pyrenean basin, Palaeogeograph, Palaeoclimatology, Palaeoecology 179: 43-56.
45. Scheibner C, Rasser MW, and Mutti M (2007) Facies changes across the Paleocene-Eocene boundary: The Campo section (Pyrenees, Spain) revisited, Paleogeography, Palaeoclimatology, Palaeoecology 248: 145–168.
46. Seyrafian A (1998) Petrofacies analysis and depositional environment of the Jahrum Formation (Eocene), south-southwest of Burujen, Iran, Carbonates and Evaporites 13: 91-99.
47. Seyrafian A (2000) Microfacies and depositional environments of the Asmari Formation, at Dehdez area (a correlation across central Zagros Basin), Carbonates and Evaporites 15: 121-129.
48. Stocklin J (1968) Structural history and tectonics of Iran. A review, American Association Petroleum Geological Bulletin 52: 1229-1258.
49. Taheri A, Vaziri-Moghaddam H, Seyrafian A (2008) Relationships between foraminiferal assemblages and depositional sequences in Jahrum Formation, Ardal area (Zagros Basin, SW Iran), Historical Biology: A Journal of Paleobiology 20: 191-201.
50. Tucker ME (1985) Carbonate Petrology: An Introduction: 2nd edition: Oxford, Blackwell Scientific Publications 272 p.
51. Tucker ME, Wright VP (1990) Carbonate Sedimentology. Cambridge, Blackwell Science, 482 p.
52. Vaziri-Moghaddam H, Seyrafian A, Taraneh P (2002) Biofacies and sequence stratigraphy of the Eocene succession, at Hamzeh-Ali area, north-central Zagros, Iran, Carbonates and Evaporites 17 (1): 60-67.
53. Wanas HA (2008) Cenomanian rocks in the Sinai Peninsula, Northeast Egypt: facies analysis and sequence stratigraphy, Journal of African Earth Sciences 52: 125-138.
54. Wilmsen M, Furisch FT, Seyed-Emami K, Majidifard MR, Zamani PM (2010) Facies analysis of a large-scale Jurassic shelf-lagoon: the Kamar-e-Mehdi Formation of east-central Iran, Facies 56: 59–87.
55. Wilson MEJ, Evans MEJ (2002) Sedimentology and diagenesis of Tertiary carbonates on the Mangkalihat Peninsula, Borneo: implications for subsurface reservoir quality, Marine and Petroleum Geology 19: 873–900.
56. Wynd AG (1965) Biofacies of the Iranian oil consortium agreement area. I.O.O.C. Report No. 1082 (Unpublished Paper).
57. Zamagni j, Mutti M, Kosir A (2008) Evolution of shallow benthic communities during the late Paleocene- earliest Eocene transition in the Northern Tethys (SW Slovenia), Facies 54: 25-43.   
58. Ziegler MA (2001) Late Permian to Holocene paleofacies evolution of the Arabian plate and its hydrocarbon occurrences, Geoarabia 6 (3): 445–504.