Biostratigraphy correlation, of Cretaceous successions in Kuh-e-Rahmat and Kuh-e-Sabz sections, NE Shiraz, Zagros (SW Iran)

الموضوعات :

Reza Haftlang ¹ (Department of Geology, Shiraz branch, Islamic Azad University, Shiraz, Iran)
Massih Afghah ² (Department of Geology, Shiraz branch, Islamic Azad University, Shiraz, Iran)
Ali Aghanabati ³ (Department of Geology, Islamic Azad University, Tehran North Branch, Tehran, Iran)
Mahnaz Parvaneh Nejad Shirazi ⁴ (Department of Geology, Payame Noor University, PO Box 19395- 3697, Tehran, Iran)

تاريخ الإرسال : 17 الإثنين , محرم, 1441 تاريخ التأكيد : 10 الثلاثاء , جمادى الثانية, 1441 تاريخ الإصدار : 14 الخميس , صفر, 1442

الکلمات المفتاحية: Cretaceous, Foraminifer, Biostratigraphy, Zagros,

ملخص المقالة :

Two stratigraphic sections (Kuh-e-Rahmat and Kuh-e-Sabz) of Upper Cretaceous strata in the Interior Fars region (SW of Iran) were selected. Lower Cretaceous succession of Kuh-e-Rahmat was consisted of Dariyan, Kazhdumi Sarvak and Ilam Formations. The lower contact of the Sarvak Formation with Kazhdumi Formation is described as a transitional type whereas the upper contact of Sarvak Formation was not clear. Stratigraphic distribution of microfossils reveals three biozones in this section: 1: Palorbitolina lenticularis (Aptian), 2: Orbitolina concava and Hemicyclamina sigali (late Albian-early Cenomanian), 3: Stomiosphaera conoidea (Late Cenomanian-Early Turonian). Kuh-e-Sabz lithologic aspect consists of two rock units such as: Sarvak Formation and thin-bedded limestone of lower part of Ilam Formation. The lower contact of the Sarvak Formation was not clear whereas the upper contact with Ilam Fm. was exposed as an erosional disconformity including oxidized zone. Vertical distribution of investigated taxa supports three biozones: 1: Taberina bingistani zone (middle Cenomanian), 2: Praelveolina cretacea zone (late Cenomanian), 3: Dicyclina schlumbergeri zone (Santonian-Campanian). The Sarvak Formation of Kuh-e-Rahmat was deposited in an inner shelf paleoenvironment (as open marine facies) because of well distributed of pelagic fauna, while Kuh-e-Sabz section mostly shows reef facies (back reef-fore) along the platform including agglutinated and porcelaneous foraminifera which reflects an inner shallow platform (0-50m).

المصادر:

1. Afghah M, Abtahiyan A, Saberi A (2016) Foraminiferal Biostratigraphy of Early Crestaceous (Hauterivian-Barremian) Sediments of the Zagros Basin (SW of Iran). Journal of African Earth Sciences 121: 42-55.


2. Afghah M (2016) Biostratigraphy, facies analysis of Upper Cretaceous–Lower Paleocene strata in South Zagros Basin (Southwestern Iran). Journal of African Earth Sciences 119: 171–184.


3. Afghah M, Dookh R (2014) Microbiostratigraphy of the Sarvak Formation in the east and north easth of Shiraz (Kuh-e-Siah and Kuh-e-Pichakan), Sw of Iran, Journal of Sciences 24: 5-19.


4. Afghah M, Yaghmour S (2014) Biostratigraphy study of Tarbur Formation (Upper Cretaceous) in Tang-E Kushk and east of Sarvestan (SW of Iran). Journal of Earth Science 25: 263–274.


5. Afghah M, Fadaei HM (2014) Biostratigraphy of Cenomanian succession in Zagros area (South west of Iran). Geosciences Journal 19: 257-271.


6. Afghah M, Farhoudi G (2012) Boundary Between Upper Cretaceous and Lower Paleocene in the Zagros Mountain Ranges of  Southwestern Iran, Acta Geologica Sinica 86(2) 325-338. 


7. Afghah M, Shaabanpour Haghighi A (2014) Aptian biostratigraphy in South zagros basin, Southwest Iran. Geoscience Frontiers 5: 277- 288.


8. Aguilera-Franco N (2003) Cenomanian- Coniasian Zonation (Foraminifers and calcareous algae) in the Guerrero- Morelos basin, Southern Mexico. Revista Mexicana de ciencias Geological 20: 202-222.


9. Alavi M (2004) Regional Stratigraphy of the zagros fold- thrust belt of Iran and its proforeland evolution. American Journal of science 304: 1-20.


10. Boudagher-Fadel MK (2015) Biostratigraphic and Geological Significance of Planktonic Foraminifera, UCL Press, 306p.


11. Bozorgnia F (1964) Microfacies and Microorganisms of Paleozoic Through Tertiary Sediments of Some Parts of Iran, National Iranian Oil Company Pub.,  Tehran, 22p.


12. Caron M, Dall’Agnolo S, Accarie H, Barrera E, Kauffman EG, Amédro F, Robaszynski F (2006) High-resolution stratigraphy of the Cenomanian–Turonian boundary interval at Pueblo (USA) and wadi Bahloul (Tunisia): stable isotope and bio-events correlation, Géobios 39: 171-200.


13. Caron M (1985) Cretaceous planktonic foraminifera. In: Bolli HM, Saunders JB, perch-Nielsen, K. (Eds.), plankton Stratigraphy. Cambridge University press, Cambridge, pp. 17-86.


14. Dunham RJ (1962) Classification of Carbonate Rocks According to Depositional Texture. In: Ham, W.E., Ed., Classification of Carbonate Rocks, AAPG, Tulsa: 108-121.


15. Haftlang R (2016) Stratigrapy, Paleontology and Microfacies of Upper Cretaceous Succession in Bahar Section (South Esfahan-Central Iran) and Comparison with Kuh-e- Rahmat and Kuh-e-Sabz sections, north-west and north of Shiraz-Zagros Ph.D. Azad University of Shiraz 290p. 


16. Husinec A, Velić I, Vlahović L, Matićec D, Oštrić N, Korbar T (2000) Mid Cretaceous orbitolinid (Foraminiferida) record from the islands of Cres and Lošinj (Croatia) and its regional stratigraphic correlation, Cretaceous Research 21: 155-171.


17. James GA, Wynd JG (1965) Stratigraphic nomenclature of Iranian oil consortium agreement area, American Association of Petroleum Geologists Bulletin 49: 2182-2245.


18. Kalantari A (1976) Microbiostratigraphy of Sarvestan Area, National Iranian Oil Company pub No.5. 129p. 


19. Khosrow Tehrani Kh, Fonooni B (1994) New findings in Microbiostratigraphy of Sarvak Formation in Fars and Khuzestan areas, Journal of Geosciences 3 (11): 2-15 (in Persian).


20. Leckie RM (1987) Paleoecology of Mid-Cretaceous planktonic foraminifera; a comparison of open ocean and epicontinental sea assemblages. Micropaleontology 33(2): 164-176.


21. Omaña L, Torres JR, Doncel RL, Alencáster G, Caballero IL (2014) A pithonellid bloom in the Cenomanian- Turonian boundary interval from Cerritos in the western Valles–San Luis Potosí platform, Mexico: Paleoenvironmental significance, Revista Mexicana de Ciencias Geológicas 31(1): 28-44.


22. Orabi OH, Osman RA, El Qot GM, Afify AM (2012) Biostratigraphy and stepwise extinctions of the larger foraminifera during Cenomanian (Upper Cretaceous) of Gebel Um Horeiba (Mittla Pass), west-central Sinai, Egypt, Revue de Paléobiologie, Genève 39(2): 303-312. 


23. Premoli Silva I, Verga D (2004) Practical Manual of Cretaceous Planktonic Foraminifera, In: Verga D and Rettori R, (Eds): International School on Planktonic Foraminifera, Universities of Perugia and Milano, Tipografia Pontefelcino, 1- Perugia, 283 pp.


24. Sari B (2006) Upper Cretaceous Planktonic Foraminiferal Biostratigraphy of the Bey Dağlari Autochthon in the Korkuteli Area, western Taurides, Turkey. Journal of Foraminiferal Research 36(3): 241-261.


25. Schroeder R, van Buchem FSP, Cherchi A, Baghbani D, Vincent B, Immenhauser A, Granier B (2010) Revised orbitolinid biostratigraphic zonation for the Barremian – Aptian of the eastern Arabian Plate and implications for regional stratigraphic correlations, GeoArabia Special Publication 4 (1): 49-96.


26. Simmons MD, Whittaker JE, Jones RW (2000) Orbitolinids from Cretaceous sediments of the Middle East – a revision of the F.R.S. Henson and Associates collection, In: Hart, M.B.


27. Wynd JG (1965) Biofacies of the Iranian Oil Consortium Agreement area. Iranian Oil Operating Companies, Geological and Exploration division. Resport No. 1082, 81p. (Unpublished).


28. Yazdi M, Bahrami A, Vega FJ (2009) Albian decapod Crustacea from Southeast Isfahan, Central Iran- Kolah-Qazi area, Bulletin of the Mizunami Fossil Museum 35: 71-77.