Palynofacies analysis and palaeoenvironmental interpretation of the upper cretaceous sediments, Shushan Basin, northern western desert, Egypt | ||||
| Sohag Journal of Sciences | ||||
| Volume 7, Issue 2, May 2022, Page 77-87 PDF (1.27 MB) | ||||
| Document Type: Regular Articles | ||||
| DOI: 10.21608/sjsci.2022.234251 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Magdy S. Mahmoud1; Amr S. Deaf1; Miran M. Khalaf* 2 | ||||
| 1Geology Department, Faculty of Science, Assiut University, Assiut, 71516, Egypt | ||||
| 2Geology Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt | ||||
| Abstract | ||||
| The purpose of this research is to investigate the palynofacies analysis and palynomorph assemblages of the Salam-53 well, Shushan Basin, north-western Desert, Egypt to show the shelf conditions throughout the Upper Cretaceous deposits, where two palynofacies types have been documented based on the properties components of palynofacies of the studied ditch cutting samples. PF-1, the upper Bahariya clastic-carbonate layer, and the Abu Roash "G" as well as "F" to "C" members were discovered in the inner shelf setting, marine transgression occurs at the late Cenomanian-Turonian dominated by reducing (suboxic-anoxic) settings with occasional local oxic-dysoxic conditions. The global late Cenomanian marine transgression was primarily responsible for this relative sea level rise. PF-2 represents the remainder of the carbonate section ("B" and "A" members) of the Abu Roash and Khoman formations, which were deposited in middle shelf environments with prominent suboxic-anoxic conditions during a major regional marine transgression, which was primarily associated with the global Turonian-Maastrichtian eustatic sea-level rise. Furthermore, palynofacies analyses were used to reconstruct the vegetation cover and palaeoclimatic conditions at these times, indicating that regional warm and relatively dry climatic conditions prevailed. This based on the presence of Afropollis jardinus, Classopollis spp., Ephedripites spp., Elaterspores, and pteridophytes, indicating a paleoenvironment in which parent plants inhabiting wetlands in a humid condition, developed near the well site. | ||||
| Keywords | ||||
| Palynofacies; paleoenvironment; paleoclimate; Cretaceous; Shushan Basin; Egypt | ||||
| References | ||||
|
[1] El Diasty, W.S.; El Beialy, S.Y.; Littke, R.; Farag, F.A.; Source rock evalu-taion and nature of hydrocarbons in the Khalda Concession, Shushan Basin,Egypt’s Western Desert. International Journal of Coal Geology, 2016, 162, 45–60.
[2] Shalaby, M. R.; Hakimi, M. H.; Abdullah, W. H.; Modeling of gas generation from the Alam 1 El-Bueib Formation in the Shoushan Basin, northern Western Desert of Egypt. Int J Earth Sci., 2013, 102:319-332.
[3] Dolson, J. C.; Shann, M. V.; Matbouly, S.; Harwood, C.; Rashed, R.; Hammouda, H.; AAPG Memoir 74, Chapter 23: The Petroleum Potential of Egypt, 2001, 453–482.
[4] Ibrahim, M. I. A.; Late Albian-middle Cenomanian palynofacies and palynostratigraphy, Abu Gharadig-5 well, Western Desert, Egypt. Cretaceous Research, 2002, 23:775-788.
[5] Mahmoud, M. S.; Moawad, A. M. M.; Cretaceous palynology of the Sanhur-1X borehole, northwestern Egypt. Rev Esp Micropaleontol, 2002, 34:129–143.
[6] El-Beialy, S. Y.; El Atfy, H. S.; Zavada, M. S.; EL Khoriby, E. M.; Abu-Zied, R. H.; Palynological, palynofacies, paleoenvironmental and organic geochemical studies on the Upper Cretaceous succession of the GPTSW-7 well, North Western Desert, Egypt. Marine and Petroleum Geology, 2010, 27:370–385.
[7] ZOBAA, M. K., El Beialy, S. Y.; El-Sheikh, H. A.; El Beshtawy, M, K.; Jurassic–Cretaceous palynomorphs, palynofacies, and petroleum potential of the Sharib-1X and Ghoroud-1X wells, north Western Desert, Egypt. Journal of African Earth Sciences, 2013, 78: 51–65.
[8] Guiraud, R.; Bosworth, W.; Phanerozoic geodynamic evolution of north-eastern Africa and the north-western Arabian platform. Tectonophysics, 1999, 315:73–108.
[9] Said, R. The geology of Egypt. Elsevier, Amsterdam, 1962, 377 p.
[10] Hantar, G.; North Western Desert. In: Said R, editor. The Geology of Egypt. Rotterdam: Balkema; 1990, 293–319.
[11] Norton, Rock Stratigraphic Nomenclature of the Western Desert. Internal Report. Pan American Oil Company, UAR, Cairo, Egypt, 1967.
[12] Schlumberger, The western desert. Schlumberger well Evolution Conference, Egypt, 1984, 1, 19-1-44.
[13] Abdel-Kireem, M. R.; Ibrahim, M. I.; Late Cretaceous biostratigraphy and paleobathymetry of the Betty well no. 1, Western Desert, Egypt. IN: MATHEIS, G.& SCHANDELMEIER, H. (Eds.), Current Research in African Earth Sciences. Balkema, Rotterdam, 1987, 165–169.
[14] El Beialy, S.Y.; Mid-Cretaceous palynomorphs from the Bardawil-1borehole, North Sinai, Egypt. Creteaceous Research, 1993, 14:49–58.
[15] El Beialy, S.Y.; Palynostratigraphy and palynofacies analysis of some subsurface Cretaceous formations in the Badr El Dein (Bed 1-1) borehole, north Western Desert, Egypt. Neues Jahrbuch für Geologie und Paläontolo-gie Abhandlungen, 1994, (2), 192:133–149.
[16] Tahoun, S. S.; Mohamed, O.; Palynology and genetic sequence stratigraphyof the reservoir rocks (Cenomanian, Bahariya Formation) in the Salam OilField, north Western Desert, Egypt. Cretaceous Research, 2013, 45:342–351.
[17] Tahoun, S. S.; Makled, W. A.; Mostafa, T. F.; Stratigraphical distribu-tion of the palynomorphs and the particulate organic matter in subsurface Lower/Middle Cretaceous deposits, Western Desert of Egypt: Palynologicaland geochemical approach. Egyptian Jouranl of Petroleum, 2013, 22:435–449.
[18] Schrank, E.; Ibrahim, M. I. A.; Cretaceous (Aptian - Maastrichtian) palynology of foraminifera dated wells (KRM - 1, AG - 18) in northwestern Egypt. Berl. Geowiss. Abh. A, 1995, 177: 1 – 44.
[19] Ibrahim, M. I. A.; Dilcher, D.; Kholeif, S. E.; Palynomorph succession andpaleoenvironment in the Upper Cretaceous Abu Gharadig Oil Field, North-western Desert, Egypt. Micropaleontology, 2009, 55:525–558.
[20] EL-Beialy, S. Y.; El-Soughier, M. I., Abdel-Mohsen, S.; El-Atfy, H. S.; Palynostratigraphy and paleoenvironmental significance of the Cretaceous succession in the Gebel Rissu-1 well, north Western Desert, Egypt. Journal of African Earth Sciences, 2011, 59:215-226.
[21] Tahoun, S. S.; Palynostratigraphical and paleoenvironmental significanceof a palynomorph assemblage from the Cenomanian of North WesternDesert, Egypt. Egyptian Journal of Paleontology, 2012, 12:73–95.
[22] Deaf, A. S.; Harding, I. C.; Marshall, J. E. A.; Cretaceous (Albian? early San-tonian) palynology and stratigraphy of the Abu Tunis 1x borehole, northernWestern Desert, Egypt. Palynology, 2014, 38:51–77.
[23] El-Soughier, M. I.; Deaf, A. S.; Mahmoud, M. S.; Palynostratigraphy andpalaeoenvironmental significance of the Cretaceous palynomorphs in theQattara Rim-1X well, North Western Desert, Egypt. Arabian Journal of Geosciences, 2014, 7:3051–3068.
[24] Dominik W. Stratigraphie und Sedimentologie (Geochemie, Schwer- mineralanalyse) der Oberkreide von Bahariya und ihre Korrelation zum Dakhla-Becken, Western Desert, Ägypten. Berliner Geowissenschaftliche Abhandlungen - Reihe A, 1985, 62: 1-173.
[25] Said, R. Cretaceous paleogeographic maps. IN Said, R. (Ed.) The Geology of Egypt, Rotterdam, Balkema, 1990, 439-449.
[26] Catuneanu, O.; Khalifa, M. A.; Wanas, H. A.; Sequence stratigraphy of the Lower Cenomanian Bahariya Formation, Bahariya Oasis, Western Desert, Egypt.– Sediment. Geol., 2006, 190:121–137. doi:10.1016/j.sedgeo.2006.05.010.
[27] Mahmoud M. S.; Deaf, A. S.; Cretaceous palynology (spores, pollen and dinoflagellate cysts) of the Siqeifa 1-X borehole, northern Egypt. Riv Ita Paleontol Stratigr., 2007, 113:203–221.
[28] Beadnell, H. J. I.; The Cretaceous Region of Abu Roash, near the Pyramids of Giza. Report. Giza, Egyptian Survey Department, 1902, 48 pp.
[29] Akkad, S. E.; Issawi, B.; Geology and iron ore deposits of Bahariya Oasis. Geological Survey of Egypt Paper, 1963, 18: 1-300.
[30] Kerdany, M. T.; Cherif, O. H.; Mesozoic. IN SAID, R. (Ed.) The Geology of Egypt. Rotterdam, Balkema, 1990.
[31] Traverse, A., Paleopalynology. Second Edition, Springer, 2007, 1–813.
[32] Tyson, R.V.; Sedimentary organic matter-Organic facies and palynofacies. Chapman and Hall, London, 1995.
[33] Tyson, R. V.; Palynofacies analysis. IN: JENKINS, D. G. (Ed.) Applied Micropaleontology. Kluwer Academic Publisher, Dordrecht, 1993, 153–191.
[34] Deaf, A. S.; Palynology, palynofacies and hydrocarbon potential of the Cretaceous rocks of northern Egypt. Published Ph.D. Thesis, Southampton University, 2009, 348 pp.
[35] Alaug, A. S.; Mahmoud, M. S.; Deaf, A. S.; AL-Ameri, T. K.; Palynofacies, organic geochemical analyses and hydrocarbon potential of some Upper Jurassic-Lower Cretaceous rocks, the Sabatayn-1 well, Central Yemen. Arabian Journal of Geosciences, 2014, 7:2515–2530.
[36] Tahoun, S. S.; Deaf, A. S.; Could the conventionally known Abu Roash “G” reservoir (upper Cenomanian) be a promising active hydrocarbon source in the extreme northwestern part of Egypt? Palynofacies, palaeoenvironmental, and organic geochemical answers. Marine and Petroleum Geology, 2016, 76:231–245.
[37] Batten, D. J.; Identification of amorphous sedimentary organic matter by transmitted light. IN BROOKS, J. (Ed.) Petroleum Geochemistry and Exploration of Europe. Geological Society of London, Special Publication, 1983.
[38] Lister, J. K.; Batten, D. J.; Stratigraphic and paleoenvironmental distribution of early Cretaceous dinoflagellate cysts in the Hurlands Farm Borehole, West Sussex, England. Palaeontographica Abteilung B, 1988, 210:8-89.
[39] Davey, R. J.; Rogers, J.; Palynomorph distribution in Recent offshore sediments along two traverses off South West Africa. Marine Geology, 1975, 18:213–225.
[40] Dale, B.; Dinoflagellate resting cysts: “benthic plankton”. In: Fryxell, G.A. (Ed.), Survival Strategies of the Algae. Cambridge University Press, Cambridge, 1983, 69–136.
[41] Leckie, D. A.; Singh, C., Estuarine deposits of the Albian Paddy Member (Peace River Formation) and lowermost Shaftesbury Formation, Alberta, Canada. Journal of Sedimentary Petrology, 1991, 61: 825–849.
[42] Stancliffe, R. P. W.; Microforaminiferal linings: their classification, bios-tratigraphy and paleoecology, with special reference to specimens fromBritish Oxfordian sediments. Micropaleontology, 1989, 35:337–352.
[43] Batten, D. J.; Palynofacies and petroleum potential. In I. Jansonius and D.C. McGreger (Eds.), Palynology: Principles and Applications. American Association of Stratigraphic Palynologists Foundation, 1996, 3:1065-1084.
[44] Hughes, N. F.; Moody-Stuart, J. C.; Palynological facies and correlation inthe English Wealden. Review of Palaeobotany and Palynology, 1967, 1:259–268.
[45] Batten, D. J.; Wealden palaeoecology from the distribution of plant fossils. Proceedings of the Geologists’ Association, 1974, 85:433–458.
[46] Einsele, G.; Sedimentary basins: evolution, facies, and sediment budget.Springer-Verlag, Berlin, 1992, 628 pp.
[47] Roncaglia, L.; Kuijpers, A.; Revision of the palynofacies model of Tyson (1993) based on recent high-latitude sediments from the North Atlantic. Facies, 2006, 52:19–39.
[48] AL-Ameri, T. K.; Al-Najar, T. K.; Batten, D. J.; Palynostratigraphy and Palynofacies indications of depositional environments and source potential for hydrocarbons: the Mid Cretaceous Nahr Umr and lower Mauddud formations, Iraq. Cretaceous Research, 2001, 22: 732–742.
[49] Hofmann, C. C.; Zetter, R.; Reconstruction of different wetland plant habi-tats of the Pannonian Basin system (Neogene, Eastern Austria). Palaios, 2005, 20:266–279.
[50] Vallejo, C.; Hochuli, P. A.; Winkler, W.; Von Salis, K.; Palynological andsequence stratigraphic analysis of the Napo Group in the Pungarayacu 30well, Sub-Andean Zone, Ecuador. Cretaecous Research, 2002, 23:845–859.
[51] Carvalho, M. A.; Filho, J. G. M.; Menezes, T. R.; Paleoenvironmental recon-struction based on palynofacies analysis of the Aptian–Albian successionof the Sergipe Basin, Northeastern Brazil. Marine Micropaleontology, 2006, 59:56–81.
[52] Dooley, J. H.; Glauconite. In: Kogel, J. E., Trivedi, N.C., Barker, J.M., Krukowski, S.T. (Eds.), Industrial Minerals and Rocks, 7th ed. Society of mining and metal exploration, Littleton, 2006, 495–506.
[53] Vail, P. R.; Mitchum, J. R. M.; Thompson, S.; Seismic stratigraphy andglobal changes of sea level, Part 4: global cycles of relative changes ofsea level. Seismic Stratigraphy: Application to Hydrocarbon Exploration. American Association of Petroleum Geologists Memoirs, 1977, 26:83–97.
[54] Guiraud, R.; Issawi, B.; Bosworth, W.; Phanerozoic history of Egypt andsurrounding areas. In: Ziegler, P.A., Cavazza, W., Robertson, A.H., Crasquin-Soleau, S. (Eds.), Peri-Tethys Memoir 6: Peri-Tethyan Rift/Wrench Basins and Passive Margins, 2001, 186:469–509.
[55] Harding, I. C.; An Early Cretaceous dinocyst assemblage from the Wealdenof southern England. Palaeontological Special Paper, 1986, 35: 95–109.
[56] Dow, W. G.; Pearson, D. B.; Organic matter in Gulf coastal sediments. Offshore Technology Conference, Dallas, 1975.
[57] Bujak, J. P.; Barss, M. S.; Williams, G. L.; Offshore east Canada's organic type and color and hydrocarbon potential. The Oil and Gas Journal, 1977, 75: 198-201.
[58] Nichols, G.; Sedimentology and Stratigraphy, 2nd Ed. Wiley-Blackwell, Chichester, UK, 2009.
[59] Hamza, H.; Obaje, N. G.; Obiosio, E. O.; Foraminiferal Assemblage and Paleoenvironment of the Fika Shale, Bornu Basin, Northeastern Nigeria. Journal of Mining and Geology, 2002, 38: 49-55.
[60] Schrank, E.; Mahmoud, M. S.; Palynology (pollen, spores and dinoflagellates) and Cretaceous stratigraphy of the Dakhla Oasis, central Egypt. Journal of African Earth Sciences, 1998, 26: 167-193.
[61] Schrank, E.; Paleoecological aspects of Afropollis/elaterate peaks (Albian- Cenomanian pollen) in the Cretaceous of Northern Sudan and Egypt. IN: Goodman, D.K., Clarke, R.T. (Eds.) Proceeding of the IX International Palynological Congress, Houston, Texas, 1996. American Association of Stratigraphic Palynologists Foundation, 2001.
[62] Watson, J.; The Cheirolepidiaceae. In: Beck, C.B. (Ed.), Origin and Evolution of Gymnosperms. Columbia University Press, New York, 1988, 382-447.
[63] Doyle, J. A.; The rise of angiosperms as seen in the African Cretaceous pollen record. In: Heine K. (Ed.), Proceedings of the 3rd Conference on African Palynology, Johannesburg 14-19 September 1997, Palaeoecology of Africa and the Surrounding Islands, Rotterdam: A.A. Balkema, 1999, pp. 3–29.
[64] Herngreen, G. F. W.; Kedves, M.; Rovnina, L. V.; Smirnova, S. B.; Cretaceous palynofloral provinces: a review. In: Jansonius, J., McGregor, D.C. (Eds.) Palynology: Principles and Applications. Texas. American Association of Stratigratigraphic Palynologists Foundation, 1996, 3:1157-1188.
[65] Aboul Ela, N. M.; Shaw, D.; Ragab, S. E.; Palynostratigraphy of the Bahariya Formation in the subsurface of the Salam Oil Field, north Western Desert, Egypt. Proceeding 13th Petroleum Conference, Cairo Egypt, 1996, 1: 381-400.
[66] Schrank, E.; Nesterova, E. V.; Palynofloristic changes and Cretaceous climates in northern Gondwana (NE Africa) and southern Laurasia. In: Geoscientific Research in Northeast Africa. Ed. Thorweihe and Schandelmeier, 1993, 381 – 390.
[67] Shalaby, M. R.; Hakimi, M. H.; Abdullah, W. H.; Petroleum system analysisof the Khatatba Formation in the Shoushan Basin, north Western Desert, Egypt. Arabian Journal of Geosciences, 2014, 7:4303–4320.
[68] KPC. Unpublished internal final report and mud and wireline geophysicallogs of the Salam-53 well, 2005. | ||||
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