Diversity, growth forms and rhodolith distribution: factors controlling the fabric of coralline algae of the early Miocene deposits, Cairo – Suez road, Egypt

Document Type: Research Paper

Author

Department of geology,Faculty of Science,Cairo university, Egypt

Abstract

The Lower Miocene deposits in Gabal Gharra, Cairo – Suez District, unconformably overlies the Oligocene and Eocene deposits. They consist predominantly of regressive and transgressive mixed siliciclastic / carbonate sediments of shallow marine environments. The Lower Miocene deposits are represented lithostratigraphically by the Gharra Formation that comprises four members, from base to top: Agrud, Sadat, Hommath and Genefe members. Two measured sections were described and investigated: Gabal Gharra section and Gabal Agrud section. The coralline red algae are highly abundant in Sadat and Genefe members as fragments, crusts and rhodoliths. Larger foraminifera, corals, echinoids, bivalves, gastropods, bryozoans, benthic and planktonic foraminifers, dasyclades are also present. These two members consist of dolomitized bioclastic packstone, grainstone to floastones / rudstone with rhodoliths (up to 3cm in size). The systematic study led to the recognition of 14 coralline algal species. Lithophyllum sp. dominates the coralline associations at the generic level, followed by Mesophyllum spp, Lithothamnion spp and Spongites spp. The vertical distribution of the coralline red algae in the two concerned sections allowed to subdivide the Lower Miocene sequence into two local coralline algal zones, from base to top: Lithophyllum ghorabi Zone  (including the Sadat Member) and Mesophyllum iraqense Zone (covering the Genefe Member). The rhodoliths populations in the two sections were analyzed in terms of their size, shape, massiveness, symmetry, algal growth forms, algal species diversity, epibionts and borings. These parameters reflect environmental differences between the two studied sections. A comparison of the two the analyzed rhodoliths populations show common features, but also significant differences are recorded. The rhodoliths populations of Gabal Gharra were formed under low energy conditions characterized by porous rhodoliths with higher primary porosity, less frequent epibionts, more boring and thick coralline algal thalli as well as greater asymmetry. On the contrary, in Gabal Agrud the analyzed rhodoliths population was formed in high energy conditions of shallower water marine environments and characterized by more mobile, symmetrical rhodoliths, more frequent epibiont, thin coralline thalli.

Keywords


Article Title [Persian]

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Abdallah, A. M., Abdel Hady, F. M. 1968. Geology of Sadat area, Gulf of Suez. Journal of Geology of the United ArabRepulic, 10 (1): 1 –22.##
Abdel Ghany, O., 2003. Lower Miocene startigraphy of the Gabal Shabrawet area, North Eastern Desert, Egypt. Journal of African Earth Sciences, 34: 203–212##
Abdel Ghany, O., Piller, W. E., Toleiks, R., 1996. Nummulitide Foraminiferen (gattung: Planostegina) im Unter – und##
Mittle Miozaen der Paratethys und des mediterranen Raumes. Sediment96, Sedimenttologentreffen, 1, Wien, 11p.##
Adey, W. H., MacIntyre, I. G., 1973. Crustose coralline algae: A re – evaluation in the geologic sciences. Geological Society of American Bulletin, 84: 883 – 904.##
Al Ahawani, M. M., 1977. Geology and sedimentology of the eastern part of Cairo – Suez district (Agroud area). M. Sc.Thesis, Faculty of Science, Cairo University, 240p.##
Bassi, D., 1995. Curstose Coralline algal pavement from Late Eocene, Colli Berici of Northern Italy. Riv. Italiana Paleont. Strat. , 101: 81 – 92.##
Bassi, D., 1998. Coralline algal facies and their paleoenvironments in the Late Eocene of Northern Italy. Facies, 39: 179– 202.##
Basso, D., Fravega, P., Vanucci, G. 1997. The taxonomy of Lithothaminum ramossimum (Gumbel non Reuss) Conti and Lithothamnium operculatum (Conti) Conti (Rhodophyta, Corallinaceae). Facies, 37: 167 – 182.##
Berggren, W. A., Kent, D. V., Swisher, C. C., Aubry, M. P. 1995. A revised Cenozoic geochronology and
chronostratigraphy. In: Berggren, W. A., Kent, D. V., Aubry, M. P., & Hardenhol, J. Eds. , Geochronology, time scales and Golbal stratigraphic correlation: SEPM Special Publication, 54: 129 – 212.##
Bosence, D. W. J., 1983. Coralline algae from the Miocene of Malta. Paleontology, 26 (1): 147 – 173.
218 Hamad Geopersia, 9 (2), 2019##
Bosence, D. W. J., 1990. Coralline algae: mineralization, taxonomy and paleocology. In: Riding, J. (ed.). Calcareous Algae and Stromatolites. Springer Verlag, Heidelberg.##
Braga, J. C., Martin, J. M., 1988. Neogene coralline red algal growth forms and their paleoenvironments in the
Almanzora river valley (Almeria, Spain). Paleogeogr., Paeoeclimatol., Paleecol., 67: 285 – 305.##
Buchbinder, B., 1987. Systematic and paleoenvironments of the calacreous algae from the Miocene deposits of Israel. Marine Micropaleontology, 42 (2): 321 – 342.##
Capeder, G., 1900. Caperder, Contribuzione alio studio dei Lithothamnion terziari. Malpighia, 14: 172–182, pl. 6.##
Cherif, O. H. 1966. Geology of the Sadat area, southwest of Suez, Egypt. M. Sc. Thesis, Ain Shams, 242p.
Cherif, O. H. 1, Yehia, M. A. 1977. Stratigraphy of the area between Wadi Gimal and Wadi Hommath, Gulf of Suez, Egypt. Egyptian Journal of Geology, 21 (2): 185 – 202.##
Conti, S., 1945. Le Corallinacee del calcare miocenico (Leithakalk) del bacino diVienna.-Inst. Geol. Univ. Genova Pub. Quad., 1-2, ser. A, 1-68##
Edgell, H. S., Basson, P. W., 1975. Calcareous algae from the Miocene of Lebanon. Micropaleontology, 21 (2): 165 –184.##
El Gamal, M. M., 1971. Paleontoloical and Stratigraphical studies on some Miocene reefal facies in Egypt with special emphasis on the calcareous algae. Ph. D. Thesis, Faculty of Science, Cairo University, 209p.##
El Sayed, A. A. Y, Fahmy, S. E., Imam, M. M., 1988. Startigraphy and microfacies of the Miocene sequence at Gabal Sarbut El Gamal, West - Central Sinai, Egypt. N. Jb. Geol. Palaeont. Abh., 177 (2): 225 – 242.##
Farag, I. A. M. & Sadek, A., 1968. Stratigraphy of Gabal Homeira area, Cairo – Suez district. Journal of Geology of the United Arab Repulic, 10 (2): 107 – 124.##
Ghorab, M. A., Marzouk, I. M., 1967. A summary report on the rock stratigraphic classification of the Miocene non – marine and coastal facies in the Gulf of Suez and Red sea coast. Internal Report 601, General Petroleum Company,Cairo.##
Gischler, E., Pisera, A., 1999. Shallow water rhodoliths from Belize reefs. N. Jb. Geol. Palaont. Abh. , 214 (1/2): 71-93,Stuttgart.##
Hamad, M.M. 2008a. Foraminiferal biostratigraphy of Lower Oligocene – Middle Miocene sequence in Banighazi area,Northeastern Libya. Egyptian Journal of Plaeontology, 8: 87 – 111##
Hamad, M. M., 2008b. Coralline red algae from the Lower Miocene Wadi Wizer, Red Sea area, Egypt. International Journal of Algae. 10 (2): 83 -110.##
Hamad. M. M., 2009. Coralline red algae and Foraminiferal biostratigraphy from the Lower Miocene Sadat Formation, Sadat area, Northwest of the Gulf of Suez, Egypt, Egyptian Journal of Paleontology, 9: 183 – 212.##
Hamad. M. M., 2013. Biostratigraphy and paleoecology of the Miocene sequence along the stretch of Qabilt ash Shurfah to Wadi Zaqlum sections, Sirte Basin, Libya. Australian Journal of Basic and Applied Sciences, 7(10): 513-531.##
Hamad, M. M., El Gammal, R., Maryam, N. 2015: Coralline Red Algae from the Lower Miocene Qom Formation, Bagh Section, Northern Isfahan, Iran. Australian Journal of Basic and Applied Sciences, 9(33): 467-480.##
Hamam, K. A. 1966. Stratigraphy and Paleontology of the area south west of Suez. M. Sc. Thesis, Faculty of Science, Ain Shams University, Cairo, 199p.##
Hamza, F. H., 1992. Contribution to the Neogene biostratigraphy of the eastern part of Egypt. Middle East Research Center, Ain Shams University, Earth Science Series 6: 151 – 166.##
Hermina, M., Klitzsch, E., and List, F. K. (1989). Stratigraphic Lexicon and Explanatory Notes on the Geologic map of Egypt 1: 500.000 – Conco Inc., 263p.##
Imam, M. M., 1991. Geological studies on the Miocene sequence in the area between Wadi El Tayiba and Wadi Sidri, West – Central Sinai, Egypt. Unpublished Ph. D. Disseration, Faculty of Science, Cairo University, Egypt, 265p.##
Imam, M. M., 1996. Coralline red algae from the Middle Miocene deposits of Gabal Gushia, West – Central Sinai, Egypt. N. Jb. Geol. Palaont. Abh., 199 (1): 1-15, Stuttgart.##
Imam, M. M., 1997. Planktonic foraminiferal biostratigraphy of the Miocene Sequence in the area between Wadi El Tayiba and Wadi Sidri, West - Cenrtral Sinai, Egypt. Journal of African Earth Sciences, 25 (3): 435 – 451.##
Imam, M. M., 1999a. Lithostratgraphy and planktonic foraminiferal biostratigraphy of the Late Eocene – Middle
Miocene sequence in the area between Wadi Al Zeitun and Wadi Al Rahib, Al Bardia area, northeast Libya. Journal of African Earth Sciences, 28 (3): 619 – 639.##
Imam, M. M., 1999b. Lithostratgrphy, microfacies and depositional environments of the Miocene Sequence in the area between Wadi El Tayiba and Wadi Sidri, west cenrtral Sinai, Egypt. N. Jb. Geol. Palaont. Abh. 7: 409 – 439.##
Imam, M. M., Refaat, A. A., 2000. Stratigraphy and Microfacies analysis of the Miocene Sequence in the area between Gabal Hammam Sayidna Musa and Wadi Abura, southern Sinai, Egypt. N. Jb. Geol. Palaont. Abh. 7: 385 – 409.##
Johnson, J. H. 1964. Miocene coralline algae from northern Iraq. Micropaleontology, 10 (4): 477 – 485.
Johnson, J. H. 1965. Tertiary red algae from Borneo. Bull. British Mus (Natural History), Geology, 11 (6): 257 – 280.##
Kumar, G, Ajanta, S., Suman, S., 2014. Diversity of Middle Eocene Coralline Red Algae from the Prang Limestone Diversity, growth forms and rhodolith distribution: factors controlling … 219 (Shella Formation) of Jaintia Hills, Meghalaya, NE Himalaya, India with special emphasis on palaeoenvironment
Chinese Science Bulletin ·58 Suppl.Ⅰ: 118125##
Kundal, M. P. and Humane, S. K. (2012): Geniculate coralline algae from the Lower Miocene Godhra Formation of the Kachchh offshore basin, western India. Jour. Pal. Soc. India, 57: 143-151.##
Kundal, P., Milind P., Humane, S. K. 2016. Nongeniculate Coralline Algae from Lower Middle Miocene Offshore
Sequence of Kachchh Basin, Western India: Paleoenvironmental Significance. Journal Geological Society of India, 88:39-46.##
Kützing, M., 1841. The crustose Corallinaceae. Oceanogr. Mar. Biol., Ann. Rev., 1: 31-37, table 1.
Lamouroux, M., 1816. Structure anatomique des Melobesiees. Application a laclassification. Monaco, Inst. Oceanogr., Ann., 2 (2): 1-21 5, pls. 1-5, text-figs. 1–105.##
Lemoine, M. P., 1917. Contributionsa I'etude des Corallinacee sfossiles. IV.Surlapresence de Lithophyllum
amphiroaeformis Rothpl. dansI'Albien de Vinport (Landes). Soc. Geol. France, Bull., ser. 4, 17(3-5): 280-283.##
Littler, M. M., Littler, D. S., Hanisak, M. D. 1991. Deep water rhodoliths distribution, productivity, and growth form history at sites of formation and subsequent degradation. Jorunal of Marine Biology and Ecology, 150: 163 – 182.##
Mastrorilli, 1967. Nuovo contribute a110 studio delle Corallinacee dell'Oligocene LiguroPiemontese: i reparti della Tavoletta Ponzone.-Ibidem, 5 (2): 153406.##
Metwalli, M. H. 1963. The study of some Miocene sediments in the Cairo – Suez district- M. Sc. Thesis, Faculty of Science, Cairo University, 198p.##
Montaggioni, L. F. 1979. Environmental significance of the rhodolites from the Mascarene reef province, Western Indian Ocean. Bull. Centr. Rech. Explor. – Prod. Elf Aquitaine, 3: 713 – 723.##
Moussavian, E., Kuss, J., 1990. Typification and status of Lithothamnium aschersonii Schwager, 1883 (Corallinaceae, Rhodophyta) from the Paleocene limestones of Egypt. A contribution to the synonymy and priority of the genera Archeolithothamnium Rothpletz and Sporolithon Hedydrich. Berliner geowissenschaftliche Abhandlungen, 120: 929 –943.##
Nebelsick, J., Kroh, A. 2002. The stormy path from life to death assemblages: The Formation and preservation of Mass accumulations of fossil sand dollars. Palaios, 17: 378 – 393.##
Nebelsick, J., 1992. Echinoid distribution by fragment identification in the Northern Bay of Safaga, Red Sea. Palaios, 7:316 – 328.##
Nebelsick, J., Rasser, M. W., Bassi, D., 2003: The Development of Facies Patterns of Middle Eocene to Lower
Oligocene Circum-Alpine, Shallow Water Carbonate Environments. In: Prothero, D.R. (ed.) Greenhouse to Icehouse:The Marine Eocene-Oligocene Transition (Columbia Univ. Press).##
Rasser, M. W. & Piller, W. E., 2004. Crustose algal frameworks from the Eocene Alpine Foreland. Paleogeography, Paleoclimatology, Paleoecology, 206: 21–39.##
Rasser, M., Piller, W. E., 1994. Re- documentation of Paleocene coralline red algae of Austria, described by Lemoine (1930). Beitrage zur Palaontologie, 19: 219 – 225.##
Renema, W., Warter, V., Novak, V., Young, Y., Marshall, N., Hasibuan, F., 2015: Age of Miocene fossil localities in the Northern Kutai Basin (East Kalimantan, Indonesia): Palaios, 30: 26–39.##
Rosler, A; Vedrana, P., Novak, V., Willem, R. & Braga, J. C., (2015): Coralline algae from the Miocene Mmahakam Delta (East Kaliman tan, Southea st Asia), Palaios, 30: 83–93##
Sadek, H. 1959. The Miocene in the Gulf of Suez region, Egypt. Geological Survey of Egypt. 8: 1 – 18.##
Said, R., 1990. Cenozoic. In: Said, R. (Ed.), the Geology of Egypt. A. A. Balkema, Rotterdam, pp. 451 – 486.##
Said, R., Metwalli, H., 1966. Foraminifera of some Miocene sediments of the Cairo – Suez District – Egyptian Journal of Geology, 7 (1): 29 – 65.##
Souaya, F. J. 1963a. On the Foraminifera of Gabal Gharra (Cairo – Suez District) and some other Miocene samples, Journal of Paleontology, 37 (2): 433 – 457##
Souaya, F. J. 1963b. Micropaleontology of four sections south of Qusier, Egypt, Micropaleontology, 9 (3): 233 – 266.##
Souaya, F. J. 1963c. On the calcareous algae (Melobesoideae) of Gabal Gharra (Cairo – Suez District) with local zonation and some possible correlations. Journal of Paleontology, 37 (6): 1204 – 1216.##
Steneck, R. S., 1985. Adapation of crustose coarlline algae to herbivory: patterns in space and time, In: Toomey, D. F. & Nitecki, M. H. (eds.), Paleoalgology Contemporary research and applications, 352 – 366, Springer Verlag, Berlin.##
Verhij, E. 1993. The genus Sporolithon (Sporolithaceae fam. Nov., Corallinales, Rhodophyta) from the Spermonde Archipelago, Indonesia. Phycologia, 32: 148 – 196.##
Wehrmann, A., Freiwals, A. & Zanki, H. 1995. Formation of cold – temperature water multispecies rhodoliths in
intertidal gravel pools from Northern Brittany, France. Senckenbergiana maritima 26 (1&2): 51 – 71. Frankfurt.
Wettstein, V. A., 1901. The Corallinaceae of the Siboga Expedition. Siboga Exped., Monogr., 61: 1-110, pls. 1–16.##
Woelkerling, W. J. 1988. The Coralline Red Alage: An Analysis of the Genera and subfamilies of the Nongeniculate Corallinaceae. Oxford University Press, 268pp. 220 Hamad Geopersia, 9 (2), 2019##
Woelkerling, W. J., Irvine, L. M., Harvey, A. S., 1993. Growth forms in non - geniculate coralline red algae
(Corallinales, Rhodophyta). Austeralian Systematical Botany, 6: 277 –293.##
Wray, J. L., 1977. Calcareous algae. Elsevier Pub. Company, Amsterdam. 185pp.##