The sedimentary system of beaches and dune fields of the coast of Essaouira (Atlantic Morocco)
- Lharti, Saadia
- Flor-Blanco, Germán 2
- Flor Rodríguez, German Santos 1
- 1 Universidad de Oviedo (jubilado)
-
2
Universidad de Oviedo
info
ISSN: 0214-1744
Year of publication: 2022
Volume: 36
Issue: 1-2
Pages: 105-127
Type: Article
More publications in: Cuaternario y geomorfología: Revista de la Sociedad Española de Geomorfología y Asociación Española para el Estudio del Cuaternario
Abstract
The central Atlantic coast of Morocco is constituted by dissipative kilometer-long sand beaches and associated complex dunes, mainly artificially fixed. It can be sectorized into three segments from the city of Essaouira to the N and to the S. Sediment characterization of beaches and aeolian dune belts is established from the grain-size parameters, and the bioclastic component, including their relation to the average grain size, the distribution through the coarser to finer sizes, and main biological groups. With these data it is possible to deduce qualitatively the longitudinal and transverse sedimentary transfers of sand as part of the littoral drift, and from it to the adjacent dune fields, respectively.
Bibliographic References
- Citas Allam, M., Houmimyd, M. (1990). Étude de la protection contre l´ensablement de la liaison routière entre Moulay Bouzarktoun et Essaouira. Rapport du Service Forestière d’Essaouira, 65 p.
- Allen, J.R.L. (1984). Modes of sediment transport and particle motion. Sedimentary structures, their character and physical basis. Developments in Sedimentology, 30, 88-95. Elsevier.
- Aouiche, I. (2016). Dynamique morphosedimentaire de la baie d’Agadir. Approche multi-metodes et preconisations pour une gestión integrée de la zone côtière. Thése de Doctorat, Faculté des Sciences, Université Cadi Ayyad, Marrakech, 238 p.
- Bagnold, R.A. (1941). The physics of blown sand and desert dunes. William Morrow and Co N.Y., 265 p.
- Benavente, J., Gracia, F.J., Anfuso, G., Lopez-Aguayo, F. (2005). Temporal assessment of sediment transport from beach nourishments by using foraminifera as a natural tracer. Coastal Engineering, 52, 205-219. https://doi.org/10.1016/j.coastaleng.2004.12.002
- Bird, E.C. (2008). Coastal geomorphology: an introduction. New York, John Wiley & Sons, 436 p.
- Blott, S.J., Pye, K. (2000). A grain size distribution and statistics package for the analysis of unconsolidated sediment´s. Earth Surface Processes and Landforms, 25, 1473-1477.
- Bone, Y., Deer, L., Edwards, S. A., Campbell, E. (2006). Adelaide Coastal Waters Study-Sediment Budget. ACWS Technical Report No. 16. Adelaide Coastal Waters Study Steering Committee, March 2007. Adelaide University, Department of Geology, 86 p.
- Chave, K.E. (1960). Carbonate skeletons to limestones: problems, Transactions of the New York Academy of Science, 23, 14-24. https://doi.org/10.1111/j.2164-0947.1960.tb01341.x
- Clemmensen, L.B. (1993). Short Course Notes. Copenhagen, Denmark: Geologisk Institut, Kobenhavns Universitet, 48 p.
- De Muro, S., Ibba, A., Kalb, C. (2016). Morpho-sedimentology of a Mediterranean microtidal embayed wave dominated beach system and related inner shelf with Posidonia oceánica meadows: the SE Sardinian coast. Journal of Maps, 12, 3, 558-572. https://doi.org/10.1080/17445647.2015.1051599
- DNSLE (2006). Débat nacional sur l’eau. Bassin hydraulique du Tensift. Agence du Bassin Hydraulique du Tensift, Royaume de Maroc, 24 pp. (http://www.matee.gov.ma/dne/documents/doc%20bassins/Tensift.pdf). P-51.
- Du, X., Gama, C., Liu, J.T., Baptista, P. (2015). Sediment sources and transport pathway identification based on grain-size distributions on the SW Coast of Portugal. Terrestrial, Atmospheric and Oceanic Science, 26 (4), 397-409. https://doi.org/10.3319/TAO.2015.03.30.01(TT)
- El Mimouni, A. (2009). Approche expérimentale de suivi de la dynamique morphosédimentaire du littoral d’Essaouira, Maroc: Implication pour un aménagement raisonné. Thèse de Doctorat, Université du Littoral, Côte d’Opale, Dunkerque, France, 259 p.
- El Mimouni, A., Daoudi, L. (2012). Evolution à moyen terme du contexte hydrodynamique et morphosédimentaire la baie d’Essaouira (Maroc atlantique). Actas XIIèmes. Jour. Nat. Génie Côtier-Génie Civil, Cherbourg, 273-280. Editions Paralia CFL. https://doi.org/10.5150/jngcgc.2012.028-E
- El Mimouni, A., Daoudi, L., Anthony, E. (2014). Morphological change on a wadi-influenced beach: Essaouira, Morocco. Les littoraux méditerranéens: états passés, actuels et futurs, 20 (3), 243-250. https://doi.org/10.4000/geomorphologie.10682
- Flor, G. (1978). Relación entre la distribución de sedimentos y la circulación costera en la región del Cabo Peñas. Trabajos de Geología, 10, Univ. Oviedo, 183-194.
- Flor, G. (1981). Las dunas eólicas costeras de la playa de Xagó (Asturias). Trabajos de Geología, 11, Univ. Oviedo, 61-71.
- Flor, G., Flor Blanco, G. (2009). Sedimentología de los depósitos arenosos superficiales de la playa de Vega (Concejo de Ribadesella, Asturias). Revista de la Sociedad Geológica de España, 22 (1-2), 105-121.
- Flor, G., Llera, E. Mª, Ortea, J.A. (1982). Los carbonatos biogénicos de los sedimentos de las playas arenosas de Asturias y Cantabria: su origen y significado dinámico. Cuaderno del CRINAS, 2, 77 p.
- Flor-Blanco, G., Flor, G., Lharti, S., Pando, L. (2013). Morphological characteristics and sand volumes of different coastal dune types in Essaouira Province, Atlantic Morocco. Geo-Marine Letters, 33 (2-3), 101-115. https://doi.org/10.1007/s00367-012-0318-7
- Folk, R.L., Ward, W.C. (1957). Brazos River bar: a study in the significance of grain size parameters. Journal of Sedimentary Petrology, 27, 3-26. https://doi.org/10.1306/74D70646-2B21-11D7-8648000102C1865D
- Gao, S., Collins, M. (1992). Net sediment transport patterns inferred from grain-size trends, based upon definition of “transport vectors”. Sedimentary Geology, 81, 47-60. https://doi.org/10.1016/0037-0738(92)90055-V
- Gao, S., Collins, M. (1995). Net sand transport direction in a tidal inlet, using foraminiferal tests as natural tracers. Estuarine, Coastal and Shelf Science, 40, 681-697. https://doi.org/10.1006/ecss.1995.0046
- Gómez-Pujol, L., Roig-Munar, F.X., Fornós, J.J., Balaguer, P., Mateu, J. (2013). Provenance-related characteristics of beach sediments around the island of Menorca, Balearic Islands (western Mediterranean). Geo-Marine Letters, 33, 195-208. https://doi.org/10.1007/s00367-012-0314-y
- Guza, R.T., Thornton, E.B., Holman, R.A. (1984). Swash on steep and shalow beaches. Coastal Engineering, 1 (19), 48, 708-723. https://doi.org/10.9753/icce.v19.48
- Haida, S., Snoussi, M., Latouche, C., Probst, J.-L. (1996). Géodynamique actuelle du bassin versant de l’Oued Tensift (Maroc): érosion mécanique et bilan des transports solides fluviaux. Sciences Géologiques Bulletin, 49 (1-4), 7-23. https://doi.org/10.3406/sgeol.1996.1933
- Hemminga, M.A., Duarte, C.M. (2000). Seagrass Ecology. Cambridge Univ. Press, Cambridge, 298 p. https://doi.org/10.1017/CBO9780511525551
- Jaffar, M. (2012). Caractérisation des différents aspects de dégradation du réseau d’assainissement à Essaouira «Maroc»: analyse des contraintes naturelles et anthropiques imposées au réseau. Mémoire de Stage de Fin d’Études, Master Sciences et Techniques, Faculté des Sciences et Techniques, Université Cadi Ayyad, Marrakech, Maroc, 126 p.
- Kilibarda, Z., Venturelli, R. Goble, R. (2014). Late Holocene dune development and shift in dune-building winds along southern Lake Michigan. En: T.G. Fisher, E.C. Hansen, (Eds.), Coastline and dune evolution along the Great Lakes. The Geological Society of America, Special Paper 508, 47-64. https://doi.org/10.1130/2014.2508(04)
- Kwarteng, A.Y., Al-Hatrushi, S.M., Illenberger, W.K., McLachlan, A. (2016). Grain size and mineralogy of Al Batinah beach sediments, Sultanate of Oman. Arabian Journal of Geoscience, 9, 557. https://doi.org/10.1007/s12517-016-2583-7
- Lahmadi, L. (2013). Rôle des crues de l’Oued Ksob dans le maintien de l’équilibre dynamique et morphosédimentaire du littoral d’Essaouira (Maroc). Mémoire de Stage de Fin d’Étude, Faculté des Sciences et Techniques, Université Cadi Ayyad, Marrakech, Maroc, 126 p.
- Martínez Cedrún, P., Flor, G., Flor-Blanco, G., Fernández Maroto, G. (2014). Composición mineralógica de los sistemas de playa/duna en una costa rocosa: caso de Cantabria (NO de España). Revista de la Sociedad Geológica de España, 27 (2), 13-27.
- Martins, L.R. (2003). Recent sediments and grain-size analysis. Gravel, 1, 90-105.
- Mckee, E.D. (1979). Introduction to a study of global sand seas. En: E.D. Mckee, (Ed.), A Study of Global Sand Seas. U.S. Geological Survey Professional Paper 1052, 1-19. https://doi.org/10.3133/pp1052
- McLaren, P. (1981). An interpretation of trends in grain size measures. Journal of Sedimentary Research, 51, 611-624. https://doi.org/10.1306/212F7CF2-2B24-11D7-8648000102C1865D
- McLaren, P., Bowles, D. (1985). The effects of sediment transport on grain-size distributions. Journal Sedimentary Research, 55, 457-470. https://doi.org/10.1306/212F86FC-2B24-11D7-8648000102C1865D
- Mellas, S. (2012). Evaluation du risque de tsunamique sur le littoral atlantique marrocain. Histoire. Thése de Doctorat d’État. Université Paul Valéry - Montpellier III. Francia et Université Chouaib Doukkali El Jadida. 264 p. https://tel.archives-ouvertes.fr/tel-00826963/file/2012_mellas_1_these.pdf
- Middleton, G.V. (1976). Hydraulic interpretation of sand size distributions. Journal Geology, 84, 405-426. https://doi.org/10.1086/628208
- Pedreros, R., Howa, H.L., Michel, D. (1996). Application of grain size trend analysis for the determination of sediment transport pathways in intertidal areas. Marine Geology, 135, 35-49. https://doi.org/10.1016/S0025-3227(96)00042-4
- Pilkey O., Morton, R.W., Luternauer, J. (1967). The carbonate fraction of beach and dune sands. Sedimentology, 8, 311-327. https://doi.org/10.1111/j.1365-3091.1967.tb01330.x
- Puleo, J.A., Torres-Freyermurth, A. (2016). The second international workshop on swash-zone processes. En: G. Ruessink, (Ed.), Swash-zone Processes. Coastal Engineering, 115, 1-7. https://doi.org/10.1016/j.coastaleng.2015.09.007
- Rojas, E.M., Le Roux, J.P. (2003). Determinación de vectores de transporte, utilizando información granulométrica: Aplicación al delta tipo Gilbert, del río Pescado, Lago Llanquíhue, X Región, Chile. X Congreso Geológico Chileno, Sociedad Geológica de Chile, Comunicaciones, Santiago (CD-ROM). https://biblioteca.sernageomin.cl/opac/DataFiles/RojasE_y_LeRouxJ.pdf
- Sharp, R.P. (1966). Kelso dunes, Mojave Desert, California. Geological Society of America Bulletin, 77 (10), 1045-1073. https://doi.org/10.1130/0016-7606(1966)77[1045:KDMDC]2.0.CO;2
- Simone, C. (2000). Le géosysteme dunaire dunaire anthropizé d’Essaouira-est (Maroc Atlantique). Dynamique et paleoenvironnements. Thése de Doctorat, Université Aix-Marseille, France, 204 p.
- Sulzlee, C. (1963). Les dunes de Essaouira. Revue Forestière Française, 5, 401-418. https://doi.org/10.4267/2042/24550
- Tanner, W.F. (1991). Suite statistics: the hydrodynamic evolution of the sediment pool. En: J.P.E. Syvitski, (Ed.), Principles, Methods and Application of Particle Size Analysis, 225-236. Cambridge University Press, N.Y. https://doi.org/10.1017/CBO9780511626142.021
- Ungar, J.E., Haff, P.K. (1987). Steady state saltation in air. Sedimentology, 34, 289-299. https://doi.org/10.1111/j.1365-3091.1987.tb00778.x
- van Rijn, L.C. (2018). Aeolian Transport over a Flat Sediment Surface. 33 p. www.leovanrijn-sediment.com.
- Vieira, L.R.S., Manso, C.L.C. (2017). Textural and compositional variations in beach sands along south Alagoas coast, Brazil. Revista da Gestão Costeira Integrada, 17(2), 139-149. https://doi.org/10.5894/rgci-n99
- Weisrock, A. (1980). Géomorphologie et paléo-environnements de l´Atlas atlantique (Maroc). Thèse Doctorat d´État, Univ. Paris I, 931 p.