Seafloor morphosedimentology in the entrance sector of Bahia Blanca estuary, Argentina
Keywords:
Bedforms, Sediments, Paleocoasts, HoloceneAbstract
In the large Bahia Blanca estuarine system (province of Buenos Aires) there are sectors without a comprehensive assessment of submarine morpho-sedimentological features. Within this context, in this paper the seabed along the north coast of the entrance to the Principal channel of the estuary is studied. Acoustic surveys (echo sounder and side scan sonar) and sediments sampling were performed. The presence of depositional and erosional geoforms was determined. Among those of accretional nature have been established different types of dunes and sand ribbons. The erosive forms are scarps, relatively continuous and irregular, and rocky isolated outcrops. Also, seabed cohesive sediments, both massive and stratified, were differentiated. As anthropogenic forms furrows dredging and the presence of pipes for oil and metal debris were distinguished. The analysis of geoforms and sediments determined that in the east sector of the coastal strip studied prevails sediment transport as bedload towards the Continental Shelf, while in shallow waters of the western sector, there is a marked litoral drift towards the inside of estuary. The conjunction of morphological and sedimentological data allowed to extend the characterization of two ancient coastal levels, indicative of stabilization periods of sea level during the last transgressive process.
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References
Aliotta, S., 1987. Estudio de la geomorfología y de la dinámica sedimentaria del estuario de Bahía Blanca entre Puerto Rosales y El Fondeadero, Universidad Nacional del Sur, tesis doctoral, Bahía Blanca, pp 180.
Aliotta, S. and E.A. Farinati, 1990. Stratigraphy of Holocene sand-shell ridges in the Bahia Blanca Estuary, Argentina. Marine Geology, 94(1): 353-360.
Aliotta, S. and G.M.E. Perillo, 1987. A sand wave field in the entrance to Bahía Blanca estuary, Argentina. Marine Geology, 76(1): 1-14.
Aliotta, S. y G.M.E. Perillo, 1990. Línea de costa sumergida en el Estuario de Bahía Blanca, Provincia de Buenos Aires. Revista de la Asociación Geológica Argentina, 45(3-4): 300-305.
Aliotta, S., E.A. Farinati and J.O. Spagnuolo, 2001. Sedimentological and Taphonomical Differentiation of Quaternary Marine Deposits, Bahía Blanca, Argentina. Journal of Coastal Research, 17(4): 792-801.
Aliotta, S., G.O. Lizasoain y S.S. Ginsberg, 2004. Dinámica sedimentaria y evolución morfológica de un profundo canal del estuario de Bahía Blanca. Revista de la Asociación Geológica Argentina, 59(1): 14-28.
Aliotta, S., G.O. Lizasoain y W.O. Lizasoain, 1991. Sedimentología y paleoambientes cuaternarios en el sector interno del estuario de Bahía Blanca, Argentina. Anales del Instituto de Ciencias del Mar y Limnología de la Universidad Autónoma de México, 18(1): 99-107.
Aliotta, S., G.O. Lizasoain y W.O. Lizasoain, 1992. Sedimentos subsuperficiales entre Puerto Galvan e Ing. White, Canal Principal del Estuario de Bahía Blanca, Argentina. Actas III Jornadas Geológicas Bonaerenses, 1: 213-217, La Plata.
Aliotta, S., J.O. Spagnuolo y E.A. Farinati, 2003. Evidencias geológicas del proceso transgresivo-regresivo holoceno en la entrada del estuario de Bahía Blanca, Argentina. Actas IX Congreso de Associaçáo Brasileira de Estudos Quaternarios y II Congreso do Quaternario de Paises de Linguas Ibéricas, ABEQUA, 183: 1-5, Brasil.
Aliotta, S., J.O. Spagnuolo y E.A. Farinati, 2009. Origen de una roca de playa en la región costera de Bahía Blanca, Argentina. Pesquisas em Geociências, 36(1): 107-116.
Aliotta, S., S.S. Ginsberg, D.A. Giagante, L.G. Vecchi and M.E. Minor-Salvatierra, 2014. Seismic Stratigraphy of Pleistocene Deltaic Deposits in Bahía Blanca Estuary, Argentina. Anais da Academia Brasileira de Ciências, 86(2): 51-64.
Aliotta, S., G.O. Lizasoain, W.O. Lizasoain and S.S. Ginsberg, 1996. Late Quaternary sedimentary sequence in Bahía Blanca Estuary, Argentina. Journal of Coastal Research, 2(4): 875-882.
Aliotta, S., E. Schnack, F.I. Isla y G.O. Lizasoain, 2000. Desarrollo secuencial de formas de fondo en un régimen macromareal. Revista de la Asociación Argentina de Sedimentología, 7(1-2): 95-109.
Aliotta, S., J.O. Spagnuolo, C.A. Galán y W.D. Melo, 1997. Muestreador oceanográfico de sedimentos superficiales de fondo para ser empleado simultáneamente con la prospección sísmica. Actas resumen X Coloquio de Oceanografía. IAPSO (Ed). Bahía Blanca, 38 pp 1.
Aliotta, S., J.O. Spagnuolo, S.S. Ginsberg y E.M. Gelós, 1999. Sedimentos de fondo-subfondo y aspectos geomorfológicos de la plataforma continental entre el estuario de Bahía Blanca y bahía Anegada, provincia de Buenos Aires. Revista de la Asociación Argentina de Sedimentología, 6(1-2): 19-35.
Aliotta, S., S.S. Ginsberg, J.O. Spagnuolo, E.A. Farinati, D.A. Giagante and L.G.Vecchi, 2013. Late Quaternary in a South Atlantic estuarine system: Stratigraphic and paleontologic indicators of coastal evolution. Journal of South American Earth Sciences, 45: 194-208.
Allen, J.R.L., 1968a. Current Ripples; Their relation to patterns of water and sediment motion. North-Holland Publishing Company, Amsterdam. pp 433.
Allen, J.R.L., 1968b. The nature and origin of bed form hierarchies. Sedimentology, 10: 161-182.
Allen, J.R.L., 1970. Physical Processes of Sedimentation. Elsevier, New York, pp 248.
Ashley, G.M., 1990. Classification of large-scale subaqueous bedforms: a new look at an old problem. Journal of Sedimentary Petrology, 60(1): 160-172.
Belknap, D.F. and J.C. Kraft, 1977. Holocene relative sea-level changes and costal stratigraphic units on the northwest flank of the Baltimore Canyon Trough geosynclines. Journal Sedimentary Petrology, 47: 10-629.
Boothroyd, J.C. and D.K. Hubbard, 1975. Genesis of bedforms in mesotidal estuaries. En: Estuarine Research, Geology and Engineering. Cronin, L. E. (Ed). Academic Press, New York, 2: 217-234.
Bouma, A.H., M.A. Hampton and R.C. Orlando, 1977. Sand waves and other bedforms in lower Cook Inlet, Alaska. Marine Geotechnology, 2: 291-308.
Campo, A.M., V. Gil, J.O. Gentilli, A. Volonté y V. Duval, 2011. Inventario de eventos climáticos–meteorológicos extremos. Suroeste bonaerense (1995-2010). Párrafos geográficos, 1(1): 102-115.
Cavallotto, J.L., R.A. Violante and G. Parker, 2004. Sea-level fluctuations during the last 8600 years in the de la Plata River (Argentina). Quaternary International, 114: 155-165.
Clark, J.A., 1980. A numerical model of world-wide sea level changes on a viscoelastic Earth. En: Earth Rheology, Isostasy and Eustasy. Mörner, N.A. (Ed). John Wiley & Sons, 525-534.
Clark, J.A. and A.L. Bloom, 1979. The effect of the Patagonian ice sheet on relative sea levels along the Atlantic coast of South America: a numerical calculation. Abstracts with Programs of the International Symposium of Coastal Evolution. San Pablo, 1: 61-79.
Corrêa, I.C.S., 1996. Les variations du niveau de la mer durant les derniers 17.500 ans BP: L’exemple de la plate-forme continentale du Rio Grande do Sul-Brésil. Marine Geology, 130: 163-178.
Corrêa, I.C.S., L.R. Silva-Martins, J.M Medina-Ketzer, A.R.E. Días-Elías e R Martins, 1996. Evoluçao sedimentológica e paleogeográfica da plataforma continental sul e sudeste do Brasil. Notas Técnicas, 9: 51-61.
Cowel, P.J. and B.G. Thom, 1994. Morphodynamics of coastal evolution. En: Coastal evolution, Late Quaternary shoreline morphodynamics. Carter, R.W.G. and C.D. Woodroffe (Ed). Cambridge University Press, New York, pp 517
Cuadrado, D.G., E.A. Gómez and S.S. Ginsberg, 2003. Large transverse bedforms in a mesotidal estuary: Revista de la Asociación Argentina de Sedimentología, 10(2): 163-172.
Fairbridge, R.W., 1961. Eustatic changes in sea-level. En: Physics and Chemistry of the Earth. Ahrens, L.H. and others (Ed). Pergamon Press, New York, 4: 99-185.
Farinati, E.A., 1983. Paleontología, Paleoecología y Paleogeografía de los sedimentos marinos de los alrededores de Bahía Blanca, Universidad Nacional del Sur, tesis doctoral, pp 179, Bahía Blanca.
Fidalgo, F., F.O. De Francesco y U.R. Colado, 1973. Geología superficial en las Hojas Castelli, J.M., Cobo y Monasterio (Provincia de Buenos Aires). Actas V Congreso Geológico Argentino, Villa Carlos Paz, Asociación Geológica Argentina, 4: 27-39.
Folk, R.L., 1974. Petrology of Sedimentary Rocks. Hemphill Publishing Company, Austin, Texas, pp 184.
Giagante, D.A, S. Aliotta, S.S. Ginsberg, L.G. Vecchi and J.O. Spagnuolo, 2011. Evolution of a coastal alluvial deposit in response to the last Quaternary marine transgression, Bahía Blanca estuary, Argentina. Quaternary Research, 75: 614-623.
Ginsberg, S.S., 1991. Geomorfología y evolución de canales de marea del Estuario de Bahía Blanca, Universidad Nacional del Sur, tesis doctoral, Bahía Blanca, pp 176.
Ginsberg, S.S. and G.M.E. Perillo, 1999. Deep-scour holes at tidal channel junctions, Bahía Blanca estuary, Argentina. Marine Geology, 160: 171-182.
Ginsberg, S.S., S. Aliotta y M.E. Minor-Salvatierra, 2012. Patrón de variabilidad espacio-temporal de las corrientes de marea en un canal estuarial. Congresso Brasileiro de Oceanografía, Río de Janeiro, 1 cd-rom, 0585.
Ginsberg, S.S., D.G. Cuadrado y E.A. Gómez, 2001. Circulación de arena inferida a través del análisis de dunas submarinas (Estuario de Bahía Blanca, Argentina). Actas IX Congreso Latinoamericano sobre Ciencias del Mar, COLACMAR, 424: 1-4, Colombia.
Ikehara, K. and Y. Kinoshita, 1994. Distribution and origin of subaqueous dunes on the shelf of Japan. Marine Geology, 120: 75-87.
Isla, F.I., 1998. Holocene coastal evolution of Buenos Aires. En: Quaternary of South América and Antarctic Península. Rabassa A. J. (Ed). Balkema, A.A. Publishers, Rotterdam, 11: 297-321.
Karisiddaiah, S.M., M. Veerayya and K.H. Vora, 2002. Seismic and sequence stratigraphy of the central western continental margin of India: late-Quaternary evolution. Marine Geology, 192: 335-353.
Kenyon, N.H., 1970. Sand ribbons in European tidal seas. Marine Geology, 9: 25-39.
Lanckneus, J., G. De Moor and I. Meyes, 1994. Preliminary reconnaissance of present bedforms. Final Report of MAST Project 0025-C, Relationship between seafloor currents and sediment mobility in the southern North Sea. Univeriteit Ghent, Brussels, 6: 1-27.
Liu X., D.X. Xia, S. Berné, K.Y. Wang, T.T. Marsset, Y.X. Tang and J.F. Bourillet, 1998. Tidal-depositional systems of China's continental shelf, with special reference to the eastern Bohai Sea. Marine Geology, 145(3-4): 225-253.
Lizasoain, G.O. y S. Aliotta, 1995. Fondo rocoso en el canal de navegación del estuario de Bahía Blanca, Argentina. Actas IV Jornadas Geológicas y Geofísicas Bonaerenses, 1: 295-303, Junín.
Lobo, F.J., F. Hernández-Molina, L. Somoza, J. Rodero, A. Maldonado and A. Barnolas, 2000. Patterns of bottom current flow deduced from dune asymmetries over the gulf of Cadiz shelf (southwest Spain). Marine Geology, 164: 91-117.
Minor-Salvatierra, M.E., S. Aliotta, y S.S. Ginsberg, 2011. Características sismoestratigráficas vinculadas a un campo de dunas submareales. Actas XVIII Congreso Geológico Argentino, 1: 299-300, Neuquén.
Minor-Salvatierra, M.E., S. Aliotta y S.S. Ginsberg, 2012. Morfología y migración de dunas submareales en el estuario de Bahía Blanca, Argentina. Congresso Brasileiro de Oceanografía, Río de Janeiro, 1 cd-rom, 0562.
Mitchum, J.R., R.M. Vail and P.R. Sangree, 1977. Seismic Stratigraphy and Global Changes of Sea Level, Part 6: Stratigraphic Interpretation of Seismic Reflection Patterns in Depositional Sequences. En: Applications to hydrocarbon exploration. Seismic Stratigraphy. Payton, CH.E. (Ed). American Association of Petroleum Geologits, Tulsa, 26: 117-134.
Nedeco-Arconsult, 1983. Estudio del dragado del Canal de Acceso al Puerto de Bahía Blanca. Argentina. Informe final de la Dirección Nacional de Construcciones Portuarias y Vías Navegables, 3 volúmenes.
Pascual, R., 1961. Un nuevo Cardiomyinae (Rodentia, Caviidae) de la Formación Arroyo Chasicó (Plioceno inferior) de la Provincia de Buenos Aires. Consideraciones Geológicas. Ameghiniana, 2(4): 61-71.
Perillo, G.M.E., E.A. Gómez, S. Aliotta y D.E. Galíndez, 1985. Granus: un programa Fortran para el análisis estadístico y gráfico de muestras de sedimentos. Revista Asociación Argentina Mineralogía, Petrología y Sedimentología, 16(1): 1-5.
Píccolo, M.C., G.M.E. Perillo y J. Arango, 1987. Hidrografía del estuario de Bahía Blanca, Argentina. Revista Geofísica, 26: 75-89.
Pirazzoli, P.A., 1977. Sea level relative variations in the world during the last 2,000 years. Zeitschrift fuer Geomorphologie, 21(3): 284-296.
Pirazzoli, P.A., 1991. World Atlas of Holocene Sea Level Changes. Elsevier, Amsterdam, Oceanography Series, 58: pp 300.
Rubin, D.M and D.S. Mc Culloch, 1980. Single and superimposed bedforms: a synthesis of San Francisco Bay and flume observation. Sedimentary Geology, 26: 207-231.
Serman, D.D., 1985. Características de la marea en Bahía Blanca. Boletín del Centro Naval, 103: 51-74.
Shackleton, N.J., 1987. Oxygen isotopes, ice volume and sea level. Quaternary Science Reviews, 6: 183-190.
Suguio, K. e L. Martin, 1980. Estudos sobre as oscilaçôes do nivel marinho Quaternario ao longo do litoral Brasileiro. Actas Simposio sobre Problemas Geológicos del Litoral Atlántico Bonaerense, 1: 281-298, Mar del Plata.
Spagnuolo, J.O., 2005. Evolución geológica de la región costera-marina de Punta Alta, provincia de Buenos Aires. Universidad Nacional del Sur, tesis doctoral, Bahía Blanca, pp 269.
Trenhaile, A.S., 1997. Coastal dynamics and landforms. Clarendon Press, Oxford, pp 366.
Vecchi, L.G, S.S. Ginsberg y S. Aliotta, 2008. Banco arenoso en un ambiente estuarial: rasgos de fondo y dinámica sedimentaria. Revista de la Asociación Geológica Argentina, 63(3): 395-406.
Violante, R.A. and G. Parker, 2004. The post-last glacial maximum transgression in the de la Plata River and adjacent inner continental shelf, Argentina. Quaternary International, 114: 167-181.
Violante, R.A., I.P. Costa, J.L. Cavallotto, C.M.Paterlini, S. Marcolini, y G. Bozzano, 2014. Rasgos morfosedimentarios, procesos y evolución de la plataforma continental argentina desde el último máximo glacial. Revista de la Asociación Geológica Argentina, (71) 2: 292-310.
Zazo, C., C.J. Dabrio, J.L. Goy, T. Bardají, B. Ghaleb, J. Lario, M. Hoyos, C.I. Hillaire-Marrcel, F. Sierro, J.A. Flores, P.G. Silva y F. Borja, 1996. Cambios en la dinámica litoral y nivel del mar durante el Holoceno en el Sur de Iberia y Canarias Orientales. Geogaceta, 20(7): 1679-1682.
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