Colombian Pacific margin morphology in Bahia Solano and Tumaco zones
DOI:
https://doi.org/10.26640/22159045.284Keywords:
geoforms, submarine canyon, valley, scarps, underwater plateau, mountain, hill, Tumaco, Solano Bay, Emerald River, Bahia Ancon de SardinasAbstract
This research presents the results of bathymetric information analysis obtained during 2008 in a campaign conducted with the Agencia Nacional de Hidrocarburos in two sectors of colombian Pacific. This information was used to characterize the submerged landforms located on the continental margin in the areas between Bahia Solano and Baudó Bay as well as between Tumaco and Bahia Ancon de Sardinas. The submerged landforms were described by the use of the Publication Bathymetric No 6 of the International Hydrographic Organization; however the review of existing information and analysis of the elevation model generated by CARIS program enabled a more detailed description based on geological and tectonic conditions of the area. Note that the definition of Publication B-6 of the International Hydrographic Organization is weak in terms of characterization and description of landforms, therefore it was necessary to review existing information for the definition and identification from the same. The analysis allowed the description of 6 submerged landforms from the area, which owes its relief to the intense tectonic activity of subduction zones that are present in the region. The submarine canyons are one of the most notorious features of the Tumaco area, the escarpments and alignment of their structures are directly related to the dynamic behavior of the area; as well as the deformation and deposition of sediment on the ocean bottom. Thus by this research were described the submerged landforms found based on the bathymetric information analysis and the bibliographic information available by the study area.Downloads
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References
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[11] Manchuel, K., Régnier, M., Béthoux, N., Font, Y., Sallarès, V. y Díaz, J. New insights on the interseismic active deformation along the North Ecuadorian-South Colombian (NESC) margin. Tectonics 2011, 30, TC4003, doi:10.1029/2010TC002757.
[12] Arrieche, M. & Isabel, K. Sistemas turbidíticos del margen ibérico del Golfo de Valencia: interpretación de dos series de perfiles de sísmica de reflexión de gran longitud paralelas al margen (tesis). Universidad de Barcelona. Facultad de Geología. UPC. Escuela Técnica Superior d'Enginyers de Camins, Canals i Ports de Barcelona. 2003.
[13] McAdoo y Watts. 2004. von Huene et al., 1989; citado por Gueorgui Ratzov1, Marc Sosson1, Jean Yves Collot1, Sébastíen Migeon1, François Michaud1, Eduardo Lopez1, Yves Le Gonidec1 2009. En Deslizamientos submarinos a lo largo del margen convergente del Norte de Ecuador-Sur de Colombia. Posible Control Tectónico, Geología y Geofísica Marina y Terrestre del Ecuador, PSE-001-: pp. 75-82.
[14] Hampton, M.A., Lee, H.J. y Locat, J. Submarine Landslides, Review of Geophysics, 1996, Vol. 34, 33-59.
[15] Maslin, M., Mikkelsen, N., Vilela, C. & Haq, B. Sea-level and gas hydrate controlled catastrophic sediment failures of the Amazon Fan, Geology 1998, Vol. 26, 1107-1110.
[2] Manchuel, K., Pontoise, B., Béthoux, N., Régnier, M., Font, Y., Sallares, V., Díaz, J., Arreaga-Vargas, P., Monfret, T. y Yepes, H, Sismicidad e implicaciones estructurales en el área de Esmeraldas (Norte de Ecuador): a partir de los experimentos Sublime y Esmeraldas. 2009. Pp. 167-179.
[3] Collot, J., Charvis, P., Gutscher, M. y Operto, S. Exploring the Ecuador-Colombia Active Margin and Interplate Seismogenic Zone. Eos Trans AGU. 2002, 83(17): 185-192.
[4] Gueorgui Ratzov1, Marc Sosson1, Jean Yves Collot1., Sébastíen Migeon1, François Michaud1, Eduardo Lopez1 y Yves Le Gonidec1. Deslizamientos submarinos a lo largo del margen convergente del Norte de Ecuador-Sur de Colombia. Posible Control Tectónico, Geología y Geofísica Marina y Terrestre del Ecuador. 2009. pp 75-82.
[5] Dimar-CIOH, Dirección General Marítima-Centro de Investigaciones Oceanográficas e Hidrográficas del Caribe, 2011. Carta Náutica Nacional No. 003, Colombia.
[6] Dimar-CIOH, Dirección General Marítima-Centro de Investigaciones Oceanográficas e Hidrográficas del Caribe, 2009. Carta Náutica Nacional No. 032, Colombia.
[7] Brothers, D., ten Brink, U., Andrews, B., Chaytor, J. y Twichell, D. Geomorphic process fingerprints in submarine canyons. Marine Geology, 2013, 337:53-66.
[8] Collot, J., Marcaillou, B., Sage, F., Michaud, F., Agudelo, W. y Charvis, P. Are rupture zone limits of great subduction earthquakes controlled by upper plate structures? Evidence from multichannel seismic reflection data acquired across the northern Ecuador-southwest Colombia margin. J Geophysics Vol. 109 (B11103), 2004, pp, 1-14.
[9] Sanclemente, E. Seismic imaging of the structure of the central Ecuador convergent margin: relationship with the inter-seismic coupling variations. Earth Sciences. Université Nice Sophia Antipolis. 2014.
[10] M. Grant Gross, Oceanographic 5ta. Ed. 1990. Citado en Definition of ABYSSAL HILL. (2016). Merriam-webster.com. Retrieved 22 June 2015, from http://www.merriam-webster.com/dictionary/abyssal%20hill
[11] Manchuel, K., Régnier, M., Béthoux, N., Font, Y., Sallarès, V. y Díaz, J. New insights on the interseismic active deformation along the North Ecuadorian-South Colombian (NESC) margin. Tectonics 2011, 30, TC4003, doi:10.1029/2010TC002757.
[12] Arrieche, M. & Isabel, K. Sistemas turbidíticos del margen ibérico del Golfo de Valencia: interpretación de dos series de perfiles de sísmica de reflexión de gran longitud paralelas al margen (tesis). Universidad de Barcelona. Facultad de Geología. UPC. Escuela Técnica Superior d'Enginyers de Camins, Canals i Ports de Barcelona. 2003.
[13] McAdoo y Watts. 2004. von Huene et al., 1989; citado por Gueorgui Ratzov1, Marc Sosson1, Jean Yves Collot1, Sébastíen Migeon1, François Michaud1, Eduardo Lopez1, Yves Le Gonidec1 2009. En Deslizamientos submarinos a lo largo del margen convergente del Norte de Ecuador-Sur de Colombia. Posible Control Tectónico, Geología y Geofísica Marina y Terrestre del Ecuador, PSE-001-: pp. 75-82.
[14] Hampton, M.A., Lee, H.J. y Locat, J. Submarine Landslides, Review of Geophysics, 1996, Vol. 34, 33-59.
[15] Maslin, M., Mikkelsen, N., Vilela, C. & Haq, B. Sea-level and gas hydrate controlled catastrophic sediment failures of the Amazon Fan, Geology 1998, Vol. 26, 1107-1110.
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2015-12-07
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How to Cite
Colombian Pacific margin morphology in Bahia Solano and Tumaco zones. (2015). CIOH Scientific Bulletin, 33, 169-186. https://doi.org/10.26640/22159045.284
