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Geomorfología de los fondos submarinos del Parque Nacional Natural Corales de Profundidad, mar Caribe colombiano

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Author
Morales Giraldo, David Fernando
Rocha Gutiérrez, Venus Lorena
Posada Posada, Blanca Oliva
Date
2017

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Alternative Title
Geomorphology of the submarine bottoms of the Corales de Profundidad Natural National Park, Colombian Caribbean Sea
Abstract
La cartografía geomorfológica detallada permite entender cómo los procesos ecológicos claves se ven influenciados por el relieve submarino, además sirve para identificar sitios de interés particular donde se desarrollan hábitats bentónicos en áreas tropicales como la del Caribe central. El Parque Nacional Natural Corales de Profundidad fue declarado en 2013 como un área marina protegida en el mar Caribe colombiano. Se encuentra en el terreno tectónico Cinturón Plegado del Sinú, formado por la interacción entre la placa oceánica Caribe y la continental suramericana. Las características geológicas contribuyen a la comprensión del origen de las geoformas de fondo asociadas a diferentes ecosistemas en los que se encuentran corales de profundidad que, debido a su importancia ecológica, son comunidades bentónicas a conservar. El modelo de elevación digital, elaborado con la información batimétrica adquirida con sistema multihaz, permitió la actualización e interpretación de unidades y rasgos geomorfológicos, utilizando como base el modelo de sombras para visualizar cambios abruptos y las pendientes como atributos descriptivos de las unidades de relieve. En este trabajo se describen 16 unidades geomorfológicas con base en el modelo digital de terreno, las cuales fueron asociadas con posibles procesos de origen geológico como levantamiento, erosión, sedimentación y movimientos en masa, además de rasgos y lineamientos de tipo geomorfológico y geológico. Esta información contribuye a ampliar el conocimiento de los fondos marinos colombianos en los cuales se ha desarrollado poca investigación de este tipo.
Detailed geomorphological mapping allows us to understand how the key ecological processes are influenced by the submarine relief,in addition to identifying sites of particular interest where benthic habitats develop in tropical areas such as the central Caribbean. The Corales de Profundidad Natural National Park was declared in 2013 as a Marine Protected Area in the Colombian Caribbean Sea. It is located in the Sinu Fold Belt tectonic terrain formed by the interaction between the Caribbean oceanic and the South American continental plates. The geological characteristics contribute to the understanding of the origin of the seabed geomorphology associated with different ecosystems in which deep-water corals are found. Due to their ecological importance, the benthic communities are to be conserved. The digital elevation model, developed with the bathymetric information acquired with multibeam echosounders, allowed the updating and interpretation of geomorphological units and features based on the hillshade model to visualize abrupt changes and slopes as descriptive attributes of the relief units. This work describes 16 geomorphological units based on the digital terrain model, which were associated with possible geological processes such as uplift, erosion, sedimentation and mass movements, as well as geomorphological and geological features and alignments. This information contributes to broadening the knowledge of the Colombian seabed for which little research of this type has been conducted.
Journal
Boletín de Investigaciones Marinas y Costeras
Volume
46
Issue/Article Nr
2
Page Range
pp. 73-90
DOI
10.25268/bimc.invemar.2017.46.2.751
Resource/Dataset Location
http://boletin.invemar.org.co/index.php/boletin/article/view/751/676
URI
http://hdl.handle.net/1834/10806
ae974a485f413a2113503eed53cd6c53
10.25268/bimc.invemar.2017.46.2.751
Scopus Count
Collections
3. Boletín de Investigaciones Marinas y Costeras

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