World bathymetric charts – On the requirement for a world wide bathymetric chart on a scale larger than the General Bathymetric Chart of the Oceans (GEBCO)

This manuscript is a reprint of the original paper previously published in 1972 in The International Hydrographic Review (IHR, https://ihr.iho.int/): Pascoe, L. N. (1972). World bathymetric charts – On the requirement for a world wide bathymetric chart on a scale larger than the General Bathymetric Chart of the Oceans (GEBCO). The International Hydrographic Review, 49(1), 153–160. https://journals.lib.unb.ca/index.php/ihr/article/view/2387

Aguja Canyon – New approach added to the structural and morphological model in the continental margin of the Colombian Caribbean

On the submerged continental margin of the Colombian Caribbean, the Aguja submarine canyon stands out, a structure formed by denudation processes that crosses the continental shelf and transports sediments to the deep waters in the Colombia basin. Using new hydrographic data and bathymetric analyses, this study shows a physical characterization of the canyon, which stretches for more than 197 km with depths of 10 m to 3,783 m and a width of 1 km to 8 km. Four segments controlled by regional structural geology are identified, each with a distinct channel direction. Aguja Canyon shows instability in its walls and surroundings with landslides, faults and mud volcanism, evidencing considerable tectonic and sedimentary activity along the continental margin