Consulta: creatorFacets:"Khumara, S."
Registros recuperados: 1
Data/hora: 26/07/2024 22:49:07

The Esmeraldas Canyon: a helpful marker of the Pliocene‐Pleistocene tectonic deformation of the north Ecuador southwest Colombia convergent margin
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Collot, Jean-yves; Ratzov, Gueorgui; Silva, P.; Proust, J.‐n.; Migeon, Sebastien; Hernandez, M.‐j.; Michaud, F.; Pazmino, A.; Barba Castillo, D.; Alvarado, A.; Khumara, S.
Deciphering the migration pattern of the Esmeraldas submarine Canyon (EC) and its history of cut‐and‐fill allows constraining the Pliocene‐Pleistocene tectonic evolution of the Ecuador‐Colombia convergent margin. Swath bathymetry, multichannel seismic reflection and chronological data show that the EC is a 143‐km–long, shelf‐incising, river‐connected canyon that started incising slope apron deposits in the Manglares fore‐arc basin ~ 5.3 Ma ago. The EC inception appears contemporaneous with the subduction of the Carnegie Ridge that is believed to have initiated 5‐6 Myr ago and is considered an indirect cause of the EC formation. During its two‐stage left‐lateral migration, the EC upper‐half scoured deep incisions providing evidences for uplift episodes in...
Tipo: Text
Palavras-chave: Convergent margin tectonics; Submarine canyon; Fore-arc basin; Natural hazards; Paleoseismology.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00509/62060/66236.pdf