Contourite deposits in Protector Basin (Antarctica)

• Lara F. Pérez ^[1] ; F. Javier Hernández-Molina ^[1] ; Fernando Bohoyo ^[2] ; Andrés Maldonado ^[3] ; Juan-Tomás Vázquez ^[4] ; Jesús Galindo-Zaldívar ^[3] ; F. José Lobo ^[3] ; Yasmina Martos-Martin ^[3]
  1. [1] Universidade de Vigo

     Universidade de Vigo

     Vigo, España

     
  2. [2] Instituto Geológico y Minero de España

     Instituto Geológico y Minero de España

     Madrid, España

     
  3. [3] Instituto Andaluz de Ciencias de la Tierra

     Instituto Andaluz de Ciencias de la Tierra

     Granada, España

     
  4. [4] Instituto Español de Oceanografía

     Instituto Español de Oceanografía

     Madrid, España

     

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• Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 11, 2010 (Ejemplar dedicado a: Deep-Water Circulation: Processes & Products. International Congress. Baitona, Pontevedra, Spain. 16 & 17 June 2010), págs. 135-136
• Idioma: inglés
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• Resumen

  • A morphological and stratigraphical study of the sedimentary succession of Protector Basin (South Scotia Sea, Antarctica), based on the analysis of multichannel seismic reflection profiles, reveals the interaction between the Antarctic Circumpolar Current (ACC) and the Weddell Sea Deep Water (WSDW). This interaction is recognized from the Middle Miocene to the present-day contourite deposits, once the connection between the Weddell and Scotia Seas was established through narrow seaways in the South Scotia Ridge. We identified three main depositional intervals, which mark major events on the water masses circulation patterns.