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Sediment waves on the Santa Catarina Plateau (western South Atlantic)
Borisov, D.; Frey, D.; Levchenko, O. (2020). Sediment waves on the Santa Catarina Plateau (western South Atlantic). J. South Am. Earth Sci. 102: 102698. https://dx.doi.org/10.1016/j.jsames.2020.102698
In: Journal of South American Earth Sciences. Elsevier: Oxford; New York; . ISSN 0895-9811; e-ISSN 1873-0647, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoord
    Marien/Kust
Author keywords
    Contourites; Bottom currents; Seismoacoustic profiling; Acoustic facies; Echo character; LCDW; AABW; Quaternary
Auteurs  Top 
  • Borisov, D.
  • Frey, D.
  • Levchenko, O.
Abstract
    High-resolution seismoacoustic and multibeam data revealed a large field of sediment waves covering the Santa Catarina Plateau on the Brazilian Southern Margin. Within the field several zones were determined: a zone of large sediment waves (up to 70 m in height), a zone of smaller sediment waves (15–30 m in height) and a zone of buried sediment waves. The correlation of the seismoacoustic and multibeam data with the results of numerical modeling of bottom current velocities showed a strong influence of bottom currents on the formation of sediment waves. The process of wave burial in the northern part of the field can be caused by the interplay between gravity flows from the continental slope and bottom currents.
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