www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern
Multichannel and high-resolution seismic profiles complemented with swath bathymetry show a variety of contourite deposits in the northern Weddell Sea resulting from the interaction between bottom currents and the seafloor physiography. Seven types of contourite drifts are identified based on the se...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.378.4807 2023-05-15T18:43:17+02:00 www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern Weddell Sea (antarctica Andrés Maldonado A Antonio Barnolas B O Bohoyo A Carlota Escutia A Jesús Galindo-zaldívar C Javier Hernández-molina D Antonio Jabaloy C Francisco J. Lobo A C. Hans Nelson A José Rodríguez-fernández A Luis Somoza B Juán-tomás Vázquez E The Pennsylvania State University CiteSeerX Archives 2003 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.378.4807 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.378.4807 Metadata may be used without restrictions as long as the oai identifier remains attached to it. text 2003 ftciteseerx 2016-09-18T00:13:29Z Multichannel and high-resolution seismic profiles complemented with swath bathymetry show a variety of contourite deposits in the northern Weddell Sea resulting from the interaction between bottom currents and the seafloor physiography. Seven types of contourite drifts are identified based on the seismic signature, reflector configuration and geometry of the depositional bodies. Giant elongated–mounded drifts are widespread in the area and associated with major channelized contour currents that flow at the base of large ridges. Thick basement/tectonic drifts result from the seafloor disruptions of the currents caused by the irregularities of the near-surface basement morphology. Sheeted drifts occur under the main core of the Weddell Gyre and also in areas of the abyssal plain away from the main flows. Various types of drifts in-fill depressions or are plastered against steep bathymetric ridges that intersect contour currents. The regional distribution of the drifts is mainly controlled by the physiography of the basin and the confined or unconfined nature of the bottom-current flows. The northern Weddell Sea is a region dominated by contourite processes and thus provides an area to compare contourite drifts with turbidite systems. The giant elongated–mounded drifts have a net asymmetry of the body, in contrast to turbidite channel–levee complexes that develop levees on each side of an axial turbidite channel. The basement/tectonic drifts prograde Text Weddell Sea Unknown Weddell Weddell Sea |
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Open Polar |
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ftciteseerx |
language |
English |
description |
Multichannel and high-resolution seismic profiles complemented with swath bathymetry show a variety of contourite deposits in the northern Weddell Sea resulting from the interaction between bottom currents and the seafloor physiography. Seven types of contourite drifts are identified based on the seismic signature, reflector configuration and geometry of the depositional bodies. Giant elongated–mounded drifts are widespread in the area and associated with major channelized contour currents that flow at the base of large ridges. Thick basement/tectonic drifts result from the seafloor disruptions of the currents caused by the irregularities of the near-surface basement morphology. Sheeted drifts occur under the main core of the Weddell Gyre and also in areas of the abyssal plain away from the main flows. Various types of drifts in-fill depressions or are plastered against steep bathymetric ridges that intersect contour currents. The regional distribution of the drifts is mainly controlled by the physiography of the basin and the confined or unconfined nature of the bottom-current flows. The northern Weddell Sea is a region dominated by contourite processes and thus provides an area to compare contourite drifts with turbidite systems. The giant elongated–mounded drifts have a net asymmetry of the body, in contrast to turbidite channel–levee complexes that develop levees on each side of an axial turbidite channel. The basement/tectonic drifts prograde |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Weddell Sea (antarctica Andrés Maldonado A Antonio Barnolas B O Bohoyo A Carlota Escutia A Jesús Galindo-zaldívar C Javier Hernández-molina D Antonio Jabaloy C Francisco J. Lobo A C. Hans Nelson A José Rodríguez-fernández A Luis Somoza B Juán-tomás Vázquez E |
spellingShingle |
Weddell Sea (antarctica Andrés Maldonado A Antonio Barnolas B O Bohoyo A Carlota Escutia A Jesús Galindo-zaldívar C Javier Hernández-molina D Antonio Jabaloy C Francisco J. Lobo A C. Hans Nelson A José Rodríguez-fernández A Luis Somoza B Juán-tomás Vázquez E www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern |
author_facet |
Weddell Sea (antarctica Andrés Maldonado A Antonio Barnolas B O Bohoyo A Carlota Escutia A Jesús Galindo-zaldívar C Javier Hernández-molina D Antonio Jabaloy C Francisco J. Lobo A C. Hans Nelson A José Rodríguez-fernández A Luis Somoza B Juán-tomás Vázquez E |
author_sort |
Weddell Sea (antarctica |
title |
www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern |
title_short |
www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern |
title_full |
www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern |
title_fullStr |
www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern |
title_full_unstemmed |
www.elsevier.com/locate/gloplacha Miocene to Recent contourite drifts development in the northern |
title_sort |
www.elsevier.com/locate/gloplacha miocene to recent contourite drifts development in the northern |
publishDate |
2003 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.378.4807 |
geographic |
Weddell Weddell Sea |
geographic_facet |
Weddell Weddell Sea |
genre |
Weddell Sea |
genre_facet |
Weddell Sea |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.378.4807 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766233579372675072 |