Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model
The Drake Passage is an oceanic gateway of about 850 km width located between South America and the Antarctic Peninsula that connects the southeastern Pacific Ocean with the southwestern Atlantic Ocean. It is an important gateway for mantle flow, oceanographic water masses, and migrations of biota....
| Autores: | , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/690666 |
| Acceso en línea: | http://hdl.handle.net/10486/690666 https://dx.doi.org/10.1080/17445647.2018.1543618 |
| Access Level: | acceso abierto |
| Palabra clave: | Antarctica Bathymetry Drake Passage Scotia-Arc seafloor Geología |
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Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric modelBohoyo, F.Larter, R. D.Galindo-Zaldívar, J.Leat, P. T.Maldonado, A.Tate, A. J.Flexas, M. M.Gowland, E. J.M.Arndt, J. E.Dorschel, B.Kim, Y. D.Hong, J. K.López Martínez, JerónimoMaestro González, AdolfoBermúdez, O.Nitsche, F. O.Livermore, R. A.Riley, T. R.AntarcticaBathymetryDrake PassageScotia-ArcseafloorGeologíaThe Drake Passage is an oceanic gateway of about 850 km width located between South America and the Antarctic Peninsula that connects the southeastern Pacific Ocean with the southwestern Atlantic Ocean. It is an important gateway for mantle flow, oceanographic water masses, and migrations of biota. This sector developed within the framework of the geodynamic evolution of the Scotia Arc, including continental fragmentation processes and oceanic crust creation, since the oblique divergence of the South American plate to the north and the Antarctic plate to the south started in the Eocene. As a consequence of its complex tectonic evolution and subsequent submarine processes, as sedimentary infill and erosion mainly controlled by bottom currents and active tectonics, this region shows a varied physiography. We present a detailed map of the bathymetry and geological setting of the Drake Passage that is mainly founded on a new compilation of precise multibeam bathymetric data obtained on 120 cruises between 1992 and 2015, resulting in a new Digital Bathymetric Model with 200 × 200 m cell spacing. The map covers an area of 1,465,000 km2 between parallels 52°S and 63°S and meridians 70°W and 50°W at scale 1:1,600,000 allowing the identification of the main seafloor features. In addition, the map includes useful geological information related to magnetism, seismicity and tectonics. This work constitutes an international cooperative effort and is part of the International Bathymetric Chart of the Southern Ocean project, under the Scientific Committee on Antarctic Research umbrellaThis work was supported through projects CTM2014- 60451-C2-02/01, CTM2017-89711-C2-2/1-P and special action CTM2011-13970-E from “Ministerio de Ciencia, Innovación y Universidades” of Spain. This study is part of the British Antarctic Survey Polar Science for Planet Earth Programme funded by the Natural Environment Research Council. This work was also supported by the Scientific Committee on Antarctic ResearchTaylor & FrancisDepartamento de Geología y GeoquímicaFacultad de Ciencias20192019-07-03research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/690666https://dx.doi.org/10.1080/17445647.2018.1543618reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6906662026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| title |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| spellingShingle |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model Bohoyo, F. Antarctica Bathymetry Drake Passage Scotia-Arc seafloor Geología |
| title_short |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| title_full |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| title_fullStr |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| title_full_unstemmed |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| title_sort |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
| dc.creator.none.fl_str_mv |
Bohoyo, F. Larter, R. D. Galindo-Zaldívar, J. Leat, P. T. Maldonado, A. Tate, A. J. Flexas, M. M. Gowland, E. J.M. Arndt, J. E. Dorschel, B. Kim, Y. D. Hong, J. K. López Martínez, Jerónimo Maestro González, Adolfo Bermúdez, O. Nitsche, F. O. Livermore, R. A. Riley, T. R. |
| author |
Bohoyo, F. |
| author_facet |
Bohoyo, F. Larter, R. D. Galindo-Zaldívar, J. Leat, P. T. Maldonado, A. Tate, A. J. Flexas, M. M. Gowland, E. J.M. Arndt, J. E. Dorschel, B. Kim, Y. D. Hong, J. K. López Martínez, Jerónimo Maestro González, Adolfo Bermúdez, O. Nitsche, F. O. Livermore, R. A. Riley, T. R. |
| author_role |
author |
| author2 |
Larter, R. D. Galindo-Zaldívar, J. Leat, P. T. Maldonado, A. Tate, A. J. Flexas, M. M. Gowland, E. J.M. Arndt, J. E. Dorschel, B. Kim, Y. D. Hong, J. K. López Martínez, Jerónimo Maestro González, Adolfo Bermúdez, O. Nitsche, F. O. Livermore, R. A. Riley, T. R. |
| author2_role |
author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Departamento de Geología y Geoquímica Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Antarctica Bathymetry Drake Passage Scotia-Arc seafloor Geología |
| topic |
Antarctica Bathymetry Drake Passage Scotia-Arc seafloor Geología |
| description |
The Drake Passage is an oceanic gateway of about 850 km width located between South America and the Antarctic Peninsula that connects the southeastern Pacific Ocean with the southwestern Atlantic Ocean. It is an important gateway for mantle flow, oceanographic water masses, and migrations of biota. This sector developed within the framework of the geodynamic evolution of the Scotia Arc, including continental fragmentation processes and oceanic crust creation, since the oblique divergence of the South American plate to the north and the Antarctic plate to the south started in the Eocene. As a consequence of its complex tectonic evolution and subsequent submarine processes, as sedimentary infill and erosion mainly controlled by bottom currents and active tectonics, this region shows a varied physiography. We present a detailed map of the bathymetry and geological setting of the Drake Passage that is mainly founded on a new compilation of precise multibeam bathymetric data obtained on 120 cruises between 1992 and 2015, resulting in a new Digital Bathymetric Model with 200 × 200 m cell spacing. The map covers an area of 1,465,000 km2 between parallels 52°S and 63°S and meridians 70°W and 50°W at scale 1:1,600,000 allowing the identification of the main seafloor features. In addition, the map includes useful geological information related to magnetism, seismicity and tectonics. This work constitutes an international cooperative effort and is part of the International Bathymetric Chart of the Southern Ocean project, under the Scientific Committee on Antarctic Research umbrella |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019 2019-07-03 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10486/690666 https://dx.doi.org/10.1080/17445647.2018.1543618 |
| url |
http://hdl.handle.net/10486/690666 https://dx.doi.org/10.1080/17445647.2018.1543618 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Taylor & Francis |
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Taylor & Francis |
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reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
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Universidad Autónoma de Madrid |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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