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....
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Online Access: | http://hdl.handle.net/10481/60146 https://doi.org/10.1080/17445647.2018.1543618 |
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ftunivgranada:oai:digibug.ugr.es:10481/60146 2023-05-15T13:43:27+02:00 Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model Bohoyo, F. Galindo Zaldívar, Jesús Maldonado, A. 2019-01-01 application/pdf http://hdl.handle.net/10481/60146 https://doi.org/10.1080/17445647.2018.1543618 eng eng Taylor & Francis F. Bohoyo, R. D. Larter, J. Galindo-Zaldívar, P. T. Leat, A. Maldonado, A. J. Tate, M. M. Flexas, E. J. M. Gowland, J. E. Arndt, B. Dorschel, Y. D. Kim, J. K. Hong, J. López-Martínez, A. Maestro, O. Bermúdez, F. O. Nitsche, R. A. Livermore & T. R. Riley (2019) Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model, Journal of Maps, 15:2, 49-59. http://hdl.handle.net/10481/60146 doi:10.1080/17445647.2018.1543618 Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess CC-BY-NC-ND Bathymetry Seafloor Drake Passage Scotia-Arc Antarctica info:eu-repo/semantics/article 2019 ftunivgranada https://doi.org/10.1080/17445647.2018.1543618 2020-03-11T00:19:25Z 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. This 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Drake Passage Scientific Committee on Antarctic Research Southern Ocean DIGIBUG: Repositorio Institucional de la Universidad de Granada Antarctic Antarctic Peninsula Drake Passage Pacific Southern Ocean The Antarctic Journal of Maps 15 2 49 59 |
institution |
Open Polar |
collection |
DIGIBUG: Repositorio Institucional de la Universidad de Granada |
op_collection_id |
ftunivgranada |
language |
English |
topic |
Bathymetry Seafloor Drake Passage Scotia-Arc Antarctica |
spellingShingle |
Bathymetry Seafloor Drake Passage Scotia-Arc Antarctica Bohoyo, F. Galindo Zaldívar, Jesús Maldonado, A. Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
topic_facet |
Bathymetry Seafloor Drake Passage Scotia-Arc Antarctica |
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. This 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. |
format |
Article in Journal/Newspaper |
author |
Bohoyo, F. Galindo Zaldívar, Jesús Maldonado, A. |
author_facet |
Bohoyo, F. Galindo Zaldívar, Jesús Maldonado, A. |
author_sort |
Bohoyo, F. |
title |
Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model |
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 |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
http://hdl.handle.net/10481/60146 https://doi.org/10.1080/17445647.2018.1543618 |
geographic |
Antarctic Antarctic Peninsula Drake Passage Pacific Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Drake Passage Pacific Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Drake Passage Scientific Committee on Antarctic Research Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Drake Passage Scientific Committee on Antarctic Research Southern Ocean |
op_relation |
F. Bohoyo, R. D. Larter, J. Galindo-Zaldívar, P. T. Leat, A. Maldonado, A. J. Tate, M. M. Flexas, E. J. M. Gowland, J. E. Arndt, B. Dorschel, Y. D. Kim, J. K. Hong, J. López-Martínez, A. Maestro, O. Bermúdez, F. O. Nitsche, R. A. Livermore & T. R. Riley (2019) Morphological and geological features of Drake Passage, Antarctica, from a new digital bathymetric model, Journal of Maps, 15:2, 49-59. http://hdl.handle.net/10481/60146 doi:10.1080/17445647.2018.1543618 |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1080/17445647.2018.1543618 |
container_title |
Journal of Maps |
container_volume |
15 |
container_issue |
2 |
container_start_page |
49 |
op_container_end_page |
59 |
_version_ |
1766189096265318400 |