Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets
The volcanic Kerguelen Islands are formed on one of the world’s largest submarine plateaus. Located in the remote segment of the southern Indian Ocean close to Antarctica, the Kerguelen Plateau is notable for a complex tectonic origin and geologic formation related to the Cretaceous history of the c...
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2023
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Online Access: | https://doi.org/10.3390/geomatics3030022 https://eplus.uni-salzburg.at/doi/10.3390/geomatics3030022 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-29099 |
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ftunivsalzburg:oai:eplus.uni-salzburg.at:9216940 2023-11-12T04:02:00+01:00 Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets Lemenkova, Polina 38.09 38.19 38.03 74.17 38.99 74.13 38.79 38.55 38.90 38.48 38.49 38.71 74.28 38.17 PLUS:IFFB:ZGIS 2023 text/html https://doi.org/10.3390/geomatics3030022 https://eplus.uni-salzburg.at/doi/10.3390/geomatics3030022 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-29099 eng eng MDPI vignette : https://eplus.uni-salzburg.at/titlepage/urn/urn:nbn:at:at-ubs:3-29099/128 vignette : https://eplus.uni-salzburg.at/titlepage/doi/10.3390/geomatics3030022/128 2673-7418 doi:10.3390/geomatics3030022 https://eplus.uni-salzburg.at/doi/10.3390/geomatics3030022 urn:nbn:at:at-ubs:3-29099 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-29099 local:99147708432003331 system:AC16972409 cc-by_4 Antarktis Südlicher Ozean Bathymetrie Französische Süd- und Antarktisgebiete Kartographie Satellitenhöhenmessung Meeresgeophysik Sedimente magnetische Anomalien Meeresboden Antarctic Southern Ocean bathymetry French Southern and Antarctic Lands cartography satellite altimetry marine geophysics sediments magnetic anomalies seafloor Text Article 2023 ftunivsalzburg https://doi.org/10.3390/geomatics3030022 2023-10-22T23:34:01Z The volcanic Kerguelen Islands are formed on one of the world’s largest submarine plateaus. Located in the remote segment of the southern Indian Ocean close to Antarctica, the Kerguelen Plateau is notable for a complex tectonic origin and geologic formation related to the Cretaceous history of the continents. This is reflected in the varying age of the oceanic crust adjacent to the plateau and the highly heterogeneous bathymetry of the Kerguelen Plateau, with seafloor structure differing for the southern and northern segments. Remote sensing data derived from marine gravity and satellite radar altimetry surveys serve as an important source of information for mapping complex seafloor features. This study incorporates geospatial information from NOAA, EMAG2, WDMAM, ETOPO1, and EGM96 datasets to refine the extent and distribution of the extracted seafloor features. The cartographic joint analysis of topography, magnetic anomalies, tectonic and gravity grids is based on the integrated mapping performed using the Generic Mapping Tools (GMT) programming suite. Mapping of the submerged features (Broken Ridge, Crozet Islands, seafloor fabric, orientation, and frequency of magnetic anomalies) enables analysis of their correspondence with free-air gravity and magnetic anomalies, geodynamic setting, and seabed structure in the southwest Indian Ocean. The results show that integrating the datasets using advanced cartographic scripting language improves identification and visualization of the seabed objects. The results include 11 new maps of the region covering the Kerguelen Plateau and southwest Indian Ocean. This study contributes to increasing the knowledge of the seafloor structure in the French Southern and Antarctic Lands. Article in Journal/Newspaper Antarc* Antarctic Antarctica Antarktis* Crozet Islands Kerguelen Islands Southern Ocean ePLUS - Open Access Publikationsserver der Universität Salzburg Antarctic Broken Ridge ENVELOPE(-92.318,-92.318,79.552,79.552) Indian Kerguelen Kerguelen Islands Southern Ocean Geomatics 3 3 393 426 |
institution |
Open Polar |
collection |
ePLUS - Open Access Publikationsserver der Universität Salzburg |
op_collection_id |
ftunivsalzburg |
language |
English |
topic |
Antarktis Südlicher Ozean Bathymetrie Französische Süd- und Antarktisgebiete Kartographie Satellitenhöhenmessung Meeresgeophysik Sedimente magnetische Anomalien Meeresboden Antarctic Southern Ocean bathymetry French Southern and Antarctic Lands cartography satellite altimetry marine geophysics sediments magnetic anomalies seafloor |
spellingShingle |
Antarktis Südlicher Ozean Bathymetrie Französische Süd- und Antarktisgebiete Kartographie Satellitenhöhenmessung Meeresgeophysik Sedimente magnetische Anomalien Meeresboden Antarctic Southern Ocean bathymetry French Southern and Antarctic Lands cartography satellite altimetry marine geophysics sediments magnetic anomalies seafloor Lemenkova, Polina Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets |
topic_facet |
Antarktis Südlicher Ozean Bathymetrie Französische Süd- und Antarktisgebiete Kartographie Satellitenhöhenmessung Meeresgeophysik Sedimente magnetische Anomalien Meeresboden Antarctic Southern Ocean bathymetry French Southern and Antarctic Lands cartography satellite altimetry marine geophysics sediments magnetic anomalies seafloor |
description |
The volcanic Kerguelen Islands are formed on one of the world’s largest submarine plateaus. Located in the remote segment of the southern Indian Ocean close to Antarctica, the Kerguelen Plateau is notable for a complex tectonic origin and geologic formation related to the Cretaceous history of the continents. This is reflected in the varying age of the oceanic crust adjacent to the plateau and the highly heterogeneous bathymetry of the Kerguelen Plateau, with seafloor structure differing for the southern and northern segments. Remote sensing data derived from marine gravity and satellite radar altimetry surveys serve as an important source of information for mapping complex seafloor features. This study incorporates geospatial information from NOAA, EMAG2, WDMAM, ETOPO1, and EGM96 datasets to refine the extent and distribution of the extracted seafloor features. The cartographic joint analysis of topography, magnetic anomalies, tectonic and gravity grids is based on the integrated mapping performed using the Generic Mapping Tools (GMT) programming suite. Mapping of the submerged features (Broken Ridge, Crozet Islands, seafloor fabric, orientation, and frequency of magnetic anomalies) enables analysis of their correspondence with free-air gravity and magnetic anomalies, geodynamic setting, and seabed structure in the southwest Indian Ocean. The results show that integrating the datasets using advanced cartographic scripting language improves identification and visualization of the seabed objects. The results include 11 new maps of the region covering the Kerguelen Plateau and southwest Indian Ocean. This study contributes to increasing the knowledge of the seafloor structure in the French Southern and Antarctic Lands. |
format |
Article in Journal/Newspaper |
author |
Lemenkova, Polina |
author_facet |
Lemenkova, Polina |
author_sort |
Lemenkova, Polina |
title |
Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets |
title_short |
Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets |
title_full |
Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets |
title_fullStr |
Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets |
title_full_unstemmed |
Geomatics / Seafloor and Ocean Crust Structure of the Kerguelen Plateau from Marine Geophysical and Satellite Altimetry Datasets |
title_sort |
geomatics / seafloor and ocean crust structure of the kerguelen plateau from marine geophysical and satellite altimetry datasets |
publisher |
MDPI |
publishDate |
2023 |
url |
https://doi.org/10.3390/geomatics3030022 https://eplus.uni-salzburg.at/doi/10.3390/geomatics3030022 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-29099 |
op_coverage |
38.09 38.19 38.03 74.17 38.99 74.13 38.79 38.55 38.90 38.48 38.49 38.71 74.28 38.17 PLUS:IFFB:ZGIS |
long_lat |
ENVELOPE(-92.318,-92.318,79.552,79.552) |
geographic |
Antarctic Broken Ridge Indian Kerguelen Kerguelen Islands Southern Ocean |
geographic_facet |
Antarctic Broken Ridge Indian Kerguelen Kerguelen Islands Southern Ocean |
genre |
Antarc* Antarctic Antarctica Antarktis* Crozet Islands Kerguelen Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Antarktis* Crozet Islands Kerguelen Islands Southern Ocean |
op_relation |
vignette : https://eplus.uni-salzburg.at/titlepage/urn/urn:nbn:at:at-ubs:3-29099/128 vignette : https://eplus.uni-salzburg.at/titlepage/doi/10.3390/geomatics3030022/128 2673-7418 doi:10.3390/geomatics3030022 https://eplus.uni-salzburg.at/doi/10.3390/geomatics3030022 urn:nbn:at:at-ubs:3-29099 https://resolver.obvsg.at/urn:nbn:at:at-ubs:3-29099 local:99147708432003331 system:AC16972409 |
op_rights |
cc-by_4 |
op_doi |
https://doi.org/10.3390/geomatics3030022 |
container_title |
Geomatics |
container_volume |
3 |
container_issue |
3 |
container_start_page |
393 |
op_container_end_page |
426 |
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1782333569568342016 |