The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools
The paper concerns GMT application for studies of the geophysical and geomorphological settings of the Weddell Sea. Its western part is occupied by the back-arc basin developed during geologic evolution of the Antarctic. The mapping presents geophysical settings reflecting tectonic formation of the...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/363996 2023-11-12T04:06:23+01:00 The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools Lemenkova, Polina 2021-04-13 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/363996 https://dipot.ulb.ac.be/dspace/bitstream/2013/363996/3/2_Lemenkova.pdf en eng uri/info:doi/10.24425/sq.2020.133759 https://dipot.ulb.ac.be/dspace/bitstream/2013/363996/3/2_Lemenkova.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/363996 1 full-text file(s): info:eu-repo/semantics/openAccess Studia Quaternaria, 38 (1 Sciences exactes et naturelles Sciences de la terre et du cosmos Cartographie Géodynamique et tectonique Géodésie Gravimétrie Géomorphologie et orographie Physique du globe Systèmes d'information géographique Géologie Sciences de l'ingénieur Programmation et méthodes de simulation Méthodologie de la recherche scientifique Weddell Sea Antarctic GMT Cartography Geophysics info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2021 ftunivbruxelles 2023-10-25T22:23:36Z The paper concerns GMT application for studies of the geophysical and geomorphological settings of the Weddell Sea. Its western part is occupied by the back-arc basin developed during geologic evolution of the Antarctic. The mapping presents geophysical settings reflecting tectonic formation of the region, glaciomarine sediment distribution and the bathymetry. The GlobSed grid highlighted the abnormally large thickness of sedimentary strata resulted from the long lasting sedimentation and great subsidence ratio. The sediment thickness indicated significant influx (>13,000m) in the southern segment. Values of 6,000-7,000 m along the peninsula indicate stability of the sediments influx. The northern end of the Filchner Trough shows increased sediment supply. The topography shows variability-7,160-4,763 m. The ridges in the northern segment and gravity anomalies (>75 mGal) show parallel lines stretching NW-SE (10°-45°W, 60°-67°S) which points at the effects of regional topography. The basin is dominated by the slightly negative gravity >-30 mGal. The geoid model shows a SW-NE trend with the lowest values <18 m in the south, the highest values >20m in the NE and along the Coats Land. The ripples in the north follow the geometry of the submarine ridges and channels proving correlation with topography and gravitational equipotential surface. SCOPUS ar.j. info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Weddell Sea DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic The Antarctic Weddell Sea Weddell Filchner Trough ENVELOPE(-36.000,-36.000,-77.000,-77.000) Coats Land ENVELOPE(-27.500,-27.500,-77.000,-77.000) Géodésie ENVELOPE(139.846,139.846,-66.675,-66.675) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles Sciences de la terre et du cosmos Cartographie Géodynamique et tectonique Géodésie Gravimétrie Géomorphologie et orographie Physique du globe Systèmes d'information géographique Géologie Sciences de l'ingénieur Programmation et méthodes de simulation Méthodologie de la recherche scientifique Weddell Sea Antarctic GMT Cartography Geophysics |
spellingShingle |
Sciences exactes et naturelles Sciences de la terre et du cosmos Cartographie Géodynamique et tectonique Géodésie Gravimétrie Géomorphologie et orographie Physique du globe Systèmes d'information géographique Géologie Sciences de l'ingénieur Programmation et méthodes de simulation Méthodologie de la recherche scientifique Weddell Sea Antarctic GMT Cartography Geophysics Lemenkova, Polina The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools |
topic_facet |
Sciences exactes et naturelles Sciences de la terre et du cosmos Cartographie Géodynamique et tectonique Géodésie Gravimétrie Géomorphologie et orographie Physique du globe Systèmes d'information géographique Géologie Sciences de l'ingénieur Programmation et méthodes de simulation Méthodologie de la recherche scientifique Weddell Sea Antarctic GMT Cartography Geophysics |
description |
The paper concerns GMT application for studies of the geophysical and geomorphological settings of the Weddell Sea. Its western part is occupied by the back-arc basin developed during geologic evolution of the Antarctic. The mapping presents geophysical settings reflecting tectonic formation of the region, glaciomarine sediment distribution and the bathymetry. The GlobSed grid highlighted the abnormally large thickness of sedimentary strata resulted from the long lasting sedimentation and great subsidence ratio. The sediment thickness indicated significant influx (>13,000m) in the southern segment. Values of 6,000-7,000 m along the peninsula indicate stability of the sediments influx. The northern end of the Filchner Trough shows increased sediment supply. The topography shows variability-7,160-4,763 m. The ridges in the northern segment and gravity anomalies (>75 mGal) show parallel lines stretching NW-SE (10°-45°W, 60°-67°S) which points at the effects of regional topography. The basin is dominated by the slightly negative gravity >-30 mGal. The geoid model shows a SW-NE trend with the lowest values <18 m in the south, the highest values >20m in the NE and along the Coats Land. The ripples in the north follow the geometry of the submarine ridges and channels proving correlation with topography and gravitational equipotential surface. SCOPUS ar.j. info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Lemenkova, Polina |
author_facet |
Lemenkova, Polina |
author_sort |
Lemenkova, Polina |
title |
The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools |
title_short |
The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools |
title_full |
The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools |
title_fullStr |
The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools |
title_full_unstemmed |
The visualization of geophysical and geomorphologic data from the area of Weddell Sea by the Generic Mapping Tools |
title_sort |
visualization of geophysical and geomorphologic data from the area of weddell sea by the generic mapping tools |
publishDate |
2021 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/363996 https://dipot.ulb.ac.be/dspace/bitstream/2013/363996/3/2_Lemenkova.pdf |
long_lat |
ENVELOPE(-36.000,-36.000,-77.000,-77.000) ENVELOPE(-27.500,-27.500,-77.000,-77.000) ENVELOPE(139.846,139.846,-66.675,-66.675) |
geographic |
Antarctic The Antarctic Weddell Sea Weddell Filchner Trough Coats Land Géodésie |
geographic_facet |
Antarctic The Antarctic Weddell Sea Weddell Filchner Trough Coats Land Géodésie |
genre |
Antarc* Antarctic Weddell Sea |
genre_facet |
Antarc* Antarctic Weddell Sea |
op_source |
Studia Quaternaria, 38 (1 |
op_relation |
uri/info:doi/10.24425/sq.2020.133759 https://dipot.ulb.ac.be/dspace/bitstream/2013/363996/3/2_Lemenkova.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/363996 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1782327467520819200 |