Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea)
Özmaral, A. . et al.-- II Palaeo-Arctic Spatial and Temporal Gateways (PAST Gateways) International Conference and Workshop, 19-23 May 2014, Trieste.-- 1 page Swath bathymetry within Kveithola Trough (NW Barents Sea) shows a seafloor characterized by E-W trending megascale glacial lineations (MSGLs)...
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Istituto Nazionale di Oceanografia e Geofisica Sperimentale
2014
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ftcsic:oai:digital.csic.es:10261/125314 2024-02-11T10:01:17+01:00 Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) Özmaral, A. Urgeles, Roger Llopart, Jaume Camerlenghi, Angelo 2014-05-19 http://hdl.handle.net/10261/125314 unknown Istituto Nazionale di Oceanografia e Geofisica Sperimentale http://www.geol.lu.se/pastgateways/index.htm Sí isbn: 978-88-902101-4-3 Proceedings of the II PAST Gateways International Conference and Workshop: 64 (2014) http://hdl.handle.net/10261/125314 none póster de congreso http://purl.org/coar/resource_type/c_6670 2014 ftcsic 2024-01-16T10:12:04Z Özmaral, A. . et al.-- II Palaeo-Arctic Spatial and Temporal Gateways (PAST Gateways) International Conference and Workshop, 19-23 May 2014, Trieste.-- 1 page Swath bathymetry within Kveithola Trough (NW Barents Sea) shows a seafloor characterized by E-W trending megascale glacial lineations (MSGLs) overprinted by transverse Grounding Zone Wedges (GZWs), which give the trough a stair profile (Rebesco et al., 2011). GZWs are formed by deposition of subglacial till at temporarily stable ice-stream fronts in between successive episodic retreats (Rüther et al., 2012; Bjarnadóttir et al., 2012). Sub-bottom data show that present-day morphology is largely inherited from palaeo-seafloor topography of GZWs, which is draped by a deglacial to early Holocene glaciomarine sediments (about 15 m thick). The ice stream that produced such subglacial morphology was flowing from East to West inside Kveithola Trough during Last Glacial Maximum. Its rapid retreat was likely associated with progressive lift-offs, and successive rapid melting of the grounded ice, induced by the eustatic sea-level rise (Lucchi et al., 2013) Peer Reviewed Still Image Arctic Barents Sea Digital.CSIC (Spanish National Research Council) Arctic Barents Sea |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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description |
Özmaral, A. . et al.-- II Palaeo-Arctic Spatial and Temporal Gateways (PAST Gateways) International Conference and Workshop, 19-23 May 2014, Trieste.-- 1 page Swath bathymetry within Kveithola Trough (NW Barents Sea) shows a seafloor characterized by E-W trending megascale glacial lineations (MSGLs) overprinted by transverse Grounding Zone Wedges (GZWs), which give the trough a stair profile (Rebesco et al., 2011). GZWs are formed by deposition of subglacial till at temporarily stable ice-stream fronts in between successive episodic retreats (Rüther et al., 2012; Bjarnadóttir et al., 2012). Sub-bottom data show that present-day morphology is largely inherited from palaeo-seafloor topography of GZWs, which is draped by a deglacial to early Holocene glaciomarine sediments (about 15 m thick). The ice stream that produced such subglacial morphology was flowing from East to West inside Kveithola Trough during Last Glacial Maximum. Its rapid retreat was likely associated with progressive lift-offs, and successive rapid melting of the grounded ice, induced by the eustatic sea-level rise (Lucchi et al., 2013) Peer Reviewed |
format |
Still Image |
author |
Özmaral, A. Urgeles, Roger Llopart, Jaume Camerlenghi, Angelo |
spellingShingle |
Özmaral, A. Urgeles, Roger Llopart, Jaume Camerlenghi, Angelo Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) |
author_facet |
Özmaral, A. Urgeles, Roger Llopart, Jaume Camerlenghi, Angelo |
author_sort |
Özmaral, A. |
title |
Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) |
title_short |
Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) |
title_full |
Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) |
title_fullStr |
Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) |
title_full_unstemmed |
Grounding Zone Wedges, Kveithola Trough (Nw Barents Sea) |
title_sort |
grounding zone wedges, kveithola trough (nw barents sea) |
publisher |
Istituto Nazionale di Oceanografia e Geofisica Sperimentale |
publishDate |
2014 |
url |
http://hdl.handle.net/10261/125314 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea |
genre_facet |
Arctic Barents Sea |
op_relation |
http://www.geol.lu.se/pastgateways/index.htm Sí isbn: 978-88-902101-4-3 Proceedings of the II PAST Gateways International Conference and Workshop: 64 (2014) http://hdl.handle.net/10261/125314 |
op_rights |
none |
_version_ |
1790597074160451584 |