Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean
Integrated interpretation of multi-beam bathymetric, sediment-penetrating acoustic (PARASOUND) and seismic data show a multiple slope failure on the northern European continental margin, north of Spitsbergen. The first slide event occurred during MIS 3 around 30 cal. ka BP and was characterised by h...
Published in: | Marine Geology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2008
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/3775/ https://oceanrep.geomar.de/id/eprint/3775/1/830_Winkelmann_2008_DynamicAndTimingOfThe_Artzeit_pubid12506.pdf https://doi.org/10.1016/j.margeo.2007.11.013 |
id |
ftoceanrep:oai:oceanrep.geomar.de:3775 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:3775 2024-09-30T14:28:00+00:00 Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean Winkelmann, Daniel Geissler, W. H. Schneider, Julia Stein, Rüdiger Schenke, H.-W. 2008 text https://oceanrep.geomar.de/id/eprint/3775/ https://oceanrep.geomar.de/id/eprint/3775/1/830_Winkelmann_2008_DynamicAndTimingOfThe_Artzeit_pubid12506.pdf https://doi.org/10.1016/j.margeo.2007.11.013 en eng Elsevier https://oceanrep.geomar.de/id/eprint/3775/1/830_Winkelmann_2008_DynamicAndTimingOfThe_Artzeit_pubid12506.pdf Winkelmann, D., Geissler, W. H., Schneider, J., Stein, R. and Schenke, H. W. (2008) Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean. Marine Geology, 250 (1/2). pp. 34-50. DOI 10.1016/j.margeo.2007.11.013 <https://doi.org/10.1016/j.margeo.2007.11.013>. doi:10.1016/j.margeo.2007.11.013 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2008 ftoceanrep https://doi.org/10.1016/j.margeo.2007.11.013 2024-09-04T05:04:40Z Integrated interpretation of multi-beam bathymetric, sediment-penetrating acoustic (PARASOUND) and seismic data show a multiple slope failure on the northern European continental margin, north of Spitsbergen. The first slide event occurred during MIS 3 around 30 cal. ka BP and was characterised by highly dynamic and rapid evacuation of ca. 1250 km3 of sediment from the lower to the upper part of the continental slope. During this event, headwalls up to 1600 m high were created and ca. 1150 km3 material from hemi-pelagic sediments and from the lower pre-existing trough mouth fan has been entrained and transported into the semi-enclosed Sophia Basin. This megaslide event was followed by a secondary evacuation of material to the Nansen Basin by funnelling of the debris through the channel between Polarstern Seamount and the adjacent continental slope. The main slide debris is overlain by a set of fining-upward sequences as evidence for the associated suspension cloud and following minor failure events. Subsequent adjustment of the eastern headwalls led to failure of rather soft sediments and creation of smaller debris flows that followed the main slide surficial topography. Discharge of the Hinlopen ice stream during the Last Glacial Maximum and the following deglaciation draped the central headwalls and created a fan deposit of glacigenic debris flows. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Nansen Basin Spitsbergen OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Marine Geology 250 1-2 34 50 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Integrated interpretation of multi-beam bathymetric, sediment-penetrating acoustic (PARASOUND) and seismic data show a multiple slope failure on the northern European continental margin, north of Spitsbergen. The first slide event occurred during MIS 3 around 30 cal. ka BP and was characterised by highly dynamic and rapid evacuation of ca. 1250 km3 of sediment from the lower to the upper part of the continental slope. During this event, headwalls up to 1600 m high were created and ca. 1150 km3 material from hemi-pelagic sediments and from the lower pre-existing trough mouth fan has been entrained and transported into the semi-enclosed Sophia Basin. This megaslide event was followed by a secondary evacuation of material to the Nansen Basin by funnelling of the debris through the channel between Polarstern Seamount and the adjacent continental slope. The main slide debris is overlain by a set of fining-upward sequences as evidence for the associated suspension cloud and following minor failure events. Subsequent adjustment of the eastern headwalls led to failure of rather soft sediments and creation of smaller debris flows that followed the main slide surficial topography. Discharge of the Hinlopen ice stream during the Last Glacial Maximum and the following deglaciation draped the central headwalls and created a fan deposit of glacigenic debris flows. |
format |
Article in Journal/Newspaper |
author |
Winkelmann, Daniel Geissler, W. H. Schneider, Julia Stein, Rüdiger Schenke, H.-W. |
spellingShingle |
Winkelmann, Daniel Geissler, W. H. Schneider, Julia Stein, Rüdiger Schenke, H.-W. Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean |
author_facet |
Winkelmann, Daniel Geissler, W. H. Schneider, Julia Stein, Rüdiger Schenke, H.-W. |
author_sort |
Winkelmann, Daniel |
title |
Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean |
title_short |
Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean |
title_full |
Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean |
title_fullStr |
Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean |
title_full_unstemmed |
Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean |
title_sort |
dynamic and timing of the hinlopen/yermak megaslide north of spitsbergen, arctic ocean |
publisher |
Elsevier |
publishDate |
2008 |
url |
https://oceanrep.geomar.de/id/eprint/3775/ https://oceanrep.geomar.de/id/eprint/3775/1/830_Winkelmann_2008_DynamicAndTimingOfThe_Artzeit_pubid12506.pdf https://doi.org/10.1016/j.margeo.2007.11.013 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Nansen Basin Spitsbergen |
genre_facet |
Arctic Arctic Arctic Ocean Nansen Basin Spitsbergen |
op_relation |
https://oceanrep.geomar.de/id/eprint/3775/1/830_Winkelmann_2008_DynamicAndTimingOfThe_Artzeit_pubid12506.pdf Winkelmann, D., Geissler, W. H., Schneider, J., Stein, R. and Schenke, H. W. (2008) Dynamic and timing of the Hinlopen/Yermak Megaslide north of Spitsbergen, Arctic Ocean. Marine Geology, 250 (1/2). pp. 34-50. DOI 10.1016/j.margeo.2007.11.013 <https://doi.org/10.1016/j.margeo.2007.11.013>. doi:10.1016/j.margeo.2007.11.013 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.margeo.2007.11.013 |
container_title |
Marine Geology |
container_volume |
250 |
container_issue |
1-2 |
container_start_page |
34 |
op_container_end_page |
50 |
_version_ |
1811633892455612416 |