Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway
High-resolution swath-bathymetry data integrated with sub-bottom profiles and single-channel seismics reveal an 18 km long, up to 1000 m wide and 10-15 m deep crack located approx. 4 km upslope from a slide scar on the continental slope off northern Norway. This crack is formed by subsidence of the...
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Language: | English |
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Online Access: | https://hdl.handle.net/10037/12944 https://doi.org/10.1016/j.margeo.2013.08.008 |
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ftunivtroemsoe:oai:munin.uit.no:10037/12944 2023-05-15T17:43:21+02:00 Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway Laberg, Jan Sverre Baeten, Nicole Jeanne Lågstad, Petter Arthur Forwick, Matthias Vorren, Tore Ola 2013-08-30 https://hdl.handle.net/10037/12944 https://doi.org/10.1016/j.margeo.2013.08.008 eng eng Elsevier Marine Geology Norges forskningsråd: 193343 Laberg, J.S., Baeten, N.J., Lågstad, P.A., Forwick, M. & Vorren, T.O. (2013). Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway. Marine Geology. 346:73-78. https://doi.org/10.1016/j.margeo.2013.08.008 FRIDAID 1081336 doi:10.1016/j.margeo.2013.08.008 0025-3227 1872-6151 https://hdl.handle.net/10037/12944 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 crack submarine landslide retrogressive contourites Norway Journal article Tidsskriftartikkel Peer reviewed 2013 ftunivtroemsoe https://doi.org/10.1016/j.margeo.2013.08.008 2021-06-25T17:55:27Z High-resolution swath-bathymetry data integrated with sub-bottom profiles and single-channel seismics reveal an 18 km long, up to 1000 m wide and 10-15 m deep crack located approx. 4 km upslope from a slide scar on the continental slope off northern Norway. This crack is formed by subsidence of the sea-floor sediments to a depth of 120 m due to downslope movement of a ~80 km2 large sediment slab that represents the final stage of retrogressive mass wasting in this area. From its morphological freshness, the crack this is inferred to have formed sometime during the last 13 cal. ka BP. These findings add to our understanding of the origin of sea floor cracks on passive continental margins where explanations as slip of normal faults or gas expulsion from the dissociation of gas hydrates previously have been suggested for the formation of cracks in similar settings. Article in Journal/Newspaper Northern Norway University of Tromsø: Munin Open Research Archive Norway Marine Geology 346 73 78 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 crack submarine landslide retrogressive contourites Norway |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 crack submarine landslide retrogressive contourites Norway Laberg, Jan Sverre Baeten, Nicole Jeanne Lågstad, Petter Arthur Forwick, Matthias Vorren, Tore Ola Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450 VDP::Mathematics and natural science: 400::Geosciences: 450 crack submarine landslide retrogressive contourites Norway |
description |
High-resolution swath-bathymetry data integrated with sub-bottom profiles and single-channel seismics reveal an 18 km long, up to 1000 m wide and 10-15 m deep crack located approx. 4 km upslope from a slide scar on the continental slope off northern Norway. This crack is formed by subsidence of the sea-floor sediments to a depth of 120 m due to downslope movement of a ~80 km2 large sediment slab that represents the final stage of retrogressive mass wasting in this area. From its morphological freshness, the crack this is inferred to have formed sometime during the last 13 cal. ka BP. These findings add to our understanding of the origin of sea floor cracks on passive continental margins where explanations as slip of normal faults or gas expulsion from the dissociation of gas hydrates previously have been suggested for the formation of cracks in similar settings. |
format |
Article in Journal/Newspaper |
author |
Laberg, Jan Sverre Baeten, Nicole Jeanne Lågstad, Petter Arthur Forwick, Matthias Vorren, Tore Ola |
author_facet |
Laberg, Jan Sverre Baeten, Nicole Jeanne Lågstad, Petter Arthur Forwick, Matthias Vorren, Tore Ola |
author_sort |
Laberg, Jan Sverre |
title |
Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway |
title_short |
Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway |
title_full |
Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway |
title_fullStr |
Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway |
title_full_unstemmed |
Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway |
title_sort |
formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern norway |
publisher |
Elsevier |
publishDate |
2013 |
url |
https://hdl.handle.net/10037/12944 https://doi.org/10.1016/j.margeo.2013.08.008 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_relation |
Marine Geology Norges forskningsråd: 193343 Laberg, J.S., Baeten, N.J., Lågstad, P.A., Forwick, M. & Vorren, T.O. (2013). Formation of a large submarine crack during the final stage of retrogressive mass wasting on the continental slope offshore northern Norway. Marine Geology. 346:73-78. https://doi.org/10.1016/j.margeo.2013.08.008 FRIDAID 1081336 doi:10.1016/j.margeo.2013.08.008 0025-3227 1872-6151 https://hdl.handle.net/10037/12944 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1016/j.margeo.2013.08.008 |
container_title |
Marine Geology |
container_volume |
346 |
container_start_page |
73 |
op_container_end_page |
78 |
_version_ |
1766145388666945536 |