Late Pliocene–early Pleistocene deep‐sea basin sedimentation at high‐latitudes: mega‐scale submarine slides of the north‐western Barents Sea margin prior to the shelf‐edge glaciations
At high‐latitude continental margins, large‐scale submarine sliding has been an important process for deep‐sea sediment transfer during glacial and interglacial periods. Little is, however, known about the importance of this process prior to the arrival of the ice sheet on the continental shelf. Bas...
Gespeichert in:
Veröffentlicht in: | Basin research 2017-02, Vol.29 (S1), p.537-555 |
---|---|
Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 555 |
---|---|
container_issue | S1 |
container_start_page | 537 |
container_title | Basin research |
container_volume | 29 |
creator | Safronova, P. A. Laberg, J. S. Andreassen, K. Shlykova, V. Vorren, T. O. Chernikov, S. |
description | At high‐latitude continental margins, large‐scale submarine sliding has been an important process for deep‐sea sediment transfer during glacial and interglacial periods. Little is, however, known about the importance of this process prior to the arrival of the ice sheet on the continental shelf. Based on new two‐dimensional seismic data from the NW Barents Sea continental margin, this study documents the presence of thick and regionally extensive submarine slides formed between 2.7 and 2.1 Ma, before shelf‐edge glaciation. The largest submarine slide, located in the northern part of the Storfjorden Trough Mouth Fan (TMF), left a scar and is characterized by an at least 870‐m‐thick interval of chaotic to reflection‐free seismic facies interpreted as debrites. The full extent of this slide debrite 1 is yet unknown but it has a mapped areal distribution of at least 10.7 × 103 km2 and it involved >4.1 × 103 km3 of sediments. It remobilized a larger sediment volume than one of the largest exposed submarine slides in the world – the Storegga Slide in the Norwegian Sea. In the southern part of the Storfjorden TMF and along the Kveithola TMF, the seismic data reveal at least four large‐scale slide debrites, characterized by seismic facies similar to the slide debrite 1. Each of them is ca. 295‐m thick, covers an area of at least 7.04 × 103 km2 and involved 1.1 × 103 km3 of sediments. These five submarine slide debrites represent approximately one quarter of the total volume of sediments deposited during the time 2.7–1.5 Ma along the NW Barents Sea. The preconditioning factors for submarine sliding in this area probably included deposition at high sedimentation rate, some of which may have occurred in periods of low eustatic sea‐level. Intervals of weak contouritic sediments might also have contributed to the instability of part of the slope succession as these deposits are known from other parts of the Norwegian margin and elsewhere to have the potential to act as weak layers. Triggering was probably caused by seismicity associated with the nearby and active Knipovich spreading ridge and/or the old tectonic lineaments within the Spitsbergen Shear Zone. This seismicity is inferred to be the main influence of the large‐scale sliding in this area as this and previous studies have documented that sliding have occurred independently of climatic variations, i.e. both before and during the period of ice sheets repeatedly covering the continental shelf. |
doi_str_mv | 10.1111/bre.12161 |
format | Article |
fullrecord | <record><control><sourceid>proquest_crist</sourceid><recordid>TN_cdi_cristin_nora_10037_13712</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>4307807941</sourcerecordid><originalsourceid>FETCH-LOGICAL-a3791-326af6075a50d28aa510b83374e010556b4d79a314434ad43a53139126f4ce753</originalsourceid><addsrcrecordid>eNp1kU2O1DAQhS0EEs3AghNgiRWLzLji2OmwY0bDj9QSiB-JnVVJKmmP3EljuzXq3RwBiSNxkzkJ1d2wxBtL5e-9qucS4jmoc-Bz0UY6hxIsPBAL0NYUJUD9UCxUY1ShGvj-WDxJ6UYptTQAC_F7hZnkp-Dnjia6v_tFGMOeC-RTPtZkT7S9v_uZCGWLyU8yUe83NGXMfp4kZrn245qJwIW86ym9lhsa8aDpMJBMu3aD0bNVCp6f5TzIvCY5zTEfdLeUMsVJXmJk1yS_cCcWjNxqG_0cZZ6PfFpTGJinfiQ5Buz8cYL0VDwaMCR69vc-E9_eXn-9el-sPr77cPVmVaCuGyh0aXGwqjZoVF8uEQ2odql1XZECZYxtq75uUENV6Qr7SqPRoBso7VB1VBt9Jl6cfLvIn-MnxwHQgVK6dqBrKJl4eSK2cf6x41juZt7FiYdysLRgja0ay9Srfz5zSpEGxzE58J693GGLjrfojltk9uLE3vpA-_-D7vLz9UnxB3VgpY0</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1861656496</pqid></control><display><type>article</type><title>Late Pliocene–early Pleistocene deep‐sea basin sedimentation at high‐latitudes: mega‐scale submarine slides of the north‐western Barents Sea margin prior to the shelf‐edge glaciations</title><source>Wiley-Blackwell Journals</source><source>NORA - Norwegian Open Research Archives</source><creator>Safronova, P. A. ; Laberg, J. S. ; Andreassen, K. ; Shlykova, V. ; Vorren, T. O. ; Chernikov, S.</creator><creatorcontrib>Safronova, P. A. ; Laberg, J. S. ; Andreassen, K. ; Shlykova, V. ; Vorren, T. O. ; Chernikov, S.</creatorcontrib><description>At high‐latitude continental margins, large‐scale submarine sliding has been an important process for deep‐sea sediment transfer during glacial and interglacial periods. Little is, however, known about the importance of this process prior to the arrival of the ice sheet on the continental shelf. Based on new two‐dimensional seismic data from the NW Barents Sea continental margin, this study documents the presence of thick and regionally extensive submarine slides formed between 2.7 and 2.1 Ma, before shelf‐edge glaciation. The largest submarine slide, located in the northern part of the Storfjorden Trough Mouth Fan (TMF), left a scar and is characterized by an at least 870‐m‐thick interval of chaotic to reflection‐free seismic facies interpreted as debrites. The full extent of this slide debrite 1 is yet unknown but it has a mapped areal distribution of at least 10.7 × 103 km2 and it involved >4.1 × 103 km3 of sediments. It remobilized a larger sediment volume than one of the largest exposed submarine slides in the world – the Storegga Slide in the Norwegian Sea. In the southern part of the Storfjorden TMF and along the Kveithola TMF, the seismic data reveal at least four large‐scale slide debrites, characterized by seismic facies similar to the slide debrite 1. Each of them is ca. 295‐m thick, covers an area of at least 7.04 × 103 km2 and involved 1.1 × 103 km3 of sediments. These five submarine slide debrites represent approximately one quarter of the total volume of sediments deposited during the time 2.7–1.5 Ma along the NW Barents Sea. The preconditioning factors for submarine sliding in this area probably included deposition at high sedimentation rate, some of which may have occurred in periods of low eustatic sea‐level. Intervals of weak contouritic sediments might also have contributed to the instability of part of the slope succession as these deposits are known from other parts of the Norwegian margin and elsewhere to have the potential to act as weak layers. Triggering was probably caused by seismicity associated with the nearby and active Knipovich spreading ridge and/or the old tectonic lineaments within the Spitsbergen Shear Zone. This seismicity is inferred to be the main influence of the large‐scale sliding in this area as this and previous studies have documented that sliding have occurred independently of climatic variations, i.e. both before and during the period of ice sheets repeatedly covering the continental shelf.</description><identifier>ISSN: 0950-091X</identifier><identifier>ISSN: 1365-2117</identifier><identifier>EISSN: 1365-2117</identifier><identifier>DOI: 10.1111/bre.12161</identifier><language>eng</language><publisher>Oxford: Wiley Subscription Services, Inc</publisher><subject>Geofag: 450 ; Geosciences: 450 ; Matematikk og Naturvitenskap: 400 ; Mathematics and natural science: 400 ; Sedimentologi: 456 ; Sedimentology: 456 ; VDP</subject><ispartof>Basin research, 2017-02, Vol.29 (S1), p.537-555</ispartof><rights>2015 The Authors. Basin Research © 2015 John Wiley & Sons Ltd, European Association of Geoscientists & Engineers and International Association of Sedimentologists</rights><rights>Basin Research © 2017 John Wiley & Sons Ltd, European Association of Geoscientists & Engineers and International Association of Sedimentologists</rights><rights>info:eu-repo/semantics/openAccess</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a3791-326af6075a50d28aa510b83374e010556b4d79a314434ad43a53139126f4ce753</citedby><cites>FETCH-LOGICAL-a3791-326af6075a50d28aa510b83374e010556b4d79a314434ad43a53139126f4ce753</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fbre.12161$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fbre.12161$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,26567,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Safronova, P. A.</creatorcontrib><creatorcontrib>Laberg, J. S.</creatorcontrib><creatorcontrib>Andreassen, K.</creatorcontrib><creatorcontrib>Shlykova, V.</creatorcontrib><creatorcontrib>Vorren, T. O.</creatorcontrib><creatorcontrib>Chernikov, S.</creatorcontrib><title>Late Pliocene–early Pleistocene deep‐sea basin sedimentation at high‐latitudes: mega‐scale submarine slides of the north‐western Barents Sea margin prior to the shelf‐edge glaciations</title><title>Basin research</title><description>At high‐latitude continental margins, large‐scale submarine sliding has been an important process for deep‐sea sediment transfer during glacial and interglacial periods. Little is, however, known about the importance of this process prior to the arrival of the ice sheet on the continental shelf. Based on new two‐dimensional seismic data from the NW Barents Sea continental margin, this study documents the presence of thick and regionally extensive submarine slides formed between 2.7 and 2.1 Ma, before shelf‐edge glaciation. The largest submarine slide, located in the northern part of the Storfjorden Trough Mouth Fan (TMF), left a scar and is characterized by an at least 870‐m‐thick interval of chaotic to reflection‐free seismic facies interpreted as debrites. The full extent of this slide debrite 1 is yet unknown but it has a mapped areal distribution of at least 10.7 × 103 km2 and it involved >4.1 × 103 km3 of sediments. It remobilized a larger sediment volume than one of the largest exposed submarine slides in the world – the Storegga Slide in the Norwegian Sea. In the southern part of the Storfjorden TMF and along the Kveithola TMF, the seismic data reveal at least four large‐scale slide debrites, characterized by seismic facies similar to the slide debrite 1. Each of them is ca. 295‐m thick, covers an area of at least 7.04 × 103 km2 and involved 1.1 × 103 km3 of sediments. These five submarine slide debrites represent approximately one quarter of the total volume of sediments deposited during the time 2.7–1.5 Ma along the NW Barents Sea. The preconditioning factors for submarine sliding in this area probably included deposition at high sedimentation rate, some of which may have occurred in periods of low eustatic sea‐level. Intervals of weak contouritic sediments might also have contributed to the instability of part of the slope succession as these deposits are known from other parts of the Norwegian margin and elsewhere to have the potential to act as weak layers. Triggering was probably caused by seismicity associated with the nearby and active Knipovich spreading ridge and/or the old tectonic lineaments within the Spitsbergen Shear Zone. This seismicity is inferred to be the main influence of the large‐scale sliding in this area as this and previous studies have documented that sliding have occurred independently of climatic variations, i.e. both before and during the period of ice sheets repeatedly covering the continental shelf.</description><subject>Geofag: 450</subject><subject>Geosciences: 450</subject><subject>Matematikk og Naturvitenskap: 400</subject><subject>Mathematics and natural science: 400</subject><subject>Sedimentologi: 456</subject><subject>Sedimentology: 456</subject><subject>VDP</subject><issn>0950-091X</issn><issn>1365-2117</issn><issn>1365-2117</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>3HK</sourceid><recordid>eNp1kU2O1DAQhS0EEs3AghNgiRWLzLji2OmwY0bDj9QSiB-JnVVJKmmP3EljuzXq3RwBiSNxkzkJ1d2wxBtL5e-9qucS4jmoc-Bz0UY6hxIsPBAL0NYUJUD9UCxUY1ShGvj-WDxJ6UYptTQAC_F7hZnkp-Dnjia6v_tFGMOeC-RTPtZkT7S9v_uZCGWLyU8yUe83NGXMfp4kZrn245qJwIW86ym9lhsa8aDpMJBMu3aD0bNVCp6f5TzIvCY5zTEfdLeUMsVJXmJk1yS_cCcWjNxqG_0cZZ6PfFpTGJinfiQ5Buz8cYL0VDwaMCR69vc-E9_eXn-9el-sPr77cPVmVaCuGyh0aXGwqjZoVF8uEQ2odql1XZECZYxtq75uUENV6Qr7SqPRoBso7VB1VBt9Jl6cfLvIn-MnxwHQgVK6dqBrKJl4eSK2cf6x41juZt7FiYdysLRgja0ay9Srfz5zSpEGxzE58J693GGLjrfojltk9uLE3vpA-_-D7vLz9UnxB3VgpY0</recordid><startdate>201702</startdate><enddate>201702</enddate><creator>Safronova, P. A.</creator><creator>Laberg, J. S.</creator><creator>Andreassen, K.</creator><creator>Shlykova, V.</creator><creator>Vorren, T. O.</creator><creator>Chernikov, S.</creator><general>Wiley Subscription Services, Inc</general><general>Wiley</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>3HK</scope></search><sort><creationdate>201702</creationdate><title>Late Pliocene–early Pleistocene deep‐sea basin sedimentation at high‐latitudes: mega‐scale submarine slides of the north‐western Barents Sea margin prior to the shelf‐edge glaciations</title><author>Safronova, P. A. ; Laberg, J. S. ; Andreassen, K. ; Shlykova, V. ; Vorren, T. O. ; Chernikov, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a3791-326af6075a50d28aa510b83374e010556b4d79a314434ad43a53139126f4ce753</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Geofag: 450</topic><topic>Geosciences: 450</topic><topic>Matematikk og Naturvitenskap: 400</topic><topic>Mathematics and natural science: 400</topic><topic>Sedimentologi: 456</topic><topic>Sedimentology: 456</topic><topic>VDP</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Safronova, P. A.</creatorcontrib><creatorcontrib>Laberg, J. S.</creatorcontrib><creatorcontrib>Andreassen, K.</creatorcontrib><creatorcontrib>Shlykova, V.</creatorcontrib><creatorcontrib>Vorren, T. O.</creatorcontrib><creatorcontrib>Chernikov, S.</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>NORA - Norwegian Open Research Archives</collection><jtitle>Basin research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Safronova, P. A.</au><au>Laberg, J. S.</au><au>Andreassen, K.</au><au>Shlykova, V.</au><au>Vorren, T. O.</au><au>Chernikov, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Late Pliocene–early Pleistocene deep‐sea basin sedimentation at high‐latitudes: mega‐scale submarine slides of the north‐western Barents Sea margin prior to the shelf‐edge glaciations</atitle><jtitle>Basin research</jtitle><date>2017-02</date><risdate>2017</risdate><volume>29</volume><issue>S1</issue><spage>537</spage><epage>555</epage><pages>537-555</pages><issn>0950-091X</issn><issn>1365-2117</issn><eissn>1365-2117</eissn><abstract>At high‐latitude continental margins, large‐scale submarine sliding has been an important process for deep‐sea sediment transfer during glacial and interglacial periods. Little is, however, known about the importance of this process prior to the arrival of the ice sheet on the continental shelf. Based on new two‐dimensional seismic data from the NW Barents Sea continental margin, this study documents the presence of thick and regionally extensive submarine slides formed between 2.7 and 2.1 Ma, before shelf‐edge glaciation. The largest submarine slide, located in the northern part of the Storfjorden Trough Mouth Fan (TMF), left a scar and is characterized by an at least 870‐m‐thick interval of chaotic to reflection‐free seismic facies interpreted as debrites. The full extent of this slide debrite 1 is yet unknown but it has a mapped areal distribution of at least 10.7 × 103 km2 and it involved >4.1 × 103 km3 of sediments. It remobilized a larger sediment volume than one of the largest exposed submarine slides in the world – the Storegga Slide in the Norwegian Sea. In the southern part of the Storfjorden TMF and along the Kveithola TMF, the seismic data reveal at least four large‐scale slide debrites, characterized by seismic facies similar to the slide debrite 1. Each of them is ca. 295‐m thick, covers an area of at least 7.04 × 103 km2 and involved 1.1 × 103 km3 of sediments. These five submarine slide debrites represent approximately one quarter of the total volume of sediments deposited during the time 2.7–1.5 Ma along the NW Barents Sea. The preconditioning factors for submarine sliding in this area probably included deposition at high sedimentation rate, some of which may have occurred in periods of low eustatic sea‐level. Intervals of weak contouritic sediments might also have contributed to the instability of part of the slope succession as these deposits are known from other parts of the Norwegian margin and elsewhere to have the potential to act as weak layers. Triggering was probably caused by seismicity associated with the nearby and active Knipovich spreading ridge and/or the old tectonic lineaments within the Spitsbergen Shear Zone. This seismicity is inferred to be the main influence of the large‐scale sliding in this area as this and previous studies have documented that sliding have occurred independently of climatic variations, i.e. both before and during the period of ice sheets repeatedly covering the continental shelf.</abstract><cop>Oxford</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/bre.12161</doi><tpages>19</tpages><oa>free_for_read</oa></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0950-091X |
ispartof | Basin research, 2017-02, Vol.29 (S1), p.537-555 |
issn | 0950-091X 1365-2117 1365-2117 |
language | eng |
recordid | cdi_cristin_nora_10037_13712 |
source | Wiley-Blackwell Journals; NORA - Norwegian Open Research Archives |
subjects | Geofag: 450 Geosciences: 450 Matematikk og Naturvitenskap: 400 Mathematics and natural science: 400 Sedimentologi: 456 Sedimentology: 456 VDP |
title | Late Pliocene–early Pleistocene deep‐sea basin sedimentation at high‐latitudes: mega‐scale submarine slides of the north‐western Barents Sea margin prior to the shelf‐edge glaciations |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T05%3A49%3A00IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_crist&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Late%20Pliocene%E2%80%93early%20Pleistocene%20deep%E2%80%90sea%20basin%20sedimentation%20at%20high%E2%80%90latitudes:%20mega%E2%80%90scale%20submarine%20slides%20of%20the%20north%E2%80%90western%20Barents%20Sea%20margin%20prior%20to%20the%20shelf%E2%80%90edge%20glaciations&rft.jtitle=Basin%20research&rft.au=Safronova,%20P.%20A.&rft.date=2017-02&rft.volume=29&rft.issue=S1&rft.spage=537&rft.epage=555&rft.pages=537-555&rft.issn=0950-091X&rft.eissn=1365-2117&rft_id=info:doi/10.1111/bre.12161&rft_dat=%3Cproquest_crist%3E4307807941%3C/proquest_crist%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1861656496&rft_id=info:pmid/&rfr_iscdi=true |