Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard
Cooling fracture orientations in diabase sills associated with the Cretaceous High Arctic Large Igneous Province and syn-sedimentary Triassic faults help constrain a model for Svalbard's (NE Barents Shelf) Mesozoic stress field evolution. Fracture data from Edgeøya and adjacent islands in SE Sv...
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://research.vu.nl/en/publications/799aec41-9104-4370-9403-04399e5b1910 https://doi.org/10.1029/2018TC005461 https://hdl.handle.net/1871.1/799aec41-9104-4370-9403-04399e5b1910 http://www.scopus.com/inward/record.url?scp=85091217818&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85091217818&partnerID=8YFLogxK |
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ftvuamstcris:oai:research.vu.nl:publications/799aec41-9104-4370-9403-04399e5b1910 2024-09-15T18:04:25+00:00 Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard Maher, Harmon Senger, Kim Braathen, Alvar Mulrooney, Mark Joseph Smyrak-Sikora, Aleksandra Osmundsen, Per Terje Ogata, Kei 2020-04 https://research.vu.nl/en/publications/799aec41-9104-4370-9403-04399e5b1910 https://doi.org/10.1029/2018TC005461 https://hdl.handle.net/1871.1/799aec41-9104-4370-9403-04399e5b1910 http://www.scopus.com/inward/record.url?scp=85091217818&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85091217818&partnerID=8YFLogxK eng eng https://research.vu.nl/en/publications/799aec41-9104-4370-9403-04399e5b1910 info:eu-repo/semantics/restrictedAccess Maher , H , Senger , K , Braathen , A , Mulrooney , M J , Smyrak-Sikora , A , Osmundsen , P T & Ogata , K 2020 , ' Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard ' , Tectonics , vol. 39 , no. 4 , e2018TC005461 . https://doi.org/10.1029/2018TC005461 Edgeøya HALIP Mesozoic regional joints stress field Svalbard /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2020 ftvuamstcris https://doi.org/10.1029/2018TC005461 2024-07-10T23:48:04Z Cooling fracture orientations in diabase sills associated with the Cretaceous High Arctic Large Igneous Province and syn-sedimentary Triassic faults help constrain a model for Svalbard's (NE Barents Shelf) Mesozoic stress field evolution. Fracture data from Edgeøya and adjacent islands in SE Svalbard, from S Spitsbergen, and from literature were used to model preferred orientations and temporal relationships. Orthogonal, roughly E-W and N-S, joints and veins in sills from SE Svalbard are interpreted as cooling fractures influenced by the ambient stress field. Aligned preferred orientations within the Triassic host strata are associated with a regional Cretaceous jointing episode driven by sill emplacement and/or erosional unloading. The regional maximum horizontal stress (likely σ1) is inferred to have been parallel to a dominant ≈E-W set. Spitsbergen's more complex joint patterns are associated with proximity to the Cenozoic West Spitsbergen Fold-and-Thrust Belt, but ≈E-W and ≈N-S orientations occur and are typically the earlier set. Syn-sedimentary, ≈NW-SE striking, Triassic normal faults in SE Svalbard aligned with the maximum horizontal stress indicate a Triassic to Cretaceous counterclockwise stress field shift, with additional counterclockwise shifting during Cenozoic dextral transpression between Svalbard and Greenland. Localized joint preferred orientations consistent with both decoupled and coupled transpression occur. Changes in the regional maximum horizontal stress and deformation regime may reflect timing of which plate margin was crucial in influencing Svalbard's plate interior stress field, starting with Triassic Uralian activity to the E, then Cretaceous Amerasian Basin development to the NW, culminating with Cenozoic dextral transpression and transtension to the SW. Article in Journal/Newspaper Edgeøya Greenland Svalbard Spitsbergen Vrije Universiteit Amsterdam (VU): Research Portal Tectonics 39 4 |
institution |
Open Polar |
collection |
Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
Edgeøya HALIP Mesozoic regional joints stress field Svalbard /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
Edgeøya HALIP Mesozoic regional joints stress field Svalbard /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Maher, Harmon Senger, Kim Braathen, Alvar Mulrooney, Mark Joseph Smyrak-Sikora, Aleksandra Osmundsen, Per Terje Ogata, Kei Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard |
topic_facet |
Edgeøya HALIP Mesozoic regional joints stress field Svalbard /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Cooling fracture orientations in diabase sills associated with the Cretaceous High Arctic Large Igneous Province and syn-sedimentary Triassic faults help constrain a model for Svalbard's (NE Barents Shelf) Mesozoic stress field evolution. Fracture data from Edgeøya and adjacent islands in SE Svalbard, from S Spitsbergen, and from literature were used to model preferred orientations and temporal relationships. Orthogonal, roughly E-W and N-S, joints and veins in sills from SE Svalbard are interpreted as cooling fractures influenced by the ambient stress field. Aligned preferred orientations within the Triassic host strata are associated with a regional Cretaceous jointing episode driven by sill emplacement and/or erosional unloading. The regional maximum horizontal stress (likely σ1) is inferred to have been parallel to a dominant ≈E-W set. Spitsbergen's more complex joint patterns are associated with proximity to the Cenozoic West Spitsbergen Fold-and-Thrust Belt, but ≈E-W and ≈N-S orientations occur and are typically the earlier set. Syn-sedimentary, ≈NW-SE striking, Triassic normal faults in SE Svalbard aligned with the maximum horizontal stress indicate a Triassic to Cretaceous counterclockwise stress field shift, with additional counterclockwise shifting during Cenozoic dextral transpression between Svalbard and Greenland. Localized joint preferred orientations consistent with both decoupled and coupled transpression occur. Changes in the regional maximum horizontal stress and deformation regime may reflect timing of which plate margin was crucial in influencing Svalbard's plate interior stress field, starting with Triassic Uralian activity to the E, then Cretaceous Amerasian Basin development to the NW, culminating with Cenozoic dextral transpression and transtension to the SW. |
format |
Article in Journal/Newspaper |
author |
Maher, Harmon Senger, Kim Braathen, Alvar Mulrooney, Mark Joseph Smyrak-Sikora, Aleksandra Osmundsen, Per Terje Ogata, Kei |
author_facet |
Maher, Harmon Senger, Kim Braathen, Alvar Mulrooney, Mark Joseph Smyrak-Sikora, Aleksandra Osmundsen, Per Terje Ogata, Kei |
author_sort |
Maher, Harmon |
title |
Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard |
title_short |
Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard |
title_full |
Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard |
title_fullStr |
Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard |
title_full_unstemmed |
Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard |
title_sort |
mesozoic-cenozoic regional stress field evolution in svalbard |
publishDate |
2020 |
url |
https://research.vu.nl/en/publications/799aec41-9104-4370-9403-04399e5b1910 https://doi.org/10.1029/2018TC005461 https://hdl.handle.net/1871.1/799aec41-9104-4370-9403-04399e5b1910 http://www.scopus.com/inward/record.url?scp=85091217818&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=85091217818&partnerID=8YFLogxK |
genre |
Edgeøya Greenland Svalbard Spitsbergen |
genre_facet |
Edgeøya Greenland Svalbard Spitsbergen |
op_source |
Maher , H , Senger , K , Braathen , A , Mulrooney , M J , Smyrak-Sikora , A , Osmundsen , P T & Ogata , K 2020 , ' Mesozoic-Cenozoic Regional Stress Field Evolution in Svalbard ' , Tectonics , vol. 39 , no. 4 , e2018TC005461 . https://doi.org/10.1029/2018TC005461 |
op_relation |
https://research.vu.nl/en/publications/799aec41-9104-4370-9403-04399e5b1910 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2018TC005461 |
container_title |
Tectonics |
container_volume |
39 |
container_issue |
4 |
_version_ |
1810441906850627584 |