Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard
Abstract New geological mapping has revealed further details of the tectonic and stratigraphic effects of Devonian and later reactivations of the Billefjorden Fault Zone, one of a number of important north—south trending lineaments in Svalbard. Analysis of offsets along the many steeply-dipping faul...
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Language: | English |
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Cambridge University Press (CUP)
1996
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Online Access: | http://dx.doi.org/10.1017/s0016756800007251 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800007251 |
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crcambridgeupr:10.1017/s0016756800007251 2024-09-09T19:26:05+00:00 Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard McCann, Andrew J. Dallmann, Winfried K. 1996 http://dx.doi.org/10.1017/s0016756800007251 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800007251 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Geological Magazine volume 133, issue 1, page 63-84 ISSN 0016-7568 1469-5081 journal-article 1996 crcambridgeupr https://doi.org/10.1017/s0016756800007251 2024-08-28T04:02:26Z Abstract New geological mapping has revealed further details of the tectonic and stratigraphic effects of Devonian and later reactivations of the Billefjorden Fault Zone, one of a number of important north—south trending lineaments in Svalbard. Analysis of offsets along the many steeply-dipping faults within the zone, and effects on the subsidence and deformation of the adjacent crustal blocks, is presented as a series of tectonic maps from the Late Devonian through to the Tertiary. Late Devonian sinistral transpression, suggested previously, cannot be ruled out, and Carboniferous reactivation was dominated by extension, with possibly a slight dextral strike-slip component. After Late Carboniferous to Early Cretaceous platform subsidence, during which the fault zone had little effect on sedimentation, development of the Tertiary West Spitsbergen Fold Belt (related to the opening of the Arctic Ocean) involved compressive (and transpressive?) reactivation of basement-seated structures further east, including the Billefjorden Fault Zone. In the Billefjorden—Austfjorden area this produced a large monoclinal fold across the fault zone, which was later cross-cut by extensional structures to produce the present day Billefjorden syncline. This localized late extension is related to a slight variation in the trend of the Billefjorden Fault Zone through this area. Article in Journal/Newspaper Arctic Arctic Ocean Austfjord* Billefjorden Svalbard Spitsbergen Cambridge University Press Arctic Arctic Ocean Austfjorden ENVELOPE(16.234,16.234,79.010,79.010) Billefjorden ENVELOPE(16.417,16.417,78.563,78.563) Svalbard Geological Magazine 133 1 63 84 |
institution |
Open Polar |
collection |
Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract New geological mapping has revealed further details of the tectonic and stratigraphic effects of Devonian and later reactivations of the Billefjorden Fault Zone, one of a number of important north—south trending lineaments in Svalbard. Analysis of offsets along the many steeply-dipping faults within the zone, and effects on the subsidence and deformation of the adjacent crustal blocks, is presented as a series of tectonic maps from the Late Devonian through to the Tertiary. Late Devonian sinistral transpression, suggested previously, cannot be ruled out, and Carboniferous reactivation was dominated by extension, with possibly a slight dextral strike-slip component. After Late Carboniferous to Early Cretaceous platform subsidence, during which the fault zone had little effect on sedimentation, development of the Tertiary West Spitsbergen Fold Belt (related to the opening of the Arctic Ocean) involved compressive (and transpressive?) reactivation of basement-seated structures further east, including the Billefjorden Fault Zone. In the Billefjorden—Austfjorden area this produced a large monoclinal fold across the fault zone, which was later cross-cut by extensional structures to produce the present day Billefjorden syncline. This localized late extension is related to a slight variation in the trend of the Billefjorden Fault Zone through this area. |
format |
Article in Journal/Newspaper |
author |
McCann, Andrew J. Dallmann, Winfried K. |
spellingShingle |
McCann, Andrew J. Dallmann, Winfried K. Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard |
author_facet |
McCann, Andrew J. Dallmann, Winfried K. |
author_sort |
McCann, Andrew J. |
title |
Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard |
title_short |
Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard |
title_full |
Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard |
title_fullStr |
Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard |
title_full_unstemmed |
Reactivation history of the long-lived Billefjorden Fault Zone in north central Spitsbergen, Svalbard |
title_sort |
reactivation history of the long-lived billefjorden fault zone in north central spitsbergen, svalbard |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1017/s0016756800007251 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800007251 |
long_lat |
ENVELOPE(16.234,16.234,79.010,79.010) ENVELOPE(16.417,16.417,78.563,78.563) |
geographic |
Arctic Arctic Ocean Austfjorden Billefjorden Svalbard |
geographic_facet |
Arctic Arctic Ocean Austfjorden Billefjorden Svalbard |
genre |
Arctic Arctic Ocean Austfjord* Billefjorden Svalbard Spitsbergen |
genre_facet |
Arctic Arctic Ocean Austfjord* Billefjorden Svalbard Spitsbergen |
op_source |
Geological Magazine volume 133, issue 1, page 63-84 ISSN 0016-7568 1469-5081 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0016756800007251 |
container_title |
Geological Magazine |
container_volume |
133 |
container_issue |
1 |
container_start_page |
63 |
op_container_end_page |
84 |
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1809895765651226624 |