Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway
The ENE–WSW-trending Møre–Trøndelag Fault Complex (MTFC) in Central Norway is a 10–50 km-wide, steeply dipping reactivated fault zone. Onshore, it transects Devonian sedimentary rocks and a series of east to SE transported metamorphic nappes, which were emplaced during the Scandian (Silurian–Devonia...
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:38420 2023-06-11T04:14:46+02:00 Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway Watts, Lee M. Holdsworth, Robert E. Roberts, David Sleight, Janine M. Walker, Richard J. 2023 application/pdf http://dro.dur.ac.uk/38420/ http://dro.dur.ac.uk/38420/1/38420.pdf https://doi.org/10.1144/jgs2022-139 unknown Geological Society of London dro:38420 issn:0016-7649 (print) issn: 2041-479X (electronic) doi:10.1144/jgs2022-139 http://dro.dur.ac.uk/38420/ https://doi.org/10.1144/jgs2022-139 http://dro.dur.ac.uk/38420/1/38420.pdf This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/) Journal of the Geological Society, 2023, Vol.180(3) [Peer Reviewed Journal] Article PeerReviewed 2023 ftunivdurham https://doi.org/10.1144/jgs2022-139 2023-05-04T22:26:45Z The ENE–WSW-trending Møre–Trøndelag Fault Complex (MTFC) in Central Norway is a 10–50 km-wide, steeply dipping reactivated fault zone. Onshore, it transects Devonian sedimentary rocks and a series of east to SE transported metamorphic nappes, which were emplaced during the Scandian (Silurian–Devonian) Orogeny. Offshore, the MTFC defines the southern margin of the Møre Basin and the northern margin of the Viking Graben, meaning that the fault complex played a major role in controlling the architecture of these Mesozoic basins. Onshore, the MTFC has had a prolonged and heterogeneous kinematic history. The complex comprises two major fault strands: the Hitra–Snåsa Fault (HSF) and the Verran Fault (VF). These two faults seem to have broadly initiated as part of a single system of sinistral ductile shear zones during the early Devonian (c. 410 Ma). Sinistral transtensional reactivation (Permo-Carboniferous; 290 Ma) of the ENE–WSW-trending HSF and VF led to the development of cataclasites and pseudotachylites together with the formation of north–south-trending faults establishing the present-day brittle fault geometry of the MTFC. Later phases of Mesozoic reactivation focused along the Verran Fault Zone (VFZ) and north–south-linking structures were probably related to mid- to late Jurassic to early Cretaceous rifting and late Cretaceous to early Cenozoic opening of the North Atlantic. Article in Journal/Newspaper North Atlantic Durham University: Durham Research Online Norway Hitra ENVELOPE(8.756,8.756,63.544,63.544) Journal of the Geological Society 180 3 |
institution |
Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
description |
The ENE–WSW-trending Møre–Trøndelag Fault Complex (MTFC) in Central Norway is a 10–50 km-wide, steeply dipping reactivated fault zone. Onshore, it transects Devonian sedimentary rocks and a series of east to SE transported metamorphic nappes, which were emplaced during the Scandian (Silurian–Devonian) Orogeny. Offshore, the MTFC defines the southern margin of the Møre Basin and the northern margin of the Viking Graben, meaning that the fault complex played a major role in controlling the architecture of these Mesozoic basins. Onshore, the MTFC has had a prolonged and heterogeneous kinematic history. The complex comprises two major fault strands: the Hitra–Snåsa Fault (HSF) and the Verran Fault (VF). These two faults seem to have broadly initiated as part of a single system of sinistral ductile shear zones during the early Devonian (c. 410 Ma). Sinistral transtensional reactivation (Permo-Carboniferous; 290 Ma) of the ENE–WSW-trending HSF and VF led to the development of cataclasites and pseudotachylites together with the formation of north–south-trending faults establishing the present-day brittle fault geometry of the MTFC. Later phases of Mesozoic reactivation focused along the Verran Fault Zone (VFZ) and north–south-linking structures were probably related to mid- to late Jurassic to early Cretaceous rifting and late Cretaceous to early Cenozoic opening of the North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Watts, Lee M. Holdsworth, Robert E. Roberts, David Sleight, Janine M. Walker, Richard J. |
spellingShingle |
Watts, Lee M. Holdsworth, Robert E. Roberts, David Sleight, Janine M. Walker, Richard J. Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway |
author_facet |
Watts, Lee M. Holdsworth, Robert E. Roberts, David Sleight, Janine M. Walker, Richard J. |
author_sort |
Watts, Lee M. |
title |
Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway |
title_short |
Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway |
title_full |
Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway |
title_fullStr |
Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway |
title_full_unstemmed |
Structural evolution of the reactivated Møre–Trøndelag Fault Complex, Fosen Peninsula, Norway |
title_sort |
structural evolution of the reactivated møre–trøndelag fault complex, fosen peninsula, norway |
publisher |
Geological Society of London |
publishDate |
2023 |
url |
http://dro.dur.ac.uk/38420/ http://dro.dur.ac.uk/38420/1/38420.pdf https://doi.org/10.1144/jgs2022-139 |
long_lat |
ENVELOPE(8.756,8.756,63.544,63.544) |
geographic |
Norway Hitra |
geographic_facet |
Norway Hitra |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of the Geological Society, 2023, Vol.180(3) [Peer Reviewed Journal] |
op_relation |
dro:38420 issn:0016-7649 (print) issn: 2041-479X (electronic) doi:10.1144/jgs2022-139 http://dro.dur.ac.uk/38420/ https://doi.org/10.1144/jgs2022-139 http://dro.dur.ac.uk/38420/1/38420.pdf |
op_rights |
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/) |
op_doi |
https://doi.org/10.1144/jgs2022-139 |
container_title |
Journal of the Geological Society |
container_volume |
180 |
container_issue |
3 |
_version_ |
1768371039963709440 |