Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time
Abstract The offshore rifted margins of the North Atlantic have a spatially complex crustal structure comprised of variable crustal morphologies, continental blocks, and inherited structures. Recently, deformable plate tectonic models have permitted the interplay of plate kinematics and deformation...
Published in: | Geochemistry, Geophysics, Geosystems |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2022
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2022GC010373 https://doaj.org/article/80613f6cba25439aba9a1b8d8cd2e06c |
id |
ftdoajarticles:oai:doaj.org/article:80613f6cba25439aba9a1b8d8cd2e06c |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:80613f6cba25439aba9a1b8d8cd2e06c 2023-12-03T10:26:11+01:00 Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time Michael T. King J. Kim Welford 2022-06-01T00:00:00Z https://doi.org/10.1029/2022GC010373 https://doaj.org/article/80613f6cba25439aba9a1b8d8cd2e06c EN eng Wiley https://doi.org/10.1029/2022GC010373 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2022GC010373 https://doaj.org/article/80613f6cba25439aba9a1b8d8cd2e06c Geochemistry, Geophysics, Geosystems, Vol 23, Iss 6, Pp n/a-n/a (2022) pyGPlates gravity inversion deformable plate models rifting Orphan Basin: Porcupine Basin Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.1029/2022GC010373 2023-11-05T01:36:02Z Abstract The offshore rifted margins of the North Atlantic have a spatially complex crustal structure comprised of variable crustal morphologies, continental blocks, and inherited structures. Recently, deformable plate tectonic models have permitted the interplay of plate kinematics and deformation to be assessed throughout the North Atlantic, and elsewhere. In particular, the ability to calculate temporal variations in crustal thickness has provided insight into the kinematic role of continental blocks and their interplay with large and micro‐tectonic plates during the formation of the North Atlantic offshore rifted margins. In this study, the deformable plate modeling workflow introduced in the companion contribution of this study (Part 1) is used to investigate previously published and newly presented deformable plate models of the Newfoundland, Irish, and West Iberian margins. This approach permits the deformation and subsequent crustal thickness evolution within previously recognized continental blocks and sedimentary basins throughout the southern North Atlantic Ocean to be visualized and assessed from 200 Ma to present day. The segmentation of early rift crustal thicknesses calculated by deformable plate models demonstrate strong correlations with the offshore extension of Appalachian and Caledonian terrane boundaries. Thus, our observations suggest that inherited orogenic boundaries potentially play a key role in the early rift crustal structure of sedimentary basins and the partitioning of deformation around and within continental blocks. Article in Journal/Newspaper Newfoundland North Atlantic Directory of Open Access Journals: DOAJ Articles Geochemistry, Geophysics, Geosystems 23 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
pyGPlates gravity inversion deformable plate models rifting Orphan Basin: Porcupine Basin Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
spellingShingle |
pyGPlates gravity inversion deformable plate models rifting Orphan Basin: Porcupine Basin Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 Michael T. King J. Kim Welford Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time |
topic_facet |
pyGPlates gravity inversion deformable plate models rifting Orphan Basin: Porcupine Basin Geophysics. Cosmic physics QC801-809 Geology QE1-996.5 |
description |
Abstract The offshore rifted margins of the North Atlantic have a spatially complex crustal structure comprised of variable crustal morphologies, continental blocks, and inherited structures. Recently, deformable plate tectonic models have permitted the interplay of plate kinematics and deformation to be assessed throughout the North Atlantic, and elsewhere. In particular, the ability to calculate temporal variations in crustal thickness has provided insight into the kinematic role of continental blocks and their interplay with large and micro‐tectonic plates during the formation of the North Atlantic offshore rifted margins. In this study, the deformable plate modeling workflow introduced in the companion contribution of this study (Part 1) is used to investigate previously published and newly presented deformable plate models of the Newfoundland, Irish, and West Iberian margins. This approach permits the deformation and subsequent crustal thickness evolution within previously recognized continental blocks and sedimentary basins throughout the southern North Atlantic Ocean to be visualized and assessed from 200 Ma to present day. The segmentation of early rift crustal thicknesses calculated by deformable plate models demonstrate strong correlations with the offshore extension of Appalachian and Caledonian terrane boundaries. Thus, our observations suggest that inherited orogenic boundaries potentially play a key role in the early rift crustal structure of sedimentary basins and the partitioning of deformation around and within continental blocks. |
format |
Article in Journal/Newspaper |
author |
Michael T. King J. Kim Welford |
author_facet |
Michael T. King J. Kim Welford |
author_sort |
Michael T. King |
title |
Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time |
title_short |
Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time |
title_full |
Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time |
title_fullStr |
Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time |
title_full_unstemmed |
Advances in Deformable Plate Tectonic Models: 2. Reconstructing the Southern North Atlantic Back Through Time |
title_sort |
advances in deformable plate tectonic models: 2. reconstructing the southern north atlantic back through time |
publisher |
Wiley |
publishDate |
2022 |
url |
https://doi.org/10.1029/2022GC010373 https://doaj.org/article/80613f6cba25439aba9a1b8d8cd2e06c |
genre |
Newfoundland North Atlantic |
genre_facet |
Newfoundland North Atlantic |
op_source |
Geochemistry, Geophysics, Geosystems, Vol 23, Iss 6, Pp n/a-n/a (2022) |
op_relation |
https://doi.org/10.1029/2022GC010373 https://doaj.org/toc/1525-2027 1525-2027 doi:10.1029/2022GC010373 https://doaj.org/article/80613f6cba25439aba9a1b8d8cd2e06c |
op_doi |
https://doi.org/10.1029/2022GC010373 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
23 |
container_issue |
6 |
_version_ |
1784275380676329472 |