A reconstruction of the Eurekan Orogeny incorporating deformation constraints
Click on the DOI link to access the article (may not be free). The Eurekan Orogeny records Paleogene convergence between Greenland and the Canadian Arctic. The complexity of the region, well represented by the disputed magnitude of Cenozoic sinistral displacement of Greenland relative to Ellesmere I...
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American Geophysical Union
2017
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Online Access: | http://hdl.handle.net/10057/13012 https://doi.org/10.1002/2015TC004094 |
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ftwichitau:oai:https://soar.wichita.edu:10057/13012 2024-06-09T07:44:02+00:00 A reconstruction of the Eurekan Orogeny incorporating deformation constraints Gion, Austin M. Williams, Simon E. Mueller, R. Dietmar 2017-02 http://hdl.handle.net/10057/13012 https://doi.org/10.1002/2015TC004094 en_US eng American Geophysical Union Tectonics;v.36:no.2 Gion, Austin M.; Williams, Simon E.; Mueller, R. Dietmar. 2017. A reconstruction of the Eurekan Orogeny incorporating deformation constraints. Tectonics, vol. 36:no. 2:pp 304–320 0278-7407 WOS:000396822600008 http://dx.doi.org/10.1002/2015TC004094 http://hdl.handle.net/10057/13012 © 2017 American Geophysical Union Spitsbergen fold belt Zone North Greenland Axel-Heiberg Island Ellesmere-Island Arctic Canada Thrust belt Sest Spitsbergen Nares Strait Labrador sea Tectonic evolution Article 2017 ftwichitau https://doi.org/10.1002/2015TC004094 2024-05-10T03:27:33Z Click on the DOI link to access the article (may not be free). The Eurekan Orogeny records Paleogene convergence between Greenland and the Canadian Arctic. The complexity of the region, well represented by the disputed magnitude of Cenozoic sinistral displacement of Greenland relative to Ellesmere Island, stems from the simultaneous evolution of multiple tectonic regimes, as well as overprinting of later tectonic activity. Presented here is a plate model of regional crustal deformation constructed with the interactive GPlates software that enables an evaluation of previous reconstructions of the Eurekan Orogeny. This model is built upon a synthesis of published geological and geophysical data and their interpretations. It incorporates two phases of deformation from similar to 63 to 35 Ma. Phase 1, similar to 63 to similar to 55 Ma, involves similar to 85 km of Paleocene extension between Ellesmere and Devon Island, extension of similar to 20 km between Axel Heiberg and Ellesmere Island, and similar to 85 km of sinistral strike slip along the Nares Strait/Judge Daly Fault System, matching a range of 50-100 km indicated by the offset of marker beds, facies contacts, and platform margins between the conjugate Greenland and Ellesmere Island margins. Phase 2, similar to 55 to 35 Ma, results in total east-west compression of similar to 30 km and similar to 200 km of north-south compression across Ellesmere Island. This model confirms, for the first time, that key observations from subregions deformed by the Eurekan Orogeny are compatible on a broad scale. We have also identified potential problem areas in southwestern Ellesmere Island that are less compatible with a best fit model, given current constraints. This deforming plate model offers a platform and base model for future research. ARC ITRP project IH130200012. Article in Journal/Newspaper Arctic Axel Heiberg Island Devon Island Ellesmere Island Greenland Labrador Sea Nares strait North Greenland Spitsbergen Wichita State University: SOAR (Shocker Open Access Repository) Arctic Axel Heiberg Island ENVELOPE(-91.001,-91.001,79.752,79.752) Canada Daly ENVELOPE(63.761,63.761,-67.513,-67.513) Devon Island ENVELOPE(-88.000,-88.000,75.252,75.252) Ellesmere Island Greenland Heiberg ENVELOPE(13.964,13.964,66.424,66.424) Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Tectonics 36 2 304 320 |
institution |
Open Polar |
collection |
Wichita State University: SOAR (Shocker Open Access Repository) |
op_collection_id |
ftwichitau |
language |
English |
topic |
Spitsbergen fold belt Zone North Greenland Axel-Heiberg Island Ellesmere-Island Arctic Canada Thrust belt Sest Spitsbergen Nares Strait Labrador sea Tectonic evolution |
spellingShingle |
Spitsbergen fold belt Zone North Greenland Axel-Heiberg Island Ellesmere-Island Arctic Canada Thrust belt Sest Spitsbergen Nares Strait Labrador sea Tectonic evolution Gion, Austin M. Williams, Simon E. Mueller, R. Dietmar A reconstruction of the Eurekan Orogeny incorporating deformation constraints |
topic_facet |
Spitsbergen fold belt Zone North Greenland Axel-Heiberg Island Ellesmere-Island Arctic Canada Thrust belt Sest Spitsbergen Nares Strait Labrador sea Tectonic evolution |
description |
Click on the DOI link to access the article (may not be free). The Eurekan Orogeny records Paleogene convergence between Greenland and the Canadian Arctic. The complexity of the region, well represented by the disputed magnitude of Cenozoic sinistral displacement of Greenland relative to Ellesmere Island, stems from the simultaneous evolution of multiple tectonic regimes, as well as overprinting of later tectonic activity. Presented here is a plate model of regional crustal deformation constructed with the interactive GPlates software that enables an evaluation of previous reconstructions of the Eurekan Orogeny. This model is built upon a synthesis of published geological and geophysical data and their interpretations. It incorporates two phases of deformation from similar to 63 to 35 Ma. Phase 1, similar to 63 to similar to 55 Ma, involves similar to 85 km of Paleocene extension between Ellesmere and Devon Island, extension of similar to 20 km between Axel Heiberg and Ellesmere Island, and similar to 85 km of sinistral strike slip along the Nares Strait/Judge Daly Fault System, matching a range of 50-100 km indicated by the offset of marker beds, facies contacts, and platform margins between the conjugate Greenland and Ellesmere Island margins. Phase 2, similar to 55 to 35 Ma, results in total east-west compression of similar to 30 km and similar to 200 km of north-south compression across Ellesmere Island. This model confirms, for the first time, that key observations from subregions deformed by the Eurekan Orogeny are compatible on a broad scale. We have also identified potential problem areas in southwestern Ellesmere Island that are less compatible with a best fit model, given current constraints. This deforming plate model offers a platform and base model for future research. ARC ITRP project IH130200012. |
format |
Article in Journal/Newspaper |
author |
Gion, Austin M. Williams, Simon E. Mueller, R. Dietmar |
author_facet |
Gion, Austin M. Williams, Simon E. Mueller, R. Dietmar |
author_sort |
Gion, Austin M. |
title |
A reconstruction of the Eurekan Orogeny incorporating deformation constraints |
title_short |
A reconstruction of the Eurekan Orogeny incorporating deformation constraints |
title_full |
A reconstruction of the Eurekan Orogeny incorporating deformation constraints |
title_fullStr |
A reconstruction of the Eurekan Orogeny incorporating deformation constraints |
title_full_unstemmed |
A reconstruction of the Eurekan Orogeny incorporating deformation constraints |
title_sort |
reconstruction of the eurekan orogeny incorporating deformation constraints |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
http://hdl.handle.net/10057/13012 https://doi.org/10.1002/2015TC004094 |
long_lat |
ENVELOPE(-91.001,-91.001,79.752,79.752) ENVELOPE(63.761,63.761,-67.513,-67.513) ENVELOPE(-88.000,-88.000,75.252,75.252) ENVELOPE(13.964,13.964,66.424,66.424) ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Arctic Axel Heiberg Island Canada Daly Devon Island Ellesmere Island Greenland Heiberg Nares |
geographic_facet |
Arctic Axel Heiberg Island Canada Daly Devon Island Ellesmere Island Greenland Heiberg Nares |
genre |
Arctic Axel Heiberg Island Devon Island Ellesmere Island Greenland Labrador Sea Nares strait North Greenland Spitsbergen |
genre_facet |
Arctic Axel Heiberg Island Devon Island Ellesmere Island Greenland Labrador Sea Nares strait North Greenland Spitsbergen |
op_relation |
Tectonics;v.36:no.2 Gion, Austin M.; Williams, Simon E.; Mueller, R. Dietmar. 2017. A reconstruction of the Eurekan Orogeny incorporating deformation constraints. Tectonics, vol. 36:no. 2:pp 304–320 0278-7407 WOS:000396822600008 http://dx.doi.org/10.1002/2015TC004094 http://hdl.handle.net/10057/13012 |
op_rights |
© 2017 American Geophysical Union |
op_doi |
https://doi.org/10.1002/2015TC004094 |
container_title |
Tectonics |
container_volume |
36 |
container_issue |
2 |
container_start_page |
304 |
op_container_end_page |
320 |
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1801372839296630784 |