Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation
Abstract This paper challenges the conventional interpretation of a major, economically important Mesoproterozoic intracratonic rift system as a group of aulacogens, proposing instead that they are rifts that developed in response to far‐field stress caused by continent–continent collision (impactog...
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crwiley:10.1111/ter.12207 2024-06-23T07:49:56+00:00 Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation Turner, Elizabeth C. Long, Darrel G. F. Rainbird, Robert H. Petrus, Joseph A. Rayner, Nicole M. Natural Sciences and Engineering Research Council of Canada 2016 http://dx.doi.org/10.1111/ter.12207 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fter.12207 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ter.12207 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Terra Nova volume 28, issue 3, page 188-194 ISSN 0954-4879 1365-3121 journal-article 2016 crwiley https://doi.org/10.1111/ter.12207 2024-06-04T06:48:27Z Abstract This paper challenges the conventional interpretation of a major, economically important Mesoproterozoic intracratonic rift system as a group of aulacogens, proposing instead that they are rifts that developed in response to far‐field stress caused by continent–continent collision (impactogens) during supercontinent assembly. The tectonostratigraphic evolution of the Bylot basins (Arctic Canada) records dramatic alternations between extensional and compressional stress regimes, precluding an aulacogen interpretation and favouring an impactogen interpretation. New geochronological data (U–Th–Pb whole‐rock depositional age; detrital zircon signatures) provide a record of impactogens that developed in Laurentia's interior as a result of Grenvillian (~1.1 Ga) far‐field stress during assembly of the supercontinent Rodinia. Formation of the world‐class Nanisivik zinc deposit in one of the rifts is temporally associated with the Grenvillian orogeny, and consequently represents both (i) a rare exception to the global pattern of few ore deposits forming during supercontinent episodes, and (ii) a hitherto unrecognised tectonic setting for carbonate‐hosted zinc deposits. Article in Journal/Newspaper Arctic Nanisivik Wiley Online Library Arctic Canada Nanisivik ENVELOPE(-84.535,-84.535,73.037,73.037) Terra Nova 28 3 188 194 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract This paper challenges the conventional interpretation of a major, economically important Mesoproterozoic intracratonic rift system as a group of aulacogens, proposing instead that they are rifts that developed in response to far‐field stress caused by continent–continent collision (impactogens) during supercontinent assembly. The tectonostratigraphic evolution of the Bylot basins (Arctic Canada) records dramatic alternations between extensional and compressional stress regimes, precluding an aulacogen interpretation and favouring an impactogen interpretation. New geochronological data (U–Th–Pb whole‐rock depositional age; detrital zircon signatures) provide a record of impactogens that developed in Laurentia's interior as a result of Grenvillian (~1.1 Ga) far‐field stress during assembly of the supercontinent Rodinia. Formation of the world‐class Nanisivik zinc deposit in one of the rifts is temporally associated with the Grenvillian orogeny, and consequently represents both (i) a rare exception to the global pattern of few ore deposits forming during supercontinent episodes, and (ii) a hitherto unrecognised tectonic setting for carbonate‐hosted zinc deposits. |
author2 |
Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Turner, Elizabeth C. Long, Darrel G. F. Rainbird, Robert H. Petrus, Joseph A. Rayner, Nicole M. |
spellingShingle |
Turner, Elizabeth C. Long, Darrel G. F. Rainbird, Robert H. Petrus, Joseph A. Rayner, Nicole M. Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
author_facet |
Turner, Elizabeth C. Long, Darrel G. F. Rainbird, Robert H. Petrus, Joseph A. Rayner, Nicole M. |
author_sort |
Turner, Elizabeth C. |
title |
Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
title_short |
Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
title_full |
Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
title_fullStr |
Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
title_full_unstemmed |
Late Mesoproterozoic rifting in Arctic Canada during Rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
title_sort |
late mesoproterozoic rifting in arctic canada during rodinia assembly: impactogens, trans‐continental far‐field stress and zinc mineralisation |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/ter.12207 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fter.12207 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ter.12207 |
long_lat |
ENVELOPE(-84.535,-84.535,73.037,73.037) |
geographic |
Arctic Canada Nanisivik |
geographic_facet |
Arctic Canada Nanisivik |
genre |
Arctic Nanisivik |
genre_facet |
Arctic Nanisivik |
op_source |
Terra Nova volume 28, issue 3, page 188-194 ISSN 0954-4879 1365-3121 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ter.12207 |
container_title |
Terra Nova |
container_volume |
28 |
container_issue |
3 |
container_start_page |
188 |
op_container_end_page |
194 |
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1802640671371165696 |