Crustal thickness, rift‐drift and potential links to key global events
Abstract Orogenic crustal thickening leads to increased continental elevation and runoff into the oceans, but there are fundamental uncertainties in the temporal patterns of thickening through Earth history. U‐Pb age and trace element data in detrital zircons from Antarctica are consistent with rece...
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crwiley:10.1111/ter.12485 2024-06-23T07:46:10+00:00 Crustal thickness, rift‐drift and potential links to key global events Paulsen, Timothy Deering, Chad Sliwinski, Jakub Chatterjee, Snehamoy Bachmann, Olivier Guillong, Marcel 2020 http://dx.doi.org/10.1111/ter.12485 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fter.12485 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ter.12485 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ter.12485 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Terra Nova volume 33, issue 1, page 12-20 ISSN 0954-4879 1365-3121 journal-article 2020 crwiley https://doi.org/10.1111/ter.12485 2024-06-11T04:48:14Z Abstract Orogenic crustal thickening leads to increased continental elevation and runoff into the oceans, but there are fundamental uncertainties in the temporal patterns of thickening through Earth history. U‐Pb age and trace element data in detrital zircons from Antarctica are consistent with recent global analyses suggesting two dominant peaks in average crustal thickness from ~2.6 to 2.0 Ga and ~0.8 to 0.5 Ga. Shifts in marine carbonate 87 Sr/ 86 Sr ratios show two primary peaks that post‐date these crustal thickness peaks, suggesting significant weathering and erosion of global continental relief. Both episodes correlate well with zircon trace element and isotope proxies indicating enhanced crustal and fluid input into subduction zone magmas. Increased crustal thickness correlates with increased passive margin abundance and overlaps with snowball Earth glaciations and atmospheric oxygenation, suggesting a causal link between continental rift‐drift phases and major transitions in Earth's atmospheric and oceanic evolution. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Terra Nova 33 1 12 20 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Orogenic crustal thickening leads to increased continental elevation and runoff into the oceans, but there are fundamental uncertainties in the temporal patterns of thickening through Earth history. U‐Pb age and trace element data in detrital zircons from Antarctica are consistent with recent global analyses suggesting two dominant peaks in average crustal thickness from ~2.6 to 2.0 Ga and ~0.8 to 0.5 Ga. Shifts in marine carbonate 87 Sr/ 86 Sr ratios show two primary peaks that post‐date these crustal thickness peaks, suggesting significant weathering and erosion of global continental relief. Both episodes correlate well with zircon trace element and isotope proxies indicating enhanced crustal and fluid input into subduction zone magmas. Increased crustal thickness correlates with increased passive margin abundance and overlaps with snowball Earth glaciations and atmospheric oxygenation, suggesting a causal link between continental rift‐drift phases and major transitions in Earth's atmospheric and oceanic evolution. |
format |
Article in Journal/Newspaper |
author |
Paulsen, Timothy Deering, Chad Sliwinski, Jakub Chatterjee, Snehamoy Bachmann, Olivier Guillong, Marcel |
spellingShingle |
Paulsen, Timothy Deering, Chad Sliwinski, Jakub Chatterjee, Snehamoy Bachmann, Olivier Guillong, Marcel Crustal thickness, rift‐drift and potential links to key global events |
author_facet |
Paulsen, Timothy Deering, Chad Sliwinski, Jakub Chatterjee, Snehamoy Bachmann, Olivier Guillong, Marcel |
author_sort |
Paulsen, Timothy |
title |
Crustal thickness, rift‐drift and potential links to key global events |
title_short |
Crustal thickness, rift‐drift and potential links to key global events |
title_full |
Crustal thickness, rift‐drift and potential links to key global events |
title_fullStr |
Crustal thickness, rift‐drift and potential links to key global events |
title_full_unstemmed |
Crustal thickness, rift‐drift and potential links to key global events |
title_sort |
crustal thickness, rift‐drift and potential links to key global events |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/ter.12485 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fter.12485 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ter.12485 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ter.12485 |
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Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Terra Nova volume 33, issue 1, page 12-20 ISSN 0954-4879 1365-3121 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/ter.12485 |
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Terra Nova |
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33 |
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1 |
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12 |
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20 |
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1802644346976075776 |