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Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise

Significant changes in tectonic style and climate occurred from the late Archaean to early Proterozoic when continental growth and emergence provided opportunities for photosynthetic life to proliferate by the initiation of the Great Oxidation Event (GOE). In this study, we report a Neoarchaean pass...

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Autores principales: Peng, Yaying, Kusky, Timothy, Wang, Lu, Luan, Zhikang, Wang, Chuanhai, Liu, Xuanyu, Zhong, Yating, Evans, Noreen J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9763395/
https://www.ncbi.nlm.nih.gov/pubmed/36535961
http://dx.doi.org/10.1038/s41467-022-35559-w
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author Peng, Yaying
Kusky, Timothy
Wang, Lu
Luan, Zhikang
Wang, Chuanhai
Liu, Xuanyu
Zhong, Yating
Evans, Noreen J.
author_facet Peng, Yaying
Kusky, Timothy
Wang, Lu
Luan, Zhikang
Wang, Chuanhai
Liu, Xuanyu
Zhong, Yating
Evans, Noreen J.
author_sort Peng, Yaying
collection PubMed
description Significant changes in tectonic style and climate occurred from the late Archaean to early Proterozoic when continental growth and emergence provided opportunities for photosynthetic life to proliferate by the initiation of the Great Oxidation Event (GOE). In this study, we report a Neoarchaean passive-margin-type sequence (2560–2500 million years ago) from the Precambrian basement of China that formed in an accretionary orogen. Tectonostratigraphic and detrital zircon analysis reveal that thermal subsidence on the backside of a recently amalgamated oceanic archipelago created a quiet, shallow water environment, marked by deposition of carbonates, shales, and shallow water sediments, likely hosts to early photosynthetic microbes. Distinct from the traditional understanding of passive margins generated by continental rifting, post-collisional subsidence of archipelago margins represents a novel stable niche, signalling initial continental maturity and foreshadowing great changes at the Archaean-Proterozoic boundary.
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spelling pubmed-97633952022-12-21 Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise Peng, Yaying Kusky, Timothy Wang, Lu Luan, Zhikang Wang, Chuanhai Liu, Xuanyu Zhong, Yating Evans, Noreen J. Nat Commun Article Significant changes in tectonic style and climate occurred from the late Archaean to early Proterozoic when continental growth and emergence provided opportunities for photosynthetic life to proliferate by the initiation of the Great Oxidation Event (GOE). In this study, we report a Neoarchaean passive-margin-type sequence (2560–2500 million years ago) from the Precambrian basement of China that formed in an accretionary orogen. Tectonostratigraphic and detrital zircon analysis reveal that thermal subsidence on the backside of a recently amalgamated oceanic archipelago created a quiet, shallow water environment, marked by deposition of carbonates, shales, and shallow water sediments, likely hosts to early photosynthetic microbes. Distinct from the traditional understanding of passive margins generated by continental rifting, post-collisional subsidence of archipelago margins represents a novel stable niche, signalling initial continental maturity and foreshadowing great changes at the Archaean-Proterozoic boundary. Nature Publishing Group UK 2022-12-19 /pmc/articles/PMC9763395/ /pubmed/36535961 http://dx.doi.org/10.1038/s41467-022-35559-w Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Peng, Yaying
Kusky, Timothy
Wang, Lu
Luan, Zhikang
Wang, Chuanhai
Liu, Xuanyu
Zhong, Yating
Evans, Noreen J.
Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
title Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
title_full Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
title_fullStr Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
title_full_unstemmed Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
title_short Passive margins in accreting Archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
title_sort passive margins in accreting archaean archipelagos signal continental stability promoting early atmospheric oxygen rise
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9763395/
https://www.ncbi.nlm.nih.gov/pubmed/36535961
http://dx.doi.org/10.1038/s41467-022-35559-w
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