Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees

Understanding the geodynamic and Earth surface processes at the origin of post-collisional surface uplift in mountain ranges requires reconstruction of paleo-elevation. Here, we focus on the topographic evolution of the Cerdanya Basin in the eastern Pyrenees formed by post-orogenic extension during...

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Autores principales: Huyghe, Damien, Mouthereau, Frédéric, Ségalen, Loïc, Furió, Marc
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010729/
https://www.ncbi.nlm.nih.gov/pubmed/32041988
http://dx.doi.org/10.1038/s41598-020-58903-w
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author Huyghe, Damien
Mouthereau, Frédéric
Ségalen, Loïc
Furió, Marc
author_facet Huyghe, Damien
Mouthereau, Frédéric
Ségalen, Loïc
Furió, Marc
author_sort Huyghe, Damien
collection PubMed
description Understanding the geodynamic and Earth surface processes at the origin of post-collisional surface uplift in mountain ranges requires reconstruction of paleo-elevation. Here, we focus on the topographic evolution of the Cerdanya Basin in the eastern Pyrenees formed by post-orogenic extension during the Late Miocene. Stable isotope (δ(18)O) analyses of small rodent teeth and biogenic carbonates show the basin uplifted by 500 m since 6.5 Ma. These new paleoaltitudes constraints when combined with the regional geology and geophysical data reveal the anomalously high topography of the region is the result of density changes in the sublithospheric mantle associated with crustal thinning and then opening of Gulf of Lion during the Chattian-early Burdigalian.
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spelling pubmed-70107292020-02-21 Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees Huyghe, Damien Mouthereau, Frédéric Ségalen, Loïc Furió, Marc Sci Rep Article Understanding the geodynamic and Earth surface processes at the origin of post-collisional surface uplift in mountain ranges requires reconstruction of paleo-elevation. Here, we focus on the topographic evolution of the Cerdanya Basin in the eastern Pyrenees formed by post-orogenic extension during the Late Miocene. Stable isotope (δ(18)O) analyses of small rodent teeth and biogenic carbonates show the basin uplifted by 500 m since 6.5 Ma. These new paleoaltitudes constraints when combined with the regional geology and geophysical data reveal the anomalously high topography of the region is the result of density changes in the sublithospheric mantle associated with crustal thinning and then opening of Gulf of Lion during the Chattian-early Burdigalian. Nature Publishing Group UK 2020-02-10 /pmc/articles/PMC7010729/ /pubmed/32041988 http://dx.doi.org/10.1038/s41598-020-58903-w Text en © The Author(s) 2020 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/.
spellingShingle Article
Huyghe, Damien
Mouthereau, Frédéric
Ségalen, Loïc
Furió, Marc
Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees
title Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees
title_full Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees
title_fullStr Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees
title_full_unstemmed Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees
title_short Long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)O) paleo-altimetry in eastern Pyrenees
title_sort long-term dynamic topographic support during post-orogenic crustal thinning revealed by stable isotope (δ(18)o) paleo-altimetry in eastern pyrenees
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7010729/
https://www.ncbi.nlm.nih.gov/pubmed/32041988
http://dx.doi.org/10.1038/s41598-020-58903-w
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