Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes
In order to decipher the prevalent processes active at depth in orogenic systems, their time sequence and their rates have to be assessed. This is essentially done via absolute dating of accessory and rock-forming metamorphic minerals. The interpretation of dates, now produced in high quantities and...
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Académie des sciences
2024-04-01
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| Series: | Comptes Rendus. Géoscience |
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| Online Access: | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.234/ |
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| author | Labrousse, Loic Bonnet, Guillaume François, Camille Godet, Antoine Gyomlai, Thomas |
| author_facet | Labrousse, Loic Bonnet, Guillaume François, Camille Godet, Antoine Gyomlai, Thomas |
| author_sort | Labrousse, Loic |
| collection | DOAJ |
| description | In order to decipher the prevalent processes active at depth in orogenic systems, their time sequence and their rates have to be assessed. This is essentially done via absolute dating of accessory and rock-forming metamorphic minerals. The interpretation of dates, now produced in high quantities and low uncertainties, with geochemical and textural information thanks to in situ dating techniques, into ages with a geological meaning, is based on sophisticated multi-disciplinary approaches. The wealth of data produced during the last decades in internal zones of mountain chains today questions some of the seminal concepts in geodynamics as well as in petrochronology. The concept of closure temperature [Jäger, 1967] but also the notions of metamorphic unit or metamorphic event are now to be considered in the light of campaign-style dating projects, that enable a comprehensive and statistical interpretation of age patterns from the mineral scale to the geodynamic process scale. |
| format | Article |
| id | doaj-art-2998839eb1b74a6c84fd341ac9ce32b5 |
| institution | Kabale University |
| issn | 1778-7025 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Académie des sciences |
| record_format | Article |
| series | Comptes Rendus. Géoscience |
| spelling | doaj-art-2998839eb1b74a6c84fd341ac9ce32b52025-02-07T10:41:49ZengAcadémie des sciencesComptes Rendus. Géoscience1778-70252024-04-01356S255157710.5802/crgeos.23410.5802/crgeos.234Recent advances in petrochronology: from dates to ages and rates of deep orogenic processesLabrousse, Loic0https://orcid.org/0000-0001-7576-7570Bonnet, Guillaume1https://orcid.org/0000-0002-4128-9037François, Camille2https://orcid.org/0000-0002-6808-9369Godet, Antoine3https://orcid.org/0000-0001-7298-5142Gyomlai, Thomas4https://orcid.org/0000-0002-0544-7229Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP UMR 7193, F-75005 Paris, FranceSorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP UMR 7193, F-75005 Paris, FranceCommission de la Carte Géologique du Monde, 77 rue Claude Bernard, 75005 Paris, France; Sorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP UMR 7193, F-75005 Paris, FranceE4M, Département de géologie et de génie géologique, Université Laval, Québec, Canada; Natural Resources Canada, Geological Survey of Canada, 490 rue de la Couronne, Québec (Québec), G1K 9A9, CanadaSorbonne Université, CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP UMR 7193, F-75005 Paris, FranceIn order to decipher the prevalent processes active at depth in orogenic systems, their time sequence and their rates have to be assessed. This is essentially done via absolute dating of accessory and rock-forming metamorphic minerals. The interpretation of dates, now produced in high quantities and low uncertainties, with geochemical and textural information thanks to in situ dating techniques, into ages with a geological meaning, is based on sophisticated multi-disciplinary approaches. The wealth of data produced during the last decades in internal zones of mountain chains today questions some of the seminal concepts in geodynamics as well as in petrochronology. The concept of closure temperature [Jäger, 1967] but also the notions of metamorphic unit or metamorphic event are now to be considered in the light of campaign-style dating projects, that enable a comprehensive and statistical interpretation of age patterns from the mineral scale to the geodynamic process scale.https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.234/PetrochronologyTectonicsMetamorphism |
| spellingShingle | Labrousse, Loic Bonnet, Guillaume François, Camille Godet, Antoine Gyomlai, Thomas Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes Comptes Rendus. Géoscience Petrochronology Tectonics Metamorphism |
| title | Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes |
| title_full | Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes |
| title_fullStr | Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes |
| title_full_unstemmed | Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes |
| title_short | Recent advances in petrochronology: from dates to ages and rates of deep orogenic processes |
| title_sort | recent advances in petrochronology from dates to ages and rates of deep orogenic processes |
| topic | Petrochronology Tectonics Metamorphism |
| url | https://comptes-rendus.academie-sciences.fr/geoscience/articles/10.5802/crgeos.234/ |
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