Climatic control on the location of continental volcanic arcs
Abstract Orogens and volcanic arcs at continental plate margins are primary surface expressions of convergent plate tectonics. Although it is established that climate affects the shape, size, and architecture of orogens via orographic erosion gradients, the ascent of magma through the crust and loca...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-12-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-26158-2 |
| _version_ | 1797977557984870400 |
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| author | Veleda A. P. Muller Pietro Sternai Christian Sue Thibaud Simon-Labric Pierre G. Valla |
| author_facet | Veleda A. P. Muller Pietro Sternai Christian Sue Thibaud Simon-Labric Pierre G. Valla |
| author_sort | Veleda A. P. Muller |
| collection | DOAJ |
| description | Abstract Orogens and volcanic arcs at continental plate margins are primary surface expressions of convergent plate tectonics. Although it is established that climate affects the shape, size, and architecture of orogens via orographic erosion gradients, the ascent of magma through the crust and location of volcanoes along magmatic arcs have been considered insensitive to erosion. However, available data reveal westward migration of late-Cenozoic volcanic activity in the Southern Andes and Cascade Range where orography drives an eastward migration of the topographic water divide by increased precipitation and erosion along west-facing slopes. Thermomechanical numerical modeling shows that orographic erosion and the associated leeward topographic migration may entail asymmetric crustal structures that drive the magma ascent toward the region of enhanced erosion. Despite the different tectonic histories of the Southern Andes and the Cascade Range, orographic erosion is a shared causal mechanism that can explain the late-Cenozoic westward migration of the volcanic front along both magmatic arcs. |
| first_indexed | 2024-04-11T05:08:51Z |
| format | Article |
| id | doaj.art-b33748fda41545e4adde987c28f1a19f |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T05:08:51Z |
| publishDate | 2022-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b33748fda41545e4adde987c28f1a19f2022-12-25T12:11:03ZengNature PortfolioScientific Reports2045-23222022-12-0112111310.1038/s41598-022-26158-2Climatic control on the location of continental volcanic arcsVeleda A. P. Muller0Pietro Sternai1Christian Sue2Thibaud Simon-Labric3Pierre G. Valla4Dipartimento di Scienze dell’Ambiente e della Terra (DISAT), Università degli Studi di Milano-BicoccaDipartimento di Scienze dell’Ambiente e della Terra (DISAT), Università degli Studi di Milano-BicoccaInstitut des Sciences de la Terre (ISTerre), Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, Université Gustave EiffelCentre de Géologie Oisans AlpesInstitut des Sciences de la Terre (ISTerre), Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, IRD, IFSTAR, Université Gustave EiffelAbstract Orogens and volcanic arcs at continental plate margins are primary surface expressions of convergent plate tectonics. Although it is established that climate affects the shape, size, and architecture of orogens via orographic erosion gradients, the ascent of magma through the crust and location of volcanoes along magmatic arcs have been considered insensitive to erosion. However, available data reveal westward migration of late-Cenozoic volcanic activity in the Southern Andes and Cascade Range where orography drives an eastward migration of the topographic water divide by increased precipitation and erosion along west-facing slopes. Thermomechanical numerical modeling shows that orographic erosion and the associated leeward topographic migration may entail asymmetric crustal structures that drive the magma ascent toward the region of enhanced erosion. Despite the different tectonic histories of the Southern Andes and the Cascade Range, orographic erosion is a shared causal mechanism that can explain the late-Cenozoic westward migration of the volcanic front along both magmatic arcs.https://doi.org/10.1038/s41598-022-26158-2 |
| spellingShingle | Veleda A. P. Muller Pietro Sternai Christian Sue Thibaud Simon-Labric Pierre G. Valla Climatic control on the location of continental volcanic arcs Scientific Reports |
| title | Climatic control on the location of continental volcanic arcs |
| title_full | Climatic control on the location of continental volcanic arcs |
| title_fullStr | Climatic control on the location of continental volcanic arcs |
| title_full_unstemmed | Climatic control on the location of continental volcanic arcs |
| title_short | Climatic control on the location of continental volcanic arcs |
| title_sort | climatic control on the location of continental volcanic arcs |
| url | https://doi.org/10.1038/s41598-022-26158-2 |
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