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dc.contributor.author
Ding, Xuesong
dc.contributor.author
Dávila Kurbán, Federico
dc.contributor.author
Lithgow Bertelloni, Carolina
dc.date.available
2024-02-07T17:47:10Z
dc.date.issued
2023-05
dc.identifier.citation
Ding, Xuesong; Dávila Kurbán, Federico; Lithgow Bertelloni, Carolina; Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation; American Geophysical Union; Geochemistry Geophysics Geosystems; 24; 5; 5-2023; 1-15
dc.identifier.issn
1525-2027
dc.identifier.uri
http://hdl.handle.net/11336/226222
dc.description.abstract
Subduction of bathymetric anomalies (e.g., an active ridge) can alter the morphology of subducted slabs and their coupling to surface processes. A natural laboratory to study these effects is the subduction of the Oceanic Chilean Ridge beneath the South American plate, which led to the formation of the Patagonian slab window. Its formation and subsequent northward migration contributed to the regression of Patagoniense sea and exhumation of marine strata to their present elevation. To date, there is no quantitative analysis of the effects on the sediment routing system of the slab window. We modeled the Neogene topographic change and foreland sedimentary evolution from the Andean Cordillera to Atlantic margin. Our results show that subcrustal-driven subsidence correlated with accelerated subduction of the Nazca plate is required to explain the timing of the Patagonian transgression and thickness and spatial extent of marine beds during the incursion. In other words, traditional mechanisms, such as foreland flexure and global sea-level rise, are insufficient. The subsequent regression and accumulation of mid-Miocene alluvial-fluvial deposits were associated with the growth of the Cordillera and a possible flattening of Nazca subduction in the middle Miocene. Isostatic uplift of ∼1 km due to lithospheric thinning during slab window formation can explain the foreland exhumation, sediment bypass, and increases in the offshore sedimentation rate. However, spatial-temporal varying dynamic uplift is required to explain the along-strike variations in foreland sedimentation. Our study provides new insights into the interplay between slab window formation, crustal deformation, and landscape evolution.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
DYNAMIC TOPOGRAPHY
dc.subject
LANDSCAPE EVOLUTION MODELING
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PATAGONIAN SLAB WINDOW
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RETROARC FORELAND BASIN
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SOURCE-TO-SINK SEDIMENT TRANSPORT
dc.subject.classification
Geología
dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Mechanisms of Subsidence and Uplift of Southern Patagonia and Offshore Basins During Slab Window Formation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-06T14:07:15Z
dc.journal.volume
24
dc.journal.number
5
dc.journal.pagination
1-15
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Washington
dc.description.fil
Fil: Ding, Xuesong. University of California at Los Angeles; Estados Unidos
dc.description.fil
Fil: Dávila Kurbán, Federico. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
dc.description.fil
Fil: Lithgow Bertelloni, Carolina. University of California at Los Angeles; Estados Unidos
dc.journal.title
Geochemistry Geophysics Geosystems
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022GC010844
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2022GC010844
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