Rapid surface uplift and crustal flow in the Central Andes (southern Peru) controlled by lithospheric drip dynamics

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dc.authoridSengul Uluocak, Ebru/0000-0002-6701-463X
dc.authoridGogus, Oguz/0000-0002-6199-303X
dc.contributor.authorGogus, Oguz H.
dc.contributor.authorSundell, Kurt
dc.contributor.authorUluocak, Ebru Sengul
dc.contributor.authorSaylor, Joel
dc.contributor.authorCetiner, Ugurcan
dc.date.accessioned2025-01-27T20:31:26Z
dc.date.available2025-01-27T20:31:26Z
dc.date.issued2022
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe high flux magmatism, crustal shortening/extension and plateau formation in Cordilleran orogenic systems have been explained by removal of lithosphere (lower crust and the sub-arc mantle lithosphere) that develops beneath the magmatic arc and hinterland regions. However, the primary role of this process driving surface uplift, and crustal deformation is not well understood. Here, reconciling geodynamic model predictions with lithospheric structure and paleoelevation estimates, we suggest that viscous drip-type lithospheric removal from beneath the Central (Peruvian) Andes can explain several tectonic features: (1) double humped shaped/axisymmetric topographic profile and rapid surface rise (up to 1.2 km in similar to 4.31 Myrs); (2) thicker crust associated with the lower surface elevation of the Altiplano plateau (Lake Titicaca region) (negative residual topography) and higher topography and thinner crust of Western and Eastern Cordilleras (positive residual topography); and (3) faster wave speed (colder)/sub-Moho anomaly underlying the Altiplano, surrounded by slower speed anomalies on both western arc-forearc areas and parts of the eastern Cordillera and Sub-Andes. Our results emphasize the important role of lithospheric drip and associated mantle dynamics in the transient evolution of Andean orogeny controlling surface uplift and crustal flow and thickening.
dc.description.sponsorshipANATEC (ILP/International Lithosphere Programme); 2232 International Fellowship for Outstanding Researchers Program of the Scientific and Technological Research Council of Turkey [118C329]
dc.description.sponsorshipNumerical calculations were done using a modified version of the SOPALE (2000) software. Phillip Fullsack at Dalhousie University originally developed the SOPALE modeling code with Chris Beaumont and his Geodynamics group. This study was jointly supported by ANATEC (ILP/International Lithosphere Programme) and the 2232 International Fellowship for Outstanding Researchers Program of the Scientific and Technological Research Council of Turkey (118C329). We benefited from constructive reviews by Fabio Capitanio and Martyn Unsworth.
dc.identifier.doi10.1038/s41598-022-08629-8
dc.identifier.issn2045-2322
dc.identifier.issue1
dc.identifier.pmid35365670
dc.identifier.scopus2-s2.0-85127403536
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1038/s41598-022-08629-8
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23149
dc.identifier.volume12
dc.identifier.wosWOS:000777214100029
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherNature Portfolio
dc.relation.ispartofScientific Reports
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectFold-Thrust Belt
dc.subjectGravitational-Instability
dc.subjectMantle Lithosphere
dc.subjectCenozoic Uplift
dc.subjectPlateau Uplift
dc.subjectClimate-Change
dc.subjectPuna Plateau
dc.subjectEvolution
dc.subjectAltiplano
dc.subjectNorthern
dc.titleRapid surface uplift and crustal flow in the Central Andes (southern Peru) controlled by lithospheric drip dynamics
dc.typeArticle

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