Present-day dynamic and residual topography in Central Anatolia

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dc.authoridGogus, Oguz/0000-0002-6199-303X
dc.contributor.authorUluocak, Ebru Sengul
dc.contributor.authorPysklywec, Russell
dc.contributor.authorGogus, Oguz H.
dc.date.accessioned2025-01-27T20:22:44Z
dc.date.available2025-01-27T20:22:44Z
dc.date.issued2016
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe Central Anatolian orogenic plateau is represented by young volcanism, rapid plateau uplift and distinctive (past and active) tectonic deformation. In this study, we consider observational data in terms of regional present-day geodynamics in the region. The residual topography of Central Anatolia was derived to define the regional isostatic conditions according to Airy isostasy and infer the potential role of 'dynamic topography'. 2-D thermomechanical forward models for coupled mantle-lithosphere flow/deformation were conducted along an N-S directional profile through the region (e.g. northern/Pontides, interior and southern/Taurides). These models were based on seismic tomography data that provide estimates about the present-day mantle thermal structure beneath the Anatolian plate. We compare the modelling results with calculated residual topography and independent data sets of geological deformation, gravity and high surface heat flow/widespread geothermal activity. Model results suggest that there is similar to 1 km of mantle flow induced dynamic topography associated with the sublithospheric flow driven by the seismically inferred mantle structure. The uprising mantle may have also driven the asthenospheric source of volcanism in the north (e.g. Galatia volcanic province) and the Cappadocia volcanic province in the south while elevating the surface in the last 10 Myr. Our dynamic topography calculations emphasize the role of vertical forcing under other orogenic plateaux underlain by relatively thin crust and low-density asthenospheric mantle.
dc.description.sponsorshipTUBITAK; NSERC
dc.description.sponsorshipAuthors acknowledge support from TUBITAK Visiting Scientist fellowship programme. RP acknowledges funding from an NSERC Discovery Grant. Numerical calculations were done using a modified version of the SOPALE (2000) software. The SOPALE modelling code was originally developed by Phillip Fullsack at Dalhousie University with Chris Beaumont and his Geodynamics group. We thank the anonymous reviewers and Laurent Husson for their useful comments and contributions to the manuscript.
dc.identifier.doi10.1093/gji/ggw225
dc.identifier.endpage1525
dc.identifier.issn0956-540X
dc.identifier.issn1365-246X
dc.identifier.issue3
dc.identifier.scopus2-s2.0-84988890395
dc.identifier.scopusqualityQ1
dc.identifier.startpage1515
dc.identifier.urihttps://doi.org/10.1093/gji/ggw225
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22014
dc.identifier.volume206
dc.identifier.wosWOS:000384650400006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherOxford Univ Press
dc.relation.ispartofGeophysical Journal International
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectMantle processes
dc.subjectDynamics of lithosphere and mantle
dc.subjectDynamics: convection currents
dc.subjectand mantle plumes
dc.subjectDynamics: gravity and tectonics
dc.subjectAsia
dc.titlePresent-day dynamic and residual topography in Central Anatolia
dc.typeArticle

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