Thermomechanical modeling of slab eduction
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- T Duretz
- TV Gerya
- BJP Kaus
- TB Andersen
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000307738600001&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1029/2012JB009137
- eISSN
- 2169-9356
- Externe Identifier
- Clarivate Analytics Document Solution ID: 991YA
- Zeitschrift
- JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
- Artikelnummer
- ARTN B08411
- Datum der Veröffentlichung
- 2012
- Status
- Published
- Titel
- Thermomechanical modeling of slab eduction
- Sub types
- Article
- Ausgabe der Zeitschrift
- 117
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Abstract
- <jats:p>Plate eduction is a geodynamic process characterized by normal‐sense coherent motion of previously subducted continental plate. This mechanism may occur after slab detachment has separated the negatively buoyant oceanic plate from the positively buoyant orogenic root. Eduction may therefore be partly responsible for exhumation of high pressure rocks and late orogenic extension. We used two‐dimensional thermomechanical modeling to investigate the main features of the plate eduction model. The results show that eduction can lead to the quasi adiabatic decompression of the subducted crust (≈2 GPa) in a timespan of 5 My, large localized extensional strain in the former subduction channel, flattening of the slab, and a topographic uplift associated with extension of the orogen. In order to further investigate the forces involved in the eduction process, we ran systematic parametric simulations and compared them to analytic plate velocity estimations. These experiments showed that eduction is a plausible mechanism as long as the viscosity of the asthenospheric mantle is lower than 10<jats:sup>22</jats:sup> Pa.s while subduction channel viscosity does not exceed 10<jats:sup>21</jats:sup> Pa.s. We suggest that eduction can be a viable geodynamic mechanism and discuss its potential role during the orogenic evolution of the Norwegian Caledonides.</jats:p>
- Autoren
- T Duretz
- TV Gerya
- BJP Kaus
- TB Andersen
- DOI
- 10.1029/2012jb009137
- ISSN
- 0148-0227
- Ausgabe der Veröffentlichung
- B8
- Zeitschrift
- Journal of Geophysical Research: Solid Earth
- Sprache
- en
- Online publication date
- 2012
- Datum der Veröffentlichung
- 2012
- Status
- Published
- Herausgeber
- American Geophysical Union (AGU)
- Herausgeber URL
- http://dx.doi.org/10.1029/2012jb009137
- Datum der Datenerfassung
- 2023
- Titel
- Thermomechanical modeling of slab eduction
- Ausgabe der Zeitschrift
- 117
Data source: Crossref
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