Crustal flow driving twin domes exhumation and low-angle normal faulting in the 
Menderes Massif of western Anatolia

Bodur, Ömer; Göğüş, Oğuz Hakan; Brune, Sascha; Şengül Uluocak, Ebru; Glerum, A.; Fichtner, Andreas; Sözbilir, Hasan

doi:10.1016/j.epsl.2023.118309

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Crustal flow driving twin domes exhumation and low-angle normal faulting in the Menderes Massif of western Anatolia

Authors

Bodur, Ömer
External Organizations;

Göğüş, Oğuz Hakan
External Organizations;

/persons/resource/brune

Brune, Sascha
2.5 Geodynamic Modelling, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Şengül Uluocak, Ebru
External Organizations;

/persons/resource/acglerum

Glerum, A.
2.5 Geodynamic Modelling, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
3.1 Inorganic and Isotope Geochemistry, 3.0 Geochemistry, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Fichtner, Andreas
External Organizations;

Sözbilir, Hasan
External Organizations;

External Ressource

No external resources are shared

Fulltext (public)

There are no public fulltexts stored in GFZpublic

Supplementary Material (public)

There is no public supplementary material available

Citation

Bodur, Ö., Göğüş, O. H., Brune, S., Şengül Uluocak, E., Glerum, A., Fichtner, A., Sözbilir, H. (2023): Crustal flow driving twin domes exhumation and low-angle normal faulting in the Menderes Massif of western Anatolia. - Earth and Planetary Science Letters, 619, 118309.
https://doi.org/10.1016/j.epsl.2023.118309

Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5022206

Abstract

Lower crustal flow in regions of post-orogenic extension has been inferred to explain the exhumation of metamorphic core complexes and associated low-angle normal (detachment) fault systems. However, the origin of detachment faults, whether initially formed as high-angle or low-angle shear zones, and the extension is symmetric or asymmetric remains enigmatic. Here, we use numerical modeling constrained by geophysical and geological data to show that symmetric extension in the central Menderes Massif of western Anatolia is accommodated by the crustal flow. Our geodynamic model explains how opposite dipping Gediz and Büyük Menderes detachment faults are formed by ∼40° footwall rotation. Model predictions agree with seismic tomography data that suggests updoming of lower crust beneath the exhumed massifs, represented as “twin domes” and a flat Moho. Our work helps to account for the genetic relation between the exhumation of metamorphic core complexes and low-angle normal faulting in both Cordillera and Aegean orogenic regions and has important implications on crustal dynamics in extensional provinces.