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Pure dip-slip along the Tuz Gölü Fault Zone accommodates east-west extension of Central Anatolia

Kinematic constraints on faults with slow slip rates often diverge, obscuring their neotectonic significance and seismic hazards. The Tuz Gölü Fault Zone (TGFZ) is a major slow-moving fault accommodating intraplate deformation within Central Anatolia, for which long-term geological and short-term...

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Main Authors: Gençoğlu Korkmaz, Gülin (Author) , Harvey, Janet C. (Author) , Danišik, Martin (Author) , Schoenbohm, Lindsay M. (Author) , Schmitt, Axel Karl (Author)
Format: Article (Journal)
Language:English
Published: 30 April 2025
In: Communications earth & environment
Year: 2025, Volume: 6, Issue: 1, Pages: 1-12
ISSN:2662-4435
DOI:10.1038/s43247-025-02192-6
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s43247-025-02192-6
Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s43247-025-02192-6
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Author Notes:Gülin Gençoğlu Korkmaz, Janet C. Harvey, Martin Danišík, Lindsay M. Schoenbohm & Axel K. Schmitt
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Summary:Kinematic constraints on faults with slow slip rates often diverge, obscuring their neotectonic significance and seismic hazards. The Tuz Gölü Fault Zone (TGFZ) is a major slow-moving fault accommodating intraplate deformation within Central Anatolia, for which long-term geological and short-term geodetic deformation rates disagree. Here, the Pleistocene-Recent kinematic evolution of the TGFZ is determined by dating dissected lava flows of the Hasandağ stratocone. Combined zircon U-Th and (U-Th)/He ages indicate emplacement between 151 ± 6 ka and 38.8 ± 2.0 ka (2σ uncertainties). Restoring flow levees as tie points across fault scarps yields vertical displacement rates of 0.90 ± 0.06 to 1.23 ± 0.08 mm/a for the most reliable projections, whereas in contrast to previous notions only negligible dextral strike slip at 0.01 ± 0.08 to 0.06 ± 0.08 mm/a is permitted. Predominantly normal faulting without a major strike-slip component for the TGFZ supports ongoing east-west extension without the requirement for shearing due to north-south shortening of Central Anatolia between its bounding megashears as it gradually escapes westward.
Item Description:Gesehen am 23.10.2025
Physical Description:Online Resource
ISSN:2662-4435
DOI:10.1038/s43247-025-02192-6

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