Paleomagnetic evidence for an inverse rotation history of Western Anatolia during the exhumation of Menderes core complex

Field evidence for normal fault linkage and relay ramp evolution: the Kırkağaç Fault Zone, western Anatolia (Turkey)

“…Recent tomographic and seismic studies reveal that slab edge processes and related backarc extension are the dominant driving force for western Anatolian and Aegean tectonics (Biryol, Beck, Zandt, & Özaçar, 2011;Faccenna, Bellier, Martinod, Piromallo, & Regard, 2006;Gans, Beck, Zandt, Biryol, & Ozacar, 2009;Gessner, Gallardo, Markwitz, Ring, & Thomson, 2013;Jolivet et al, 2013;Uzel et al, 2015;van Hinsbergen, Hafkenscheid, Spakman, Meulenkamp, & Wortel, 2005;van Hinsbergen, Kaymakçı, Spakman, & Torsvik, 2010). The main characteristics of this regional extension are as follows: (i) E-W trending detachment faults (Bozkurt, 2006;Bozkurt & Sözbilir, 2004;Emre, 1996;Emre & Sözbilir, 1997;Hetzel, Passchier, & Ring, 1995;Hetzel, Ring, & Akal, 1995;Hetzel et al, 2013;Işık, Seyitoğlu, & Çemen, 2003;Lips, Cassard, Sözbilir, Yılmaz, & Wijbrans, 2001;Sözbilir, 2001), (ii) E-W trending high angle normal faults that cut and offset the detachments (Bozkurt, 2003(Bozkurt, , 2004(Bozkurt, , 2007Bozkurt & Park, 1994;Çiftçi & Bozkurt, 2009;Gessner et al, 2001;Hetzel, Romer, Candan, & Passchier, 1998;Işık & Tekeli, 2001;Işık, Tekeli, & Seyitoğlu, 2004;Işık et al, 2003;Kaymakci, 2006;Koçyiğit, Yusufoğlu, & Bozkurt, 1999;Okay & Satır, 2000;Özkaymak, Sözbilir, & Uzel, 2011;…”

“…This transcurrent tectonics can easily produce folding in the basement rocks and Miocene units during the strike-slip deformation of the İBTZ prior to the Holocene. Uzel et al (2013Uzel et al ( , 2015 argued that the İBTZ recently evolved into a narrow discrete zone, we see today. This may indicate that the KFZ was part of İBTZ as a strike-slip fault zone.…”

Comment on “Paleomagnetic evidence for an inverse rotation history of Western Anatolia during the exhumation of Menderes core complex” by Uzel et al. (Earth Planet. Sci. Lett. 415 (2015) 108–125)

“…This would be important to DOI describe the relationship among rotational history related to the transfer zones, core complex formation and episodic or continuous extension. In the light of present data provided by Uzel et al (2015) it may be assumed that a major change in the tectonic configuration of western Turkey occurred between Middle and Late Miocene and İ BTZ had a substantial role in the development of core complexes under episodic or continuous extension. Therefore, a contribution to solving the question "how has İ BTZ shaped the development of two distinct core complexes, northern and central Menderes MCCs?"…”

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In a recent article published in EPSL, Uzel et al (2015) reported a paleomagnetic evidence on various rock types from Western Anatolia. It has been suggested that vertical axis rotations driven by the differential stretching along the İ zmir Balıkesir Transfer Zone (İBTZ) were caused by slab detachment and slab tear processes at the northern edge of subducting African slab.

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An extensional and transtensional origin of elongated magmatic domes and localised transfer faults in the northern Menderes metamorphic core complex, western Turkey

“…The shear zones on the western margin are inferred to have been active since Late Cretaceous and are comprised of major NE-trending dextral and sinistral fault sets accompanied by NW-and E-W-trending faults (İzmir-Balıkesir Transfer Zone, (Erkül, Helvacı, & Sözbilir, 2005); İzmir shear zone, (Brun & Sokoutis, 2010); the West Anatolia Transfer Zone, (Gessner, Gallardo, Markwitz, Ring, & Thomson, 2013)). But the tectonic evolution of the zone is still controversial due to multiphase deformational periods, block rotations and complex interactions between core complexes and strike-slip/rift-related faults (Karaoğlu, 2014;Karaoğlu & Erkül, 2015;Ring et al, 1999;Uzel et al, 2015). The eastern margin of the Menderes Massif is bordered by a sinistral shear zone named Uşak-Muğla transfer zone, which is supposed to have acted in a transtensional setting since early middle Miocene (Karaoğlu & Helvacı, 2012, 2014.…”