Magnetostratigraphy of early–middle Miocene deposits from east–west trending Alaşehir and Büyük Menderes grabens in western Turkey, and its tectonic implications

2009 ◽  
Vol 311 (1) ◽  
pp. 321-342 ◽  
Author(s):  
Sevket Sen ◽  
Gürol Seyitoğlu
Keyword(s):  
Middle Miocene ◽  
Western Turkey ◽  
Tectonic Implications ◽  
East West

Evidence for two episodes of volcanism in the Bigadiç borate basin and tectonic implications for western Turkey

2005 ◽  
Vol 40 (5) ◽  
pp. 545-570 ◽  
Author(s):  
Fuat Erkül ◽  
Cah??t Helvaci ◽  
Hasan Sözb??l??r
Keyword(s):  
Western Turkey ◽  
Tectonic Implications

scholarly journals A new Middle Miocene mammalian fauna from Mordoğan (Western Turkey)

PalZ ◽  
2004 ◽  
Vol 78 (1) ◽  
pp. 231-231
Author(s):  
Tanju Kaya ◽  
Denis Geraads ◽  
Vahdet Tuna
Keyword(s):  
Middle Miocene ◽  
Mammalian Fauna ◽  
Western Turkey

Late Cenozoic tectono-sedimentary development of the Selendi and Uşak-Güre basins: a contribution to the discussion on the development of east–west and north trending basins in western Turkey

1997 ◽  
Vol 134 (2) ◽  
pp. 163-175 ◽  
Author(s):  
GÜROL SEYİTOĞLU
Keyword(s):  
Data Base ◽  
Early Miocene ◽  
Late Cenozoic ◽  
Western Turkey ◽  
The North ◽  
East West

This paper expands the K–Ar dating and palynologically controlled stratigraphical data base reported in earlier papers to the north trending Selendi and Uşak-Güre basins located to the north of east–west trending Alaşehir graben in western Turkey. These north trending basins began to form during Early Miocene times and most of their basin fills accumulated before 14 Ma, except for the youngest Asartepe formation. Recent studies of both east–west grabens and north trending basins show that they started to develop simultaneously during Early Miocene times under the north–south extensional regime, and the classification of the structures as ‘replacement’ and ‘revolutionary’ has no meaning for the Alaşehir graben and the basins located to its north.

Rift formation in the Gökova region, southwest Anatolia: implications for the opening of the Aegean Sea

1995 ◽  
Vol 132 (6) ◽  
pp. 637-650 ◽  
Author(s):  
N. Görür ◽  
A. M. C. Sengör ◽  
M. Sakinü ◽  
R. Akkök ◽  
E. Yiğitbaş ◽  
...  
Keyword(s):  
Middle Miocene ◽  
Aegean Sea ◽  
Early Miocene ◽  
Late Oligocene ◽  
Extensional Tectonics ◽  
Aegean Area ◽  
Aegean Region ◽  
Regional Geology ◽  
Palaeomagnetic Data ◽  
East West

AbstractThe time of the onset and the nature of the extension in the Aegean area have been problematic owing to the confusion of neotectonic replacement structures with neotectonic revolutionary structures. This paper concerns two rift systems of different ages and orientations in the Gökova region of southwestern Anatolia. The first system has a northwest—southeast trend with a Middle to Upper Miocene infill, whereas the second system is orientated in an east—west direction and filled with Plio-Quaternary rocks. Structural and palaeomagnetic data indicate that the first system originally had a north—south trend, and then bodily rotated anticlockwise to its present orientation before the end of the Miocene. Both the orientations and the structural patterns of these cross-cutting rift systems suggest that they resulted from two different and successive tectonic régimes. Regional geology suggests that the generative régime of the older system was characterized by north—south compression and related to the palaeotectonic evolution of southwestern Anatolia, whereas that of the younger system is characterized by north-south extension and relates to the neotectonic evolution of this region. This inference contradicts, at least in southwestern Anatolia, some recent claims that the extensional tectonics and the related rift formation in the Aegean region began in the early Miocene, with the alleged demise of the compressional palaeotectonics during the late Oligocene, but is consistent with older views that placed the onset of north—south extension into the later middle Miocene. The formation of the Aegean Sea seems to be the result of these two complicated and contrasting, succesive tectonic regimes that have affected this region since middle Miocene times.

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