Geology of the Bozdag area, central Menderes massif, SW Turkey: Pan-African basement and Alpine deformation

1998 ◽  
Vol 87 (3) ◽  
pp. 394-406 ◽  
Author(s):  
R. Hetzel ◽  
R. L. Romer ◽  
O. Candan ◽  
C. W. Passchier
Keyword(s):  
Menderes Massif ◽  
Pan African ◽  
Sw Turkey

Discussion on the evolution of the Southern Menderes Massif in SW Turkey as revealed by zircon dating

2001 ◽  
Vol 158 (2) ◽  
pp. 393-395 ◽  
Author(s):  
ERDIN BOZKURT ◽  
R. GRAHAM PARK ◽  
STEFFEN LOOS ◽  
THOMAS REISCHMANN
Keyword(s):  
Zircon Dating ◽  
Menderes Massif ◽  
Sw Turkey

Extensional v. contractional origin for the southern Menderes shear zone, SW Turkey: tectonic and metamorphic implications

2006 ◽  
Vol 144 (1) ◽  
pp. 191-210 ◽  
Author(s):  
ERDİN BOZKURT
Keyword(s):  
Shear Zone ◽  
Thrust Fault ◽  
Menderes Massif ◽  
Shear Structures ◽  
Rock Types ◽  
Almost Everywhere ◽  
Sw Turkey ◽  
Fission Track Thermochronology ◽  
Ductile Shear ◽  
Characteristic Features

The southern Menderes Massif in southwest Turkey consists mainly of orthogneisses and overlying Palaeozoic–Middle Paleocene schists and marbles. The contact between the two distinct rock types is almost everywhere structural, herein named the southern Menderes shear zone: a S-facing, high-angle ductile shear zone that separates metamorphic rocks of differing grade. Although there is a consensus that the shear zone was associated with top-to-the-S–SSW shearing and is of Tertiary age, its origin and nature have been highly debated over the last decade. Some claim the contact is a thrust fault, while others have argued for an extensional shear zone. Integration of field and microstructural data (the identification of different fabrics, associated kinematics and overprinting relationships) with fission-track thermochronology and the P–T paths of the rocks above and below the shear zone, supports the conclusion that the southern Menderes shear zone is an extensional shear zone and not a thrust. The data are consistent with a model that the exhumation and cooling of the southern Menderes Massif occurred after a period of extensional deformation. Pervasive top-to-the-N–NNE high-temperature–medium-pressure ductile shear structures (D2 deformation) overprint an early HP event (D1 deformation). The subsequent top-to-the-S–SSW greenschist shear band foliation (D3 deformation) developed mostly around the orthogniess–schist contact and forms the most characteristic features of the massif. The top-to-the-N–NNE structures are attributed to the main Alpine constructional deformation that developed during back-thrusting of the Lycian nappes during the latest Palaeogene collision between the Sakarya continent and the Anatolide-Tauride platform across the Neotethyan Ocean. The top-to-the-S–SSW structures are interpreted to be the result of the exhumation of the massif during the activity of the southern Menderes shear zone. The presence of these two distinct fabrics with differing kinematics suggests that the southern Menderes shear zone operated as a top-to-the-N–NNE thrust fault during early Alpine contractional deformation but was later reactivated with an opposite sense of movement (top-to-the-S–SSW) during subsequent Oligocene–Miocene extensional collapse.

scholarly journals Implications for Thrust‐Related Shortening Punctuated by Extension From P‐T Paths and Geochronology of Garnet‐Bearing Schists, Southern (Çine) Menderes Massif, SW Turkey

Tectonics ◽  
2019 ◽  
Vol 38 (6) ◽  
pp. 1974-1998 ◽  
Author(s):  
T. M. Etzel ◽  
E. J. Catlos ◽  
K. Ataktürk ◽  
O. M. Lovera ◽  
E. D. Kelly ◽  
...  
Keyword(s):  
Menderes Massif ◽  
Sw Turkey

Gem-quality transparent diaspore (zultanite) in bauxite deposits of the İlbir Mountains, Menderes Massif, SW Turkey

2009 ◽  
Vol 45 (2) ◽  
pp. 201-205 ◽  
Author(s):  
Murat Hatipoğlu ◽  
Necdet Türk ◽  
Steven C. Chamberlain ◽  
A. Murat Akgün
Keyword(s):  
Menderes Massif ◽  
Sw Turkey

scholarly journals Exhumation Paths of High-Pressure–Low-Temperature Metamorphic Rocks from the Lycian Nappes and the Menderes Massif (SW Turkey): a Multi-Equilibrium Approach

2004 ◽  
Vol 46 (3) ◽  
pp. 641-669 ◽  
Author(s):  
GAËTAN RIMMELÉ ◽  
TEDDY PARRA ◽  
BRUNO GOFFÉ ◽  
ROLAND OBERHÄNSLI ◽  
LAURENT JOLIVET ◽  
...  
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Metamorphic Rocks ◽  
Menderes Massif ◽  
Sw Turkey ◽  
Equilibrium Approach

Intrusion age of Pan-African augen gneisses in the southern Menderes Massif and the age of cooling after Alpine ductile extensional deformation

1996 ◽  
Vol 133 (5) ◽  
pp. 565-572 ◽  
Author(s):  
R. Hetzel ◽  
T. Reischmann
Keyword(s):  
Shear Zone ◽  
Static Recrystallization ◽  
Ductile Deformation ◽  
Late Oligocene ◽  
Extensional Deformation ◽  
Menderes Massif ◽  
Pan African ◽  
Single Zircon ◽  
Quartz Fabrics ◽  
Augen Gneiss

AbstractPb–Pb single zircon ages of 546.2 ± 1.2 Ma demonstrate that the augen gneisses in the southern Menderes Massif were generated from Pan-African intrusions. During the Alpine orogenic evolution of the Menderes Massif these granites were metamorphosed and transformed into augen gneiss in an extensional top-to-the-south shear zone, located between augen gneisses and overlying schists. Quartz fabrics suggest a pronounced static recrystallization that post-dates the ductile deformation in the shear zone. Ar–Ar muscovite ages of 43–37 Ma from augen gneisses and schists suggest that ductile deformation and subsequent cooling occurred in the Eocene. These results contradict previous models that (1) interpret the extensional shear zone as late Oligocene in age and (2) regard the augen gneisses as syntectonic with respect to ductile extensional deformation.

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