SEYFE FAY ZONUNA AİT KİL MİNERALLERİNİN YAŞI, PETROGRAFİSİ VE KİNEMATİĞİ: ORTA ANADOLU, TÜRKİYE

Yıl 2018, Cilt: 7 Sayı: 3, 1066 - 1071, 28.12.2018

Mehmet Furkan Şener Mehmet Şener Muhammed Zeynel Öztürk1

Öz

Çalışma alanı Orta Anadolu Kristalen
Karmaşığı (OAKK) içerisinde Seyfe Fay Zonu (SFZ) ve uzantısı olan Boğazlıyan
Fayı üzerinde yer almaktadır. SFZ, Orta Anadolu’daki en önemli bölgesel ölçekli
fay sistemlerinden birini temsil etmekte ve Neo-Tetis'in kapanması sırasında
ortaya çıkan çarpışma olaylarının kayıtlarını bulundurmaktadır. SFZ, BKB-DGD
doğrultulu sağ yanal doğrultu atımlı faylardan oluşmaktadır. Tüm kaya ve kil
XRD ile eser element verileri illitlerin derin tektonik aktivite esnasında
yüzeye ulaşan hidrotermal sulardan çökeldiğini göstermektedir. Bu akışkanlar,
sığ kırılgan deformasyon bölgeleri boyunca yüzeye doğru göç etmiştir. Farklı
kataklastik zonlardaki (1266, 1276 ve 1488 m) illitlerden yapılan Rb-Sr
jeokronolojisi aktivitenin yaşını 21,4 ± 0,57 My olarak göstermiştir. Buna göre
SFZ, Erken Miyosen’e kadar uzanır ve bu da hem göreceli yaşlarla hem de OAKK
içerisindeki yapılan önceki çalışmalarda önerilen yaş verileri ile tutarlıdır. Muhtemel
bir bindirme zonuna ait olan 1266 m ve 1276 m örnekleri Burdigaliyen dönemi
olarak kabul edilen Paleotetisin kapanmasının ve Neotetisin başlangıcının OAKK
içerisinde yaklaşık 21 my önce gerçekleştiğini ortaya koymaktadır.

Anahtar Kelimeler

Seyfe Fay Zonu, Boğazlıyan Fayı, Jeokronoloji, Rb-Sr, Orta Anadolu

AGE, PETROGRAPHY AND KINEMATICS OF CLAY MİNERALS OF SEYFE FAULT ZONE: CENTRAL ANATOLIA, TURKEY

Öz

The study area is located on the Seyfe Fault Zone (SFZ) and Boğazlıyan
Fault which is thought to be extension of Seyfe Fault Zone in Central Anatolian
Crystalline Complex (CACC). The SFZ represents one of the most important
regional-scale fault systems in Central Anatolia and has records the collision
events that occurred during the closure of Neo-Tethys. The SFZ consists of
WNW-ESE oriented dextral strike-slip faults. Whole rock and clay XRD and trace
element data show that clay minerals collapse from hydrothermal water reaching
the surface during deep tectonic activity. These fluids are migrated upward
along shallow fragile deformation zones. The age of Rb-Sr geochronology of
three different cataclastic zones as 1266, 1276 and 1488
m, showed the age of activity as 21.4 ± 0.57 Ma. According to this, the SFZ
extends to the early Miocene and is consistent with both the relative age and
the age data suggested in previous studies conducted within the CACC. Samples of 1266 m and 1276 m belonging to a possible
thrust zone reveal that the closure of Palaeotethys and the beginning of
Neotethys, which is accepted as Burdigalian period, occurred around 21 Ma ago
in the Central Anatolian Crystalline Complex.

Anahtar Kelimeler

Seyfe Fault Zone, Boğazlıyan Fault, Geochronology, Rb-Sr, Central Anatolia

Kaynakça

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