Jeomorfik indisler kullanılarak honaz fayı’nın (GB Türkiye) göreceli tektonik aktivitesinin belirlenmesi

Year 2018, Volume: 24 Issue: 6, 1200 - 1208, 18.12.2018

Savaş Topal Mehmet Özkul

Abstract

Bu çalışmada, Honaz fayının göreceli tektonik
aktivitesinin belirlenmesi için, dağ önü sinüslülük oranı (Smf), üçgen yüzler,
vadi taban genişliğinin vadi yüksekliğine oranı (Vf), drenaj havzası asimetrisi
(AF), hipsometrik integral (HI) ve drenaj havzası şekli (Bs) gibi jeomorfik
indisler hesaplanmıştır. İndis analizlerinin sonuçları değerlendirilmiş ve daha
sonra göreceli tektonik aktivite indisi (Iat) olarak tekrar değerlendirme
yapılmıştır. Farklı Iat değerlerine dayanarak, sonuçları nispeten en düşükten
en yüksek tektonik aktiviteye kadar dört sınıfa bölünmüştür. Honaz Fayı ile
Honaz Dağı arasındaki drenaj havzası alanı, göreceli tektonik aktiviteyi test
etmek için ideal bir yerdir. Honaz Dağı'nın kuzey sınır fayı olan Honaz fayı
morfolojik olarak Karateke ve Honaz segmentlerine ayrılmıştır. Bu iki segmentte
hesaplanan indis değerleri, Smf (1.12-1.41), üçgen yüzeyler (Lf/Ls: 0.3-0.46),
Vf (0.08-0.7), AF (32-77), HI (0.1-0.6) ve Bs (1.53-5.06)’dır. Bu çalışmanın
sonuçları Honaz Fayının özellikle orta kesimlerinde çok yüksek ve yüksek
tektonik aktivitenin varlığını ortaya koymaktadır. Araştırmanın sonucu, Honaz
Dağı’nın bu bölümünün jeomorfik evriminde neotektonizmanın önemli bir rol
oynadığını göstermektedir. Elde edilen sonuçların yanı sıra bölgedeki sismik
aktivite, sıcak su kaynaklarına bağlı traverten oluşumları ve fay hatlarının
önündeki alüvyon yelpazelerinin varlığı bölgedeki yüksek tektonik aktiviteyi
desteklemektedir.

Keywords

Honaz fayı, Tektonik jeomorfoloji, Göreceli tektonik aktivite, Jeomorfik indis, Güneybatı Anadolu

Determination of relative tectonic activity of the Honaz fault (SW Turkey) using geomorphic indices

Abstract

In this study, in order to determine relative
tectonic activity of the Honaz Fault, geomorphic indices such as triangular
facets, drainage basin asymmetry (AF), hypsometric integral (HI), drainage
basin shape (Bs), ratio of valley-floor width to valley height (Vf), and mountain
front sinuosity (Smf) have been calculated. The results of the indice analysis
were evaluated and then index of the relative tectonic activity (Iat) were
re-evaluated. Base on the different Iat values, the results were divided into four
classes that range from the relatively highest to the relatively lowest
tectonic activity. The drainage basin area between Honaz Fault and Mount Honaz
is an ideal place to test relative tectonic activity. The Honaz fault that is
the north boundary fault of the Honaz Mountain has been divided into the
Karateke segment and Honaz segment. The indice values calculated from these
segments are triangular facets (Lf / Ls: 0.3-0.46), AF (32-77), HI (0.1-0.6), Vf (0.08-0.7), Bs (1.53-5.06)
and Smf (1.12-1.41). The results of this study exhibit the presence of high to
very high tectonic activity especially in the central part of the Honaz Fault.
Based the results, the neotectonics played an important role in geomorphic
evolution of this part of the Honaz Mountain. In addition to the results
obtained, evidence of seismic activity, travertine occurrences due to thermal
springs and alluvial fans in front of fault zones support high tectonic
activity in the region.

Keywords

Honaz fault, Tectonic geomorphology, Relative tectonic activity, Geomorphic indices, Western Anatolian

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