MODELLING OF CRUST STRUCTURE OF CENTRAL ANATOLIA REGION

Yıl 2021, Cilt: 8 Sayı: 15, 486 - 497, 31.12.2021

Ali Elmas

https://doi.org/10.54365/adyumbd.952257

Cited By: 2

Öz

In this study, the crustal structure of Central Anatolia was modeled and the crustal and tectonic structure of the region was investigated. For this purpose, the filtered satellite gravity data were evaluated with the Parker-Oldenburg modelling algorithm and the first vertical derivative data were evaluated with the total horizontal derivative technique. While investigating the structural discontinuities of the region at the basement levels, the maximum amplitudes of the horizontal derivative map were used. With the total horizontal derivative map, new discontinuities were found in the basement levels in the study area. The descending and rising parts of the crustal interface topographies were determined using the Parker-Oldenburg modelling algorithm. In order to carry out these operations, first of all, the gravity data was filtered according to the shear wave numbers. Besides the new lineaments found, the depths of the calculated interface topographies are determined as 1.4 - 3.6 km for soft - hard sediment, 3.8 - 7.2 km for basement, 15.5 - 22.5 km for Conrad, 30.5 - 39.5 km for Moho and 81.4 - 88.5 km for LAB, respectively.

Anahtar Kelimeler

Central Anatolia, Horizontal Derivative, Vertical Derivative, Discontinuity, Modelling

İÇ ANADOLU BÖLGESİ KABUK YAPISININ MODELLENMESİ

Öz

Bu çalışmada, İç Anadolu'nun kabuk yapısı modellenmiştir ve bölgenin kabuk ve tektonik yapısı araştırılmıştır. Bu nedenle filtrelenmiş uydu gravite verileri modelleme tekniği ile değerlendirilmiş ve düşey birinci türev verileri toplam yatay türev tekniği ile değerlendirilmiştir. Bölgenin yapısal süreksizlikleri temel kaya seviyelerinde araştırılırken, yatay türev haritasının maksimum genliklerinden yararlanılmıştır. Toplam yatay türev haritası ile çalışma alanındaki temel kaya seviyelerinde yeni süreksizlikler bulunmuştur. Kabuksal arayüz topografyalarındaki alçalma ve yükselme kısımları Parker-Oldenburg inversiyon algoritması kullanılarak belirlendi. Bu işlemlerin yapılabilmesi için öncelikle gravite verileri kesme dalgası sayılarına göre filtrelenmiştir. Bulunan yeni çizgiselliklerin yanı sıra, hesaplanan ara yüzey topografyalarının derinlikleri sırasıyla yumuşak - sert sediment için 1,4 - 3,6 km, temel kaya için 3,8 - 7,2 km, Conrad için 15,5 - 22,5 km, Moho için 30,5 - 39,5 km ve LAB için 81,4 - 88,5 km olarak belirlenmiştir.

Anahtar Kelimeler

İç Anadolu, Yatay Türev, Düşey Türev, Süreksizlik, Modelleme

Kaynakça

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