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GİRİT BÖLGESİNİN İZAFİ KABUK KALINLIĞI DEĞİŞİMİNİN MANYETİK VE SERBEST HAVA GRAVİTE ANOMALİLERİ İLE İRDELENMESİ

INVESTIGATING OF RELATIVE CRUSTAL THICKNESSES VARIATION OF CRETAN REGION WITH MAGNETIC AND FREE AIR GRAVITY ANOMALIES

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Abstract (2. Language): 
Cretan Arc area where the plates of Africa and Aegean converge, is an active subduction still undergoing. In this respect the Cretan Arc is one of the most complex within the Eastern Mediterranean tectonics. In order to explain this structure, the crustal structure of this area lying in the coordinates 230 00ı-280 00ı east longitudes and 330 00ı-360 40ı north latitudes was tried to be investigated with free-air gravity and magnetic anomalies. There is a reciprocal relationship between the anomalies for determining crustal thicknesses. Therefore this approach can give general information about relative crustal thicknesses. The crustal thickness are thicker in the south of the Island of Crete compared with its north and accordingly the crustal thickness get relatively thinner toward the inward of the Aegean Sea observed from the both gravity and magnetic anomalies.
Abstract (Original Language): 
Girit yayı bölgesi Doğu Akdeniz’de aktif dalma-batma olgusunun devam ettiği Afrika ve Ege levhalarının etkileştiği bir bölgedir. Bu bağlamda Girit yayı Doğu Akdeniz tektoniğinin en karmaşık alanıdır. Bu yapıyı açıklamak için 230 00ı-280 00ı doğu boylamları ve 330 00ı-360 40ı kuzey enlemleri arasında kalan bölgenin serbest hava gravite ve manyetik anomalilerinden kabuk yapısı araştırılmıştır. Bu anomalilerin değerleri arasında kabuk kalınlıkları belirlenmesinde ters bir orantı mevcuttur. Dolayısıyla bu yaklaşım göreceli kabuk kalınlıkları hakkında genel bilgileri vermektedir. Girit adasının güney kısmında kabuk kalınlığı kuzeydekine göre daha fazla olduğu ve Ege Denizi içlerinde kabuk kalınlığının adanın güneyine göre daha ince olduğu hem gravite hem de manyetik anomalilerin ortak değerlendirilmesi ile ortaya konmuştur. Sonuç olarak bu uygulama özellikle göreceli kabuksal kalınlık değişiminin ilksel alan değerlendirmelerinde yardımcı olacaktır.
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