The Naşa intrusion (Western Anatolia) and its tectonic implication: A joint analyses of gravity and earthquake catalog data

Yıl 2018, Cilt: 156 Sayı: 156, 247 - 258, 27.06.2018

C. Ertan Toker Emin U. Ulugergerli Ali Rıza Kılıç

https://doi.org/10.19111/bulletinofmre.410597

Cited By: 1

Öz

The gravity data gathered
in and around the Simav Graben in Western Anatolia were reprocessed and
reinterpreted by using the standard deviation fi lter and the Euler
deconvolution. The joint evaluation of results from the interpretation of
gravity data and seismological studies indicates the presence of new intrusive
structures in the vicinity of Simav. The intrusion is located in the eastern
margin of the graben and has a thickness of 12-15 km at 2.5-3 km depth below
the surface. Numerous earthquakes recorded in the eastern part of the graben
are associated with this intrusion. Besides, the multidimensional modelling
study of the gravity data allowed us to display the Simav Graben, the fold of
the Simav Fault, the intrusion named as Naşa, and the epicenters of earthquake
within the same tectonic frame. All tectonic structures were marked on the
three dimensional relief model.

Anahtar Kelimeler

Gravity, Earthquake, Simav, Graben, edge detection, Euler deconvolution.

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