The Modeling and comments on gravity anomaly of Çanakkale Region using Markov Random Field

OSMAN O., TUR H., ALBORA A. M.

EUROPEAN GEOPHYSICAL SOCIETY XXVI GENERAL ASSEMBLY, France, 1 - 04 April 2001, vol.3, pp.1-2

  • Publication Type: Conference Paper / Summary Text
  • Volume: 3
  • Country: France
  • Page Numbers: pp.1-2
  • Istanbul University Affiliated: Yes

Abstract

365000 years ago, Marmara Sea was a lake, thre occurred no channels and connections to Black Sea and Egean Sea.  After very high magnitude earthquakes reaching up to 9-10 magnitude, Marmara Sea was totally changed geographically.  As an example, Marmara mountain was turned to be an island.  Saros region was closed, Izmit Bay , Bousphorous and Canakkale channels were formed.  Thus this region is very important in the view of young aged faults.  In this study, we first obtained real sismic data from Military Scientific Ship of Marine Forces.  Then the gravity and magnetic anomalies are obtained from Turkish Petroluem Organisation (TPAO). We have evaluated these data using Markov Random. Field.  MRF is a stoachastic model where neighbourhood and quantisation levels are optimised simultaneously.  MRF needs no training.  Satisfactory results are found and matched to real data values.