EXTRACTION OF LINEAMENTS FROM GRAVITY ANOMALY MAPS BY MEANS OF HOUGH TRANSFORM: APPLICATION TO CENTRAL ANATOLIA
ABSTRACT In this study, a method named as the Hough transform is used to extract lineaments, which may be difficult to recognize from the gravity anomaly map. Linear anomalies are important in the interpretation of gravity and magnetic data because they indicate some important structural features. The method is based on the two horizontal gradients of the input data Firstly, it is tested on synthetic examples and satisfactory results are obtained. Secondly, it is tested on gravity anomaly maps of the Tuz gölü (Salt lake) basin and surrounding area. Outputs of the Hough transform demonstrate that it can be used in the visual interpretation of gravity anomaly maps in order to detect some geological features such as major and minor faults.
Horizontal Derivative, Hough Transform, Gravity, Salt Lake, Lineaments,