Magnetic anomali map interpolated from aeromagnetic low-flight data (cell size 50 m x 50 m) in grayscale representation. The data is based on low-flight measurements carried out by GTK throughout Finland in 1973-2007. The flight altitude has been approximately 40 metres, the distance between the flight lines is 200 metres, the flight lines run from north to south or east to west based on the main geological orientation, and the distance between the measurement points on the flight lines is 10-50 m.
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