• First Vertical Derivative of the Magnetic Field, aeromagnetic survey of the Dawson …
• Residual Total Magnetic Field, aeromagnetic survey of the Dawson area, NTS 115N/15 …
• First Vertical Derivative of the Magnetic Field, aeromagnetic survey of the Dawson …
• Residual Total Magnetic Field, aeromagnetic survey of the Dawson area, NTS 116B/4, …
• First Vertical Derivative of the Magnetic Field, aeromagnetic survey of the Dawson …