Directory Contains Magnetic, Radiometric and EM data from the Ballangen area, Nordland county.

NGU Report 2016.012 describes acquisition, quality, processing and presentation of the data.

Magnetic data are presented as:
	Total Magnetic field (Ballangen_Mag_Anom)
	Magnetic Vertical GRadient (Ballangen_Mag_VG)
	Magnetic Horizontal GRadient (Ballangen_Mag_HG)
	Magnetic Tilt Derivative (Ballangen_Mag_TD)
	Geosoft XYZ-file with instrument height, altitude above sea level, IGRF value  and Magnetic anomaly.

Radiometric data are presented as:
	Radiometric Ternary Map  (Ballangen_Rad_Ternary)
	Radiometric Total Count (Ballangen_Rad_TotalCount)
	Potassium ground concentration in % (Ballangen_Rad_Potassium)
	Uranium ground concentaration in ppm (Ballangen_Rad_Uranium)
	Thorium ground concentration in ppm (Ballangen_Rad_Thorium)
	Geosoft XYZ-file of instrument height, Uranium (ppm), Thorium (ppm) and Potassium (%) ground concentrations.

ElectroMagnetic data are presented as Calculated Apparent Resistivity 
from half space model, In phase and Quadrature Components:
	Frequency D: 880 Hz Coplanar (Ballangen_EM_Res880)
	Frequency C: 980 Hz Coaxial  (Ballangen_EM_Res980)
	Frequency B: 6600 Hz Coplanar  (Ballangen_EM_Res6600)
	Frequency A: 7001 Hz Coaxial  (Ballangen_EM_Res7000)
	
	Gesoft XYZ-file with Instrument height, In phase and quadrature readings and aparent resistivity for all frequencies. 
	Note: 	AI_L_F means Frequency A (7001 Hz Coax) In phase component.
		AQ_L_F means Frequency A (7001 Hz Coax) Out of phase component (Quadrature).
		AIQ_Res means Apparent resistivity calculated from In phase and Out of Phase component.	
	

For more information, contact: jan.ronning@ngu.no