Directory Contains Magnetic, Radiometric and EM data from the Gauldal - Soknedal area, Sør-Trøndelag county.

NGU Report 2015.053 describes acquisition, quality, processing and presentation of the data.

Magnetic data are presented as:
	Total magnetic field (Trondelag_MAG_Tot)
	Magnetic Vertical Gradient (Trondelag_MAG_VG)
	Magnetic Horizontal Derivative (Trondelag_Mag_TD)
	Magnetic Tilt Derivative (Trondelag_MAG_TD)
	Geosoft XYZ-file with x and Y coordinates, instrument height, altitude above sea level, IGRF value  and magnetic anomaly.

Radiometric data are presented as:
	Radiometric Ternary Map  (Trondelag_RAD_Ternary)
	Radiometric Total Count (Trondelag_RAD_TotalCount)
	Potassium ground concentration in % (Trondelag_RAD_Potassium)
	Uranium ground concentaration in ppm (Trondelag_RAD_Uranium)
	Thorium ground concentration in ppm (Trondelag_RAD_Thorium)
	Geosoft XYZ-file of X and Y coordinates, instrument height, Uranium (ppm), Thorium (ppm) and 
		Potassium (%) ground concentrations as well as Total Counts (TC).

ElectroMagnetic data are presented as Calculated Apparent Resistivity 
from half space model, In phase and Quadrature Components:
	880 Hz Coplanar (Trondelag_EM_Res880)
	980 Hz Coaxial  (Trondelag_EM_Res980)
	6600 Hz Coplanar  (Trondelag_EM_Res6600)
	7001 Hz Coaxial  (Trondelag_EM_Res7000)
	
	Geosoft XYZ-file with X and Y coordinates, Instrument height, In phase and quadrature readings and 
		apparent resistivity for all frequencies. 
		Note: No data for EM 34kHz due to instrument problems.

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