Geosoft grid files NAD27 UTM14N projection 20m cell size

Files

mag_rtp.grd 			total field magnetics, IGRF removed, reduced to pole
mag_rtp.grd.gi                  geosoft header 
mag_rtp_resid.grd               residual total magnetic field after removing second degree trend
mag_rtp_resid.grd.gi            geosoft header
mag_rtp_resid_s.grd             shaded relief grid
mag_rtp_resid_s.grd.gi 		geosoft header

SUBDirectory ESRI
same files as main directory converted to ESRI format