Airborne Geophysical Survey of the Great Gull Lake Area, Newfoundland, Parts of NTS Map Areas 2D/03, 05, 06, 11 and 12
G.J. Kilfoil
St. John’s, Newfoundland, May, 2023
Open File 002D/0956 comprises the results from a recent high-resolution airborne magnetic and radiometric survey of the Great Gull Lake area, Newfoundland. The survey covers parts of NTS map areas 2D/03, 05, 06, 11 and 12. The release consists of 12 maps at a scale of 1:100 000. Results are presented as 4 magnetic and 8 radiometric maps in pdf format.
Magnetic Maps
- Map 2023-02 Residual Magnetic Intensity (22 MB)
- Map 2023-03 First Vertical Derivative of the Magnetic Field (21 MB)
- Map 2023-04 Analytical Signal of the Magnetic Field (21 MB)
- Map 2023-05 Tilt Derivative of the Magnetic Field (23 MB)
Radiometric Maps
- Map 2023-06 Percent Potassium (21 MB)
- Map 2023-07 Equivalent Thorium (22 MB)
- Map 2023-08 Equivalent Uranium (22 MB)
- Map 2023-09 Ratio of Equivalent Thorium to Percent Potassium (22 MB)
- Map 2023-10 Ratio of Equivalent Uranium to Percent Potassium (21 MB)
- Map 2023-11 Ratio of Equivalent Uranium to Equivalent Thorium (21 MB)
- Map 2023-12 Natural Air Absorbed Dose Rate (21 MB)
- Map 2023-13 Ternary Radioelement Image (22 MB)
Additional data will be available from the Geological Survey Division’s online Geoscience Atlas: Metadata Link
- Airborne survey profile data
- Interpolated grids
- GIS layers and map images
Adobe® Acrobat® Reader software can be used for viewing PDF documents. Download Acrobat® Reader for free.