Airborne Geophysical Survey of the Terrenceville Area, Newfoundland (Parts of NTS Map Areas 1M/07, 1M/08, 1M/09, 1M/10, 1M/11, 1M/14, 1M/15, 1M/16, 2D/01 and 2D/02)

G.J. Kilfoil

St. John’s, Newfoundland, November, 2024

Open File NFLD/3443 comprises results from a recent high-resolution airborne magnetic, radiometric and VLF-EM survey of the Terrenceville area, Newfoundland.  Results are presented as 12 magnetic, 24 radiometric and 6 VLF-EM full-colour maps in pdf format.

Magnetic Maps

• Map 2024-73  Residual Total Magnetic Field (Sh1) (77 MB)
• Map 2024-74  Residual Total Magnetic Field (Sh2) (80 MB)
• Map 2024-75  Residual Total Magnetic Field (Sh3) (56 MB)

• Map 2024-76  First Vertical Derivative of Magnetic Field (Sh1) (72 MB)
• Map 2024-77  First Vertical Derivative of Magnetic Field (Sh2) (70 MB)
• Map 2024-78  First Vertical Derivative of Magnetic Field (Sh3) (52 MB)

• Map 2024-79  Analytic Signal of Magnetic Field (Sh1) (71 MB)
• Map 2024-80  Analytic Signal of Magnetic Field (Sh2) (69 MB)
• Map 2024-81  Analytic Signal of Magnetic Field (Sh3) (52 MB)

• Map 2024-82  Tilt Derivative of Magnetic Field (Sh1) (72 MB)
• Map 2024-83  Tilt Derivative of Magnetic Field (Sh2) (71 MB)
• Map 2024-84  Tilt Derivative of Magnetic Field (Sh3) (53 MB)

Radiometric Maps

• Map 2024-85  Potassium (Sh1)  (71 MB)
• Map 2024-86  Potassium (Sh2)  (67 MB)
• Map 2024-87  Potassium (Sh3)  (51 MB)

• Map 2024-88  Equivalent Thorium (Sh1) (71 MB)
• Map 2024-89  Equivalent Thorium (Sh2) (67 MB)
• Map 2024-90  Equivalent Thorium (Sh3) (51 MB)

• Map 2024-91  Equivalent Uranium (Sh1) (71 MB)
• Map 2024-92  Equivalent Uranium (Sh2) (67 MB)
• Map 2024-93  Equivalent Uranium (Sh3) (51 MB)

• Map 2024-94  Ratio, Equivalent Thorium to Potassium (Sh1) (71 MB)
• Map 2024-95  Ratio, Equivalent Thorium to Potassium (Sh2) (68 MB)
• Map 2024-96  Ratio, Equivalent Thorium to Potassium (Sh3) (52 MB)

• Map 2024-97  Ratio, Equivalent Uranium to Potassium (Sh1) (71 MB)
• Map 2024-98  Ratio, Equivalent Uranium to Potassium (Sh2) (69 MB)
• Map 2024-99  Ratio, Equivalent Uranium to Potassium (Sh3) (52 MB)

• Map 2024-100  Ratio, Equivalent Uranium to Equivalent Thorium (Sh1) (70 MB)
• Map 2024-101  Ratio, Equivalent Uranium to Equivalent Thorium (Sh2) (68 MB)
• Map 2024-102  Ratio, Equivalent Uranium to Equivalent Thorium (Sh3) (51 MB)

• Map 2024-103  Natural Air-Absorbed Dose Rate (Sh1) (71 MB)
• Map 2024-104  Natural Air-Absorbed Dose Rate (Sh2) (67 MB)
• Map 2024-105  Natural Air-Absorbed Dose Rate (Sh3) (51 MB)

• Map 2024-106  Ternary Image (K-eU-eTh) (Sh1) (70 MB)
• Map 2024-107  Ternary Image (K-eU-eTh) (Sh2) (63 MB)
• Map 2024-108  Ternary Image (K-eU-eTh) (Sh3) (50 MB)

VLF-EM Maps

• Map 2024-109  VLF-EM Amplitude (NAA – Cutler, Maine) (Sh1) (71 MB)
• Map 2024-110  VLF-EM Amplitude (NAA – Cutler, Maine) (Sh2) (68 MB)
• Map 2024-111  VLF-EM Amplitude (NAA – Cutler, Maine) (Sh3) (52 MB)

• Map 2024-112  VLF-EM Fraser Filtered Quadrature (NAA – Culter, Maine) (Sh1) (72 MB)
• Map 2024-113  VLF-EM Fraser Filtered Quadrature (NAA – Culter, Maine) (Sh2) (67 MB)
• Map 2024-114  VLF-EM Fraser Filtered Quadrature (NAA – Culter, Maine) (Sh3) (51 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