2026 AIRBORNE
GEOPHYSICAL SURVEY.

The helicopter-borne MobileMT electromagnetic and magnetic survey over the Ajax block for Korestar Exploration Inc. was successfully completed, covering 230 line-km across 19 km². All planned lines were acquired and validated through field and office quality control. The survey produced high-quality broadband electromagnetic, VLF, and magnetic data, providing consistent coverage and reliable inversion results.

The main digital products in the result of the survey include databases, voxel, sections, depth slices, grids, geotiffs, and maps of resistivity, apparent conductivity, VLF amplitudes, and magnetic products. All inputs referenced above are provided in the final deliverables for immediate use in GIS/Geosoft workflows. All pictures in the report are presented as examples, the full set of digital data follow the report in corresponding files and archives.

The main geophysical survey goals at Ajax Block achieved:

• Successful delineation of the principal conductive and resistive geophysical domains within the Ajax survey area through the integration of MobileMT resistivity, apparent conductivity, magnetic, and VLF datasets. The survey improved the understanding of lithological variability, intrusive contacts, and possible alteration-related geoelectrical contrasts associated with the local volcanic-sedimentary and intrusive rock packages.
• Integration of apparent conductivity, resistivity inversion, and magnetic data identified multiple conductivity gradients, resistivity contrasts, and structurally complex zones that may reflect lithological contacts, faulting, hydrothermal alteration, and sulphide-bearing geological units. Several of these features occur within areas of historical exploration activity and provide valuable constraints for follow-up geological interpretation and target evaluation.
• The 2.5D Mare2DEM inversion results and the derived 3D resistivity voxel model improved the understanding of the geometry and depth extent of subsurface resistivity features within the surveyed area. While the survey coverage is limited and does not permit confident interpretation of property-scale structural trends, the results successfully highlighted several local areas of interest characterized by significant resistivity contrasts and structural complexity that warrant further investigation.

Overall, the survey successfully achieved its objective of providing high-resolution geophysical data to support exploration targeting within the survey block. The dataset highlights multiple anomalies that warrant further investigation, but additional work is required to assess their potential association with alteration zones or mineralization.