Grafton Resources Inc. has commenced an 80 line-kilometre mobile magnetotelluric heliborne survey at its Alicahue Gold-Copper Project in Valparaiso, Chile. The survey, conducted by Expert Geophysics Surveys Inc., will cover the entire project area in a single day, with interpreted results anticipated in March 2026.
MobileMT technology provides three-dimensional imaging of subsurface geologic structures, alteration halos, and contrasting lithologies. When combined with VLF-EM data for near-surface electromagnetic information, the integrated approach offers increased resolution of shallow features. According to the company, this methodology can identify deep-seated faults, lithological contacts, and structures controlling mineral systems from surface to depths of approximately 1 to 2 kilometers, depending on local geology conductivity.
Campbell Smyth, Chairman of Grafton Resources, stated that the Mobile MT data is expected to create a comprehensive three-dimensional image of the Alicahue Project area. The survey aims to trace the outline of a possible porphyry centre in the southeast concession and vector toward the origin of IOCG vein systems and potential feeder zones to gold and copper vein mineralization mapped in the region. MobileMT is particularly effective at identifying electrically conductive sulphides potentially linked to mineralized porphyry intrusive centres, as well as resistive bodies representative of intrusions.
For business and technology leaders, this development represents the application of cutting-edge geophysical technology to mineral exploration. The rapid data collection capability—covering the entire project in one day—demonstrates how advanced technologies are accelerating exploration timelines and reducing operational costs. The depth penetration of 1-2 kilometers represents significant advancement in subsurface imaging capabilities, potentially revealing mineral systems that traditional methods might miss.
The implications for the mining industry are substantial, as successful identification of porphyry centres and feeder zones could lead to more efficient targeting of drilling programs and potentially significant mineral discoveries. For investors and stakeholders, the March 2026 timeline for interpreted results provides a clear milestone for project evaluation. The company's filings and additional business information are available at https://www.sedarplus.ca.
This technological approach reflects broader trends in the resource sector toward data-driven exploration methods that minimize environmental impact while maximizing discovery potential. The heliborne nature of the survey reduces ground disturbance compared to traditional ground-based geophysical methods, aligning with increasing industry emphasis on responsible exploration practices. The original release can be viewed on https://www.newmediawire.com.
