Electromagnetic Imaging Across Scales: From Sensors to Subsurface Systems

Climate change and the global energy transition increasingly require improved understanding of subsurface systems that control groundwater resources, critical minerals, and energy infrastructure. Electromagnetic (EM) geophysics provides a powerful means of imaging subsurface electrical properties across a wide range of spatial scales. This presentation focuses on EM methods applied at both regional and deposit scales. A regional-scale airborne EM study in California’s Central Valley demonstrates how basin-scale resistivity models advance groundwater characterization and sustainable management. In contrast, a deposit-scale example introduces a next-generation EM system designed to better characterize nickel sulphide deposits, highlighting how advances in sensors and interpretation can improve imaging of complex mineral systems.

Speaker: Seogi Kang, University of Manitoba

Room 350/372