Stanford Geothermal WorkshopFebruary 9-11, 2026

The INovative Geothermal Exploration through Novel Investigations Of Undiscovered Systems (INGENIOUS) project is a United States Department of Energy-funded multi-year project which seeks to identify and characterize blind geothermal systems in the Great Basin region. Geothermal systems in this region are predominantly fault-controlled geothermal plays and most reside in favorable structural settings (e.g. fault intersections, stepovers, etc.). Lund North, UT is the fourth detailed study site selected for the INGENIOUS project and is located along a complex fault-bend and stepover zone of the Lund fault in the southernmost Wah Wah Mountains of Iron County, Utah. Here we present new 2D and 3D modeling results derived from a broad range of geophysical data collected at the Lund North site including airborne magnetic data, ground-based gravity and magnetotelluric (MT) data, paleomagnetic (remanence) directional data, and magnetic susceptibility and density data obtained from hand samples collected in the field. Together these were used in conjunction with existing 1:50,000 scale geologic maps and a 2D seismic line to construct six 2D forward geophysical models across the study region which constrain the subsurface geology and inform potential drilling targets. These six forward models serve as the primary inputs for a 3D geologic model of the Lund North site which further improves our understanding of the subsurface and highlights the structural complexity of the site as well as the relationship between mapped and inferred structures and the 3D resistivity model derived from MT data. Surfaces from the 3D geologic model will be used as constraints for 3D inversion of the gravity and magnetic data collected at Lund North to improve model consistency with the observations and ultimately to inform selection of drilling targets for thermal gradient wells.

Topic: Modeling