Brian D Rodriguez


Brian is a Research Geophysicist in the Geology, Geophysics, and Geochemistry Science Center, Denver, Colorado. He has applied magnetotellurics to characterization of geology, ground-water, and geothermal resources, earthquake hazards mitigation, mineral resources, and oil & gas exploration. He has applied seismic, ground penetrating radar, magnetic, electromagnetic, and electrical geophysics to seepage, toxic waste studies, tunnel detection, landslide monitoring, and engineering projects for power plants, buildings, bridges, nuclear waste repositories, and trans-continental pipelines.


Brian's magnetotelluric studies at The Geysers geothermal area in northern California, the largest geothermal production facility in the world, completely redefined the nature of the heat sources in the region and provided a tectonic model for future exploration. He has also used magnetotellurics to reveal a previously unrecognized thick sedimentary complex - a potential new source of oil and gas in southern Washington. His research of regional crustal images has helped develop a comprehensive tectonic model to better predict the true seismic hazards potential and stress release in the U.S. Mid-continent Region and minimize losses. He has contributed to a new understanding of the structural dynamics of the San Andreas fault in the 1989 Loma Prieta epicentral region which has resulted in significant revision of previous geological models used for earthquake hazard mitigation studies. His research of regional magnetotelluric data across the Carlin trend has contributed a geophysical target model for exploring for Carlin-type structures in areas of surficial cover in the Basin and Range and other similar geologic provinces that will help improve gold endowment estimates and provide future mineral exploration targets. His electromagnetic research is characterizing limited ground water resources in Colorado and New Mexico, demonstrating the utility of electromagnetic methods for mapping hydrologically important clays, and providing constraints to ground water flow models that are critical to decision makers in water management agencies for planning and developing water supplies in the Rio Grande rift. His magnetotelluric studies at the Nevada National Security Site (Nevada Test Site) has constrained the extent of volcanic confining units for hydrostratigraphic framework models, and delineated highly fractured collapsed blocks near the southern margin of a caldera complex in an effort to more accurately predict radionuclide transport away from test areas.