USGS Partners With Nevada To Map Critical Mineral Potential In Nevada Using New Tech Approach
Government
The funding comes in part from an investment by the President’s Bipartisan Infrastructure Law in the USGS Mineral Resources Program’s Earth Mapping Resources Initiative (Earth MRI), which provides $320 million over five years through the USGS to advance scientific innovation and map critical minerals vital to the Nation’s supply chains, economy and national defense.
The work will modernize our understanding of the Nation’s fundamental geologic framework and improve knowledge of domestic mineral resources both in the ground and in mine waste, a key step in securing a reliable and sustainable supply of the critical minerals that power everything from household appliances and electronics to clean energy technologies like batteries and wind turbines.
The geophysical survey will provide images of the subsurface that will expand knowledge of geology underpinning the Basin and Range province of Nevada. These flights are a continuation of a project that began in 2022. The survey area hosts brines and evaporation-based mineral systems that might contain lithium resources, as well as rock formations that may contain significant amounts of copper, molybdenum and gold.
The data collected by the airborne geophysical surveys will allow resource managers to better understand the potential for natural resources like critical minerals and groundwater, as well as alerting decision-makers to potential geologic hazards like seismic faults.
The airborne surveys will include the collection of electromagnetic and magnetic data. Electromagnetic data image the electrical resistivity layers that reflect the variability in rocks and sediments, groundwater, and in some cases temperature, to depths of more than 1,000 feet underground. Magnetic data, which image the deepest rocks, can be used to identify ancient faults, volcanic rocks and other geologic features.
The new geophysical data will be processed to develop high-resolution cross-section models of the upper 1,000 to 2,000 ft of the subsurface.
The models are important for improving our understanding of critical mineral resource potential, groundwater aquifer structure and salinity, and geothermal resource potential.