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Assessing Mineral Resources

The Mineral Resources Program is the Nation’s primary provider of impartial estimates of known and undiscovered mineral resources. We study the full life cycle of mineral commodities to inform decisions about where and how to develop mineral resources. 

We are the Nation's primary source for assessments of domestic and global mineral resources. 

Mineral resource assessments estimate the location, quantity and quality of known and undiscovered mineral resources. Decision-makers rely on mineral assessments to understand how much mineral resource might be available domestically versus globally, where future mineral development could take place, and how that mineral development could impact other natural resources. 

Our mineral assessments inform trade strategies, sustainable resource management and the investment of billions of dollars. 

 

How do we estimate undiscovered mineral resources? 

Mineral resource assessments are built on foundational research; by studying the geologic processes that result in known mineral deposits, we can better predict where undiscovered resources might be. By combining this research with high-quality geophysical, geochemical and geologic data, we identify locations where the correct combination of geologic processes may have occurred to produce a mineral deposit. 

We continuously improve our mineral assessment process by doing research to better understand key deposit-forming geologic processes. We also collect high-resolution geophysical, geochemical and geologic data to better identify locations where these processes may have resulted in mineral deposits. We are also exploring ways of leveraging advances in machine learning to speed up mineral assessments.

 

The United States currently lacks the data to fully understand the Nation’s mineral resources and address its changing mineral needs. We are working to change that. 

Compared to other developed nations, the United States is undermapped; we lack high-quality data needed to fully understand the mineral resource potential of our Nation. Through the Earth Mapping Resources Initiative (Earth MRI), we are modernizing the Nation’s mapping of geology and mineral resources. Earth MRI partners with State geological surveys, Federal agencies and industry to collect high-quality geophysical, geochemical and geologic data across the country. 

These foundational data will help to identify critical and other mineral resources below the ground and in mine wastes, but also have broader applications including providing crucial insights into energy and groundwater resources and natural hazards. 

 

We support holistic decision-making by taking a full life cycle and multi-resource approach. 
Colored pencil illustration of a spiral showing the stages of mineral production lifecycle

We incorporate the full life cycle of mineral resources, including the impacts of mineral development on other resources, into our research. This complements and informs our mineral resource assessments, ultimately supporting holistic decision-making. 

Some examples of this include providing information about where potential mineral resources overlap with other resources such as wildlife habitat, studying how mine wastes interact with water resources, and exploring the potential for recovering minerals from modern-day and legacy mine wastes.

Our research on the distribution and characteristics of mine wastes across the Nation are particularly important for understanding the impacts and potential of mineral resources at all stages of development, increasing public safety, and informing future development. Our inventory, USMIN, is the authoritative source for the locations of the most important current and historical mines and mineral deposits in the U.S. We are also conducting mine waste mapping and geochemical sampling, including through Earth MRI. Our research extends to understanding the potential impacts and potential for recovery of minerals as byproducts of modern-day waste streams.