Our project will develop new and innovative spectral methods and remote sensing tools for understanding how critical minerals are concentrated by weathering, regolith/soil formation, mining, runoff and ore processing. These tools will help us to use mineralogy derived from spectral measurements (lab, field, and remote sensing) to help delineate vectors towards recoverable resources and to identify environmental risks of mine wastes.
Science Issue and Relevance
Critical mineral resources and the impacts of mining them are often controlled, concentrated and modified by the surface weathering and runoff processes. Understanding the spatial distribution and scaling effects needed to detect minerals related to these processes are crucial for developing an outcrop scale understanding of elemental redistribution processes which concentrate critical and scarce mineral resources such as rare earth elements (REE) in regoliths. Characterization of these materials at the field and laboratory scale provides necessary ground truth for understanding how these scarce resources can be detected using remote sensing methods at the deposit scale (i.e. 1 to 10s of kilometers). These types of studies can also be applied to monitoring the environmental effects of extraction, remediation and reclamation.
Potential benefits of the project products will be: 1) the development of new methods for assessing and exploring for REEs both domestically and worldwide, which will both enhance land use decision making and national economic policy, and 2) the development of spectral mapping methods that can eventually be applied towards inventorying of environmental risks and prioritization of land management goals for sites on public lands throughout the western United States.
Methodology for Addressing the Issue
Project objectives are:
- Field and laboratory hyperspectral studies of samples of residual rare earth element deposits from deeply weathered plutonic rocks throughout the Southern Appalachians.
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Spectral characterization of soils, mine waste and other regolith materials for environmental risk, resource recovery, site characterization, and land management prioritization.
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Spectral analysis of soil and regolith material to provide a spectroscopic, mineralogical and geochemical framework for understanding how weathering and surficial runoff processes help to concentrate elements and minerals of critical importance to our economy. A pilot study will cover the state of California.
Return to Mineral Resources Program
Below are data or web applications associated with this project.
Visible and Near Infrared (VNIR) and Short Wavelength Infrared (SWIR) Spectra of Select Rock Cores and Waste Material from Nine Uranium Mine Sites in Karnes and Live Oak Counties, Texas
- Overview
Our project will develop new and innovative spectral methods and remote sensing tools for understanding how critical minerals are concentrated by weathering, regolith/soil formation, mining, runoff and ore processing. These tools will help us to use mineralogy derived from spectral measurements (lab, field, and remote sensing) to help delineate vectors towards recoverable resources and to identify environmental risks of mine wastes.
Science Issue and Relevance
Critical mineral resources and the impacts of mining them are often controlled, concentrated and modified by the surface weathering and runoff processes. Understanding the spatial distribution and scaling effects needed to detect minerals related to these processes are crucial for developing an outcrop scale understanding of elemental redistribution processes which concentrate critical and scarce mineral resources such as rare earth elements (REE) in regoliths. Characterization of these materials at the field and laboratory scale provides necessary ground truth for understanding how these scarce resources can be detected using remote sensing methods at the deposit scale (i.e. 1 to 10s of kilometers). These types of studies can also be applied to monitoring the environmental effects of extraction, remediation and reclamation.
Potential benefits of the project products will be: 1) the development of new methods for assessing and exploring for REEs both domestically and worldwide, which will both enhance land use decision making and national economic policy, and 2) the development of spectral mapping methods that can eventually be applied towards inventorying of environmental risks and prioritization of land management goals for sites on public lands throughout the western United States.
Methodology for Addressing the Issue
Project objectives are:
- Field and laboratory hyperspectral studies of samples of residual rare earth element deposits from deeply weathered plutonic rocks throughout the Southern Appalachians.
-
Spectral characterization of soils, mine waste and other regolith materials for environmental risk, resource recovery, site characterization, and land management prioritization.
-
Spectral analysis of soil and regolith material to provide a spectroscopic, mineralogical and geochemical framework for understanding how weathering and surficial runoff processes help to concentrate elements and minerals of critical importance to our economy. A pilot study will cover the state of California.
Return to Mineral Resources Program
- Data
Below are data or web applications associated with this project.
Visible and Near Infrared (VNIR) and Short Wavelength Infrared (SWIR) Spectra of Select Rock Cores and Waste Material from Nine Uranium Mine Sites in Karnes and Live Oak Counties, Texas
These data represent laboratory reflectance measurements conducted on a suite of sandstone, tuffaceous mudstone and claystone rocks and sediment, which are known host and source materials for roll front Uranium deposits mined throughout the South Texas Coastal Plains. Visible through Near Infrared through Shortwave Infrared (~0.4 - 2.5 microns) reflectance were measured using an artificial light s