Geophysics
Geophysics
GGGSC geophysicists acquire and analyze airborne, ground, and laboratory geophysical and hyperspectral data to understand the distribution of surface and subsurface materials, such as minerals, water, and vegetation, for application to geologic, rare earth mineral and energy resource, wildfire, hydrologic, and environmental health studies.
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USGS High Resolution Spectral Library
The USGS Spectral Library contains reflectance spectra, including samples of minerals, rocks, soils, physically constructed as well as mathematically computed mixtures, plants, vegetation communities, microorganisms, and man-made materials. The samples and spectra collected were assembled for the purpose of using spectral features for the remote detection of these and similar materials. The latest...
Geophysical Infrastructure Study: Jim Woodruff Lock and Dam
A study site of the Geophysical Infrastructure Studies: Earthen Dams and Abandoned Mine Lands project.
Multidisciplinary Studies to Image and Characterize the Mineral Resource Potential of the Midcontinent Rift, USA
This multidisciplinary study seeks to image and characterize the mineral resource potential of the Midcontinent Rift System. Combining various geophysical methods with detailed mapping and geochemical analyses will help to define the geographic extent of the Rift and clarify its geologic makeup and configuration.
Geophysical and Geochemical Approaches to Evaluating Rare Earth Element (REE) Potential in the Southeastern U.S.
Rare-earth elements (REE) are an essential component of numerous advanced technology applications including high efficiency batteries, emerging energy technologies, and key defense systems. The goal of this study was to assist in the evaluation of the distribution of rare earth element deposits in the southeastern U.S., with a focus on sediment-hosted resources.
National Geophysical Data Retrieval and Integration Project
This project helped to streamline the workflow from geophysical data acquisition to data distribution, and additionally provided user support for integration and interpretation of these complex data sets. There were four main objectives: 1) contracting geophysical surveys, 2) converting data from analog to digital format, 3) archiving, retrieving, and integrating geophysical data, and 4) outreach.
Alaska Geophysical Survey Interpretation
Available geophysical data for Alaska have not been fully exploited. Project objectives were to conduct systematic analysis of existing gravity, aeromagnetic and airborne electromagnetic data to map geologic trends, structural geologic and tectonic patterns, and identify key lithologies for direct integration with geologic framework and mineral potential studies.
Airborne Geophysics for Rare Earth Element Deposits (AGREED)
The USGS Airborne Geophysics for Rare Earth Element Deposits (AGREED) project coordinated with industry to use high resolution airborne geophysical data collected over some of the advanced rare earth element (REE) projects in the U.S. These data were analyzed, interpreted and modeled to generate an improved understanding of the geologic setting, framework, and ore genesis for REE deposits. In...
Integrated Methods Development Project
The Integrated Methods Development Project (IMDP) was an interdisciplinary project to develop tools and conduct research requiring integration of geologic, geophysical, geochemical, and remote-sensing expertise.
Environmental Studies of the World Trade Center Area After the September 11, 2001 Attack
USGS scientists conducted a remote sensing and mineralogical characterization study of lower Manhattan around the WTC after the September 11, 2001 attack.