Geophysics
Geophysics
Filter Total Items: 31
Geophysical Research and Development
The Geophysical Research and Development Project supported the development of new and existing geophysical techniques for addressing critical geological problems. Research conducted under this project included development of needed geophysical methods and software, development of new geophysical instrumentation, and applications of geophysical techniques to frontier areas of geology.
Update of North American Airborne Radiometric Survey Data Using Advanced Statistical Techniques and Parallel Computing
The purpose of this project is to update the current gridded products created from the North American airborne gamma ray spectrometry data using new statistical techniques to analyze spatial data and to create higher quality national airborne radiometric grids.
Critical Mineral Resources in Heavy Mineral Sands of the U.S. Atlantic Coastal Plain
In many parts of the southeastern U.S., dark-colored sands can be seen at beaches or beneath soil. These sands contain titanium, zirconium, and rare earth elements, which are considered critical mineral resources. Such sands are present in areas from the coast to a hundred miles or more inland beneath soil within the Atlantic Coastal Plain Province. In some locales they are concentrated enough to...
Geophysical Infrastructure Studies: Earthen Dams and Abandoned Mine Lands
Geophysical Infrastructure Studies is comprised of a series of applied research projects focused on studying site-specific problems at earthen dams and abandoned mine lands. An appropriate suite of geophysical methods are chosen for each project and its particular goals and geologic environment. These projects are funded by the federal agencies in charge of the risk mitigation, assessment, or...
ROSETTA-Ice — Ross Ice Shelf, Antarctica
ROSETTA-Ice is a large, NSF-funded, multi-disciplinary and multi-institutional project with several major goals focused on the full ice shelf system of the Ross Ice Shelf that include the ice, underlying seafloor bathymetry, and ocean interaction. Methods include the first comprehensive LC-130-based airborne geophysical survey of the Ross Ice Shelf to measure ice thickness and accumulation (ice...
Geophysical mapping of produced water in near-surface environments
This task within the Oil and Gas Waters Project focuses on the development of oil and gas resources results in substantial volumes of produced water. Particularly when produced from deep geologic formations, these waters can exhibit elevated salinity in comparison to shallow groundwater at the same location. Knowing the spatial and temporal occurrence of high salinity produced water in groundwater...
Geophysical Infrastructure Study: Success Dam
A study site of the Geophysical Infrastructure Studies: Earthen Dams and Abandoned Mine Lands project.
Iron Oxide-Copper-Cobalt-Gold-Rare Earth Element Deposits of Southeast Missouri—From the Ore Deposit Scale to a Global Deposit Model
The project main objectives are to: 1) geologically, characterize the setting and origin of the iron-copper-cobalt-gold-rare earth element deposits, and advance the knowledge of rare earth element and Co potential within iron oxide-copper-gold (IOCG) deposits of southeast Missouri, and 2) geophysically delineate and characterize the subsurface Precambrian geology using existing ground and new...
Mineville, Eastern Adirondacks – Geophysical and Geologic Studies
The USGS is using a set of advanced imaging and analysis tools to study the rocks within the eastern Adirondacks of upstate New York. The goal of these studies is to gain a better understanding of the geology and mineral resources in the area.
Tellurium in Igneous-related Epithermal Precious Metal Deposits in Colorado and New Mexico
The project aims to improve our understanding of the causes of tellurium enrichment in epithermal precious metal deposits, and strengthen our ability to assess the Nation's tellurium deposits. Tellurium is used in solar panel technologies and is considered a critical mineral. Epithermal deposits of this type represent a prospective future source of tellurium.
Continental Scale Geophysics — Integrated Approaches to Delineate Prospective Environments for Critical Metals
Regional geophysical data that are available over continental scales such as magnetic, gravity, and magnetotelluric data can provide a foundation towards identifying and understanding the footprints and deep plumbing systems underlying these important ore systems. Our project will use continental-scale geophysical data to map the locations of deep crustal and mantle structures that may act as...
Geophysical Infrastructure Study: Jim Woodruff Lock and Dam
A study site of the Geophysical Infrastructure Studies: Earthen Dams and Abandoned Mine Lands project.