Mineral Resources Program

Deposit Models

Filter Total Items: 25
Date published: September 14, 2020
Status: Active

USMIN Mineral Deposit Database

Our objective is to develop a national-scale, geospatial database that is the authoritative source of the most important mines, mineral deposits, and mineral districts of the United States.

Date published: August 21, 2020
Status: Active

Isotope and Chemical Methods for Mineral and Geoenvironmental Assessments and Support of USGS Science Strategy

This Project integrates several geochemical tools—stable isotope geochemistry, noble gas geochemistry, active gas geochemistry, single fluid inclusion chemistry, and fluid inclusion solute chemistry—in studies of the processes that form mineral deposits and the processes that disrupt them during mining or natural weathering. Research is directed toward fundamental scientific questions or, in...

Date published: April 30, 2020
Status: Active

A Shallow to Deep View Inside the Hydrothermally Altered and Mineralized Silverton Caldera Complex: New Geologic Insights Gained From Modern Geophysical Interpretations

The Silverton caldera complex in southwest Colorado hosts base and precious metals that have been mined since the late 1800s. Extensive mine workings, excellent bedrock exposures, and deeply incised drainages make this area a natural laboratory ideally suited for furthering our understanding of the mineral systems in a volcanic environment. In addition, state-of-the-art geophysical...

Date published: September 23, 2019
Status: Active

Critical Mineral Recovery Potential from Tailings and Other Mine Waste Streams

The primary objectives of this one-year scoping project are to determine the feasibility of extracting byproduct mineral commodities, such as critical minerals, from mine tailings. We plan to analyze the existing data and reports from an active mine site on the composition of their mill tailings pile, and collect preliminary reconnaissance samples to identify appropriate analytical techniques...

Contacts: Robert R Seal
Date published: September 23, 2019
Status: Active

Research Mineralogy - X-ray Diffraction Lab

The primary goal of this project is to ensure the availability of state-of-the-art mineralogical analyses and, when needed, development of new analytical methods that can be applied to topical studies in Energy and Minerals Mission Area, as well as the other mission areas.

The project includes mineralogy by X-ray diffraction (XRD), qualitative and semi-quantitative x-ray fluorescence...

Date published: July 8, 2019
Status: Active

Lithium from Source to Sink: Genesis and Evolution of Li Brines and Clays

The purpose of this project is to trace the lithium (Li) geochemical cycle in the Great Basin, with an emphasis on the pathways that lead to the development of lithium clay and brine resources.

Date published: July 8, 2019
Status: Active

Mineral Resource Assessment Training

The USGS Mineral Resources Program conducts mineral resource assessments and is training USGS scientists in how to conduct these assessments for future work. As a practical exercise, the scientists will conduct an assessment for tungsten in the U.S.

Date published: July 2, 2019
Status: Active

Volcanic-related Beryllium Deposits of the US: Geologic Setting, Genesis, and the Potential for Post-Extraction Recovery of By-Product Critical Minerals

Project objectives are: 1) to fully establish a comprehensive and robust geologic and geochemical framework for the occurrence of volcanic-related beryllium (Be) deposits; 2) further our understanding of the fundamental ore processes that lead to formation of volcanogenic beryllium (Be)-boron (B)-lithium (Li)-phosphorus (P) group deposits, by investigating processes favorable for enhanced...

Contacts: Nora Foley
Date published: June 24, 2019
Status: Active

Systems Approach to Critical Minerals Inventory, Research, and Assessment

This project supports the Earth Mapping Resources Initiative (EarthMRI) by developing a mineral systems approach for defining focus areas. This project is investigating domestic sources of critical minerals in three sequential stages: inventory, research, and assessment.

1) Inventory the abundance of critical minerals in ore, minerals, and processed materials from major deposits in each...

Date published: August 9, 2018
Status: Completed

USGS Response to Possible Metals Contamination from Legacy Mines in the Patagonia Mountains Region and Adjacent Areas, Southeast Arizona and a Template for Future Mineral Environmental Emergency Response

USGS is conducting sampling, monitoring, and modeling in the Patagonia Mountains and nearby regions in Arizona to identify contaminant risk potential of legacy and proposed mine sites and to develop classification criteria for predicting vulnerabilities and targeted sources and sinks of metal contaminants.

Contacts: Floyd Gray
Date published: August 3, 2018
Status: Active

Synthesis of the Tectonic, Magmatic, and Metallogenic Evolution of the Midcontinent Rift System

The overall project objective is to develop a comprehensive synthesis of the tectonic, magmatic, and metallogenic evolution of the Midcontinent Rift System (MRS) through time by integrating geophysical, magmatic, and geochemical data and to create 3-D models of the rift over its evolution.

Date published: August 3, 2018
Status: Active

Rare Earth Element Accumulation Processes Resulting in High-Value Metal Enrichments in Regolith

The Southeastern United States contains numerous granites of the type that contain high concentrations of rare earth elements. We are conducting studies of these granites to advance rare earth element (REE) resource identification and assessment by resulting in an improved understanding of the fundamental source rock types, modes and occurrences, and geochemical parameters necessary for the...

Contacts: Nora Foley