Minerals

Filter Total Items: 81
Date published: October 18, 2018
Status: Active

Alaska Science Center Previous Seminars

The USGS Alaska Science Center has a monthly seminar series that runs from October through May.  This series highlights the multiple research programs that are taking place across all disciplines at the center.

Listed below are previous seminars given.

Contacts: Yvette Gillies
Date published: October 16, 2018
Status: Active

Geophysical studies into the architecture of large igneous systems hosting magmatic ore deposits- Carol Finn

Exploring for the critical platinum-group elements (PGEs) relies upon understanding the geophysical signature of the entire magmatic system in which they form, from bottom to top. The USGS is applying a range of geophysical techniques to investigate the internal architecture of layered mafic intrusions.

Date published: October 9, 2018
Status: Active

Ask-A-Geologist

Do you have a question about volcanoes, earthquakes, mountains, rocks, maps, ground water, lakes, rivers, beaches, or oceans?

Email your earth science question to:

ask-a-geologist@usgs.gov

Date published: October 1, 2018
Status: Active

Estuarine Processes, Hazards, and Ecosystems

Estuarine processes, hazards, and ecosystems describes several interdisciplinary projects that aim to quantify and understand estuarine processes through observations and numerical modeling. Both the spatial and temporal scales of these mechanisms are important, and therefore require modern instrumentation and state-of-the-art hydrodynamic models. These projects are led from the U.S....

Date published: September 27, 2018
Status: Active

Piedmont and Blue Ridge Project

The Piedmont and Blue Ridge Project is a geologic mapping project supported by the USGS National Cooperative Geologic Mapping Program. The Piedmont Blue Ridge Project aims to understand the geologic framework and tectonic evolution of terranes and basins in the Appalachian Piedmont and Blue Ridge, and their significance for water, mineral and energy resources, natural hazards, and engineering/...

Date published: September 11, 2018
Status: Active

Coastal Basement Geology of the Southeastern U.S. Project

Starting October 2018, this pilot project initiated the first year of geologic mapping of coastal-plain basement rocks in South Carolina and Georgia to be completed in a second year, providing a prototype for cooperative basement geologic mapping throughout the Atlantic and Gulf Coastal Plains. Basement terranes and rift basins concealed beneath sediments of the southeastern U.S. coastal plain...

Date published: August 1, 2018
Status: Active

Processes Controlling Groundwater Quality in Uranium In-Situ Recovery (ISR) Mining

The project's primary objective is to evaluate the reducing capacity of an aquifer down gradient of a roll-front ore zone to assess the mobility of uranium and other associated elements (e.g. arsenic, selenium, molybdenum, and sulfur). Assessing the reducing capacity of the aquifer will require characterization of the mineralogy, geochemistry, and microbiology and their variation across the...

Contacts: Jean M Morrison
Date published: August 1, 2018
Status: Active

Mineral Resource Online Data Catalog

Our project makes the digital spatial data produced by the Mineral Resources Program available via a web portal so that users of our data can easily access spatial data for solving scientific and technical problems: https://mrdata.usgs.gov/.

Date published: August 1, 2018
Status: Active

Piedmont Geology along the southeastern Fall Zone, Virginia and North Carolina – A Cooperative FEDMAP-STATEMAP-EDMAP Project

This task within the USGS NCGMP Piedmont-Blue Ridge Project aims to fill the void in geologic map coverage along the Fall Zone in southeastern Virginia and northeastern North Carolina, and forge strong cooperative ties within the NCGMP by combining resources across all three Program components by supporting DMME and NCGS STATEMAP and UNC–W EDMAP components with targeted geologic mapping and...

Contacts: Mark Carter
Date published: August 1, 2018
Status: Active

Magmas to Metals: Melt Inclusion Insights into the Formation of Critical Element-Bearing Ore Deposits

This project applies innovative melt inclusion and mineralogical techniques to characterize several distinctive magma types occurring together with prodigious, critical rare earth elements (REE) and gold-(antimony-tellurium) ore deposits within the U.S. We will characterize the pre-eruptive/pre-emplacement magmatic conditions in several districts. Our goal is to determine the role of magmatism...

Date published: July 31, 2018
Status: Active

Emerging Geoenvironmental Issues Related to Proposed Mining in the Lake Superior Region

We are studying environmental issues related to mining, and potential mining, in the Great Lakes region, continuing the study of characterizing baseline geochemistry of several watersheds in Minnesota and Michigan, examining the potential for aquatic toxicity from metals, and examining the acid-neutralizing and acid-generating potentials of mine waste, and the environmental, and possible human...

Date published: July 17, 2018
Status: Active

Trace Elements in Quartz, Rutile, and Zircon

Quartz is an ubiquitous mineral that forms in all geologic environments including diagenetic, metamorphic, plutonic, and volcanic settings. Quartz is relatively unreactive and is likely to preserve its geologic history. Trace elements in quartz offer clues to formation temperatures and pressures, fluid chemistry, and tectonic setting. Rutile and zircon are refractory minerals also found in a...