Images

Frame from a short video is of a post laser ablation crater using a nanosecond 193nm laser ablation system of a glass slide using a 210 micron spot diameter and 250 shots.  It shows a flat bottom crater indicative of a homogenized laser beam, though the measured diameter of the crater appears to be 25 microns smaller the diameter set.  The 3D crater image

This infographic introduces an approach that could subsequently be used to prioritize environmental research for the full range of critical elements.

Pie chart showing relative amounts of copper produced by leading copper producing states in the U.S. in 2019 (derived from data in Flanagan, D.M., 2019, Copper, in Metals and minerals: U.S. Geological Survey Minerals Yearbook 2019, v. 1, p. 20.1-20.30.

Global map showing locations of porphyry copper deposits from John, D.A., Ayuso, R.A., Barton, M.D., Blakely, R.J., Bodnar, R.J., Dilles, J.H., Gray, Floyd, Graybeal, F.T., Mars, J.C., McPhee, D.K., Seal, R.R., Taylor, R.D., and Vikre, P.G., 2010, Porphyry copper deposit model, chap. B of Mineral deposit models for resource assessment: U.S.

Photograph of Ray Copper Mine, Arizona, taken by USGS Emeritus Mark Coker, September 1, 2007. Revised for USGS Webpage carousel for brightness, sharpness, contrast, color saturation, and cropping.

Map showing locations of copper producing mines in the Lower Colorado River Basin, produced by Eric Anderson of the Geology, Geophysics, and Geochemistry Science Center on August 19, 2024.

Pie chart showing copper production in leading copper producing U.S. states in 2020 by Eric Anderson of the Geology, Geophysics, and Geochemistry Science Center, August 2024

Table of annual water use in acre-feet per year by major copper mines in Arizona from 2004-2008 published by Singh (2010)

Screenshot of Colorado Legacy Mine Lands Watershed Delineation and Scoring Tool (WaDeS) showing Cadmium (Cd) metal concentration figure in samples sorted by rank in relation to chronic and acute toxicity values. Samples are grouped by concentration scores, displayed on the right axis.

Screenshot of Colorado Legacy Mine Lands Watershed Delineation and Scoring Tool (WaDeS) showing individual location information popup window. For more information, see https://geonarrative.usgs.gov/colmlwades/.

Screenshot of USGS web application Colorado Legacy Mine Lands Watershed Delineation and Scoring Tool (WaDeS) landing page, available at https://geonarrative.usgs.gov/colmlwades/.

Photograph of the Colorado River in the Grand Canyon, Arizona, USA. Photo taken on September 8, 2023.

USGS scientists performing a step-injection aquifer test while drilling a bedrock borehole at the Perigo Mine site, Colorado during September 2023.

USGS scientists sampling a streambank well in the upper East Mancos watershed, Colorado in August, 2023.

The historical Berkeley Pit in Butte, Montana was developed during open-pit mining of polymetallic veins that overlie a porphyry stockwork vein deposit at depth. The veins are hosted in the Butte granite, one of many granitic phases of the Boulder batholith. View is to the north-northeast.

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the US

Screenshot of the USGS Glacier Dashboard, an interactive map and data viewer of available datasets on glacier outlines, ice thickness, ice velocity, and glacier surface elevation change to assess the vulnerability of Alaskan glaciers.

Screenshot of the Invasive Species Habitat Tool (INHABIT) web application to provide information and documentation on the potential distribution of invasive vegetation species in the contiguous United States.

Screenshot of EcoSHEDS home page, a USGS web application. EcoSHEDS is a collection of Spatial Hydro-Ecological Data Systems (SHEDS) designed to improve our understanding of stream ecosystems.

Prospect- and Mine-Related Features from U.S. Geological Survey 7.5- and 15-Minute Topographic Quadrangle Maps of the US

This map shows the airborne geophysical survey area and planned flight paths across the Illinois River Basin in Illinois and northwest Indiana. Surveys will not occur directly above populated areas. Planned flight lines and survey progress can be found online. 

(USGS map)