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February 2, 2021

Mineral Commodity Summary February 2021

The 26th annual Mineral Commodity Summaries report from the U.S. Geological Survey National Minerals Information Center is the earliest comprehensive source of 2020 mineral production data for the world. It includes information in the domestic industry structure, government programs, tariffs, and five-year salient statistics on more than 88 mineral commodities that are

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A map of the world that shows which countries the United States relied on for mineral imports in 2020.
February 1, 2021

US Minerals Net Import Reliance in 2020

The United States continues to rely on foreign sources for some raw and processed mineral materials, including some critical minerals. This map shows the countries that supply mineral commodities for which the United States was more than 50% net import reliant in 2020. 

Image shows grass-covered rocks with rolling hills in the background
January 6, 2021

Tingmerkpuk Ridges

Jurassic rocks exposed in thurst-faulted structures near the southern limit of Western North Slope. In the subsurface farther north, these rocks may be reservoir rocks for natural gas.

Image shows an aerial view of rolling hills and rock formations
January 6, 2021

Western North Slope Foothills

The Kukpowruk River cuts through folded Cretaceous rocks in the central North Slope. These rocks were assessed by the USGS in 2017 and lie above the rocks assessed in the USGS 2021 Western North Slope assessment.

Image shows rocky ground with grasslands and a USGS scientist in the background
January 6, 2021

Western North Slope Foothills

Geologist hikes across folded Cretaceous rocks in the central North Slope. These rocks were assessed by the USGS in 2017 and lie above the rocks assessed in the USGS 2021 Western North Slope assessment.

December 31, 2020

USGS End of Year Accomplishments 2020

A 2020 year in review of the many accomplishments of the US Geological Survey. A year that began with seismic activity in Southwest Puerto Rico, to the first-ever public testing of USGS ShakeAlerts, USGS scientists and technicians helped to track storm data during the 2020 Atlantic Hurricane season. Mapping in high resolution the Nation's rivers and streams, to precise

Map
October 30, 2020

Flight area for Trans-Pecos aeromagnetic and radiometric survey

Map indicating flight area for Trans-Pecos aeromagnetic and radiometric survey. The survey area includes parts of El Paso and Hudspeth counties, Texas, and Otero County, New Mexico. Flights will begin in November 2020 and are expected to conclude in mid-January 2021. 

Image shows a rock core in a trough
October 19, 2020

Austin Chalk Core

Bedding features in the core from the USGS Gulf Coast #4 Bonham borehole, in the Eagle Ford Group mudstones from a depth of about 401 feet, Fannin County, Texas. The Eagle Ford Group lies underneath the Austin Chalk and serves as the source rock for much of the Austin Chalk's petroleum.

Image shows three men in safety equipment standing next to a drill rig
October 19, 2020

USGS Technicians Prepare to Take a Core of the Austin Chalk in Texas

USGS technicians at the USGS Gulf Coast #4 Bonham borehole in preparation for geophysical logging of the Austin Chalk Group and the Eagle Ford Group mudstones, Fannin County, Texas.

Image is an aerial shot showing grass-covered rolling hills with occasional exposed rock formations
October 11, 2020

Surprise Creek, Western North Slope of Alaska

Overview of folded Triassic, Jurassic, and Cretaceous rocks in southern part of Western North Slope.

Image shows a helicopter with four USGS scientists talking to each other next to it, with grasslands in the background
October 11, 2020

Tingmerkpuk Ridges

Geologists discuss the geology of Jurassic rocks in thurst-faulted structures near the southern limit of Western North Slope.

Silica Crucible and Glass Desiccator
October 11, 2020

Silica Crucible and Glass Desiccator

Geochemists use platinum, silica, and ceramic crucibles, shown here in a glass container called a desiccator.  Silica is used because it is resistant to extremely high temperatures and because it is chemically inert. Silicon, linked up with a pair of oxygen molecules as silicon dioxide, is known as silica.