Data

The United States Documented Orphaned Well Database (DOWDB) contains 130,121 unplugged oil and gas wells in 28 states. This release of the data is an update to, and supersedes, the initial version (Grove and Merrill, 2022). The definition of an orphaned oil or gas well varies across data sources; the database includes oil or gas wells where the state indicates that the well is an...

Gas emissions from coal waste piles can occur through degassing, biological decomposition, or low-temperature oxidation through atmospheric exposure. This study quantifies methane and carbon dioxide emissions of historic coal waste piles near Nanticoke Creek in Pennsylvania to: 1) measure if these piles are releasing gas emissions, 2) understand if previous surficial treatments of the...

This data release is a compilation of information from historically mined sites in the United States that are confirmed or inferred to have generated mafic to ultramafic mine waste. Waste rock and milled tailings from the mining of mafic to ultramafic ores are prospective surface-based feedstocks for CO₂ mineralization given their high specific surface area and CO₂-reactive mineralogy

This data release presents the results of broad ion beam (BIB) milling tests on organic-rich geologic samples by comparing the changes in vitrinite reflectance (Ro) pre- and post-milling. This work utilized two different BIB milling systems (single gun and dual gun) and evaluated changes in Ro using different ion milling voltages (2–8 keV), and sample temperature (cooling vs. standard...

This data release contains major ion geochemistry (B, Ba, Br, Cl, Ca, Fe, K, Li, Mg, Mn, Na, Si, SO₄ Sr), total dissolved solids, and specific gravity measurements for produced water samples collected from petroleum wells producing from the Smackover Formation in southwestern Alabama. Analyses were performed at the U.S. Geological Survey Brine Research Instrumentation and Experimental...

Coal and its combustion products (ash) are of interest as potential unconventional sources of critical minerals, particularly rare earth elements (REE). Vietnam has large coal reserves and employs coal-fired power plants to generate more electricity than any other energy source. Because there are limited data available on the REE content of coal and coal combustion products from Vietnam...

This data release contains metaproteomics data related to produced water samples collected from natural gas wells completed in the Antrim Shale (Michigan basin, MI). These data can be used to investigate microbial community organic matter degradation and methanogenesis. Results include thousands of proteins with a wide range of different functions including organic matter degradation

This data release includes pH, major ion geochemistry (B, Ba, Br, Cl, Ca, Fe, K, Li, Mg, Mn, Na, Si, SO4, Sr), and total dissolved solids data from produced water samples collected from petroleum wells in the Williston Basin, North Dakota. Major ion geochemistry and total dissolved solids were analyzed at the U.S. Geological Survey Brine Research Instrumentation and Experimental...

Developing resilient U.S. mineral supply chains requires data for identifying the vulnerabilities and bottlenecks for the mineral materials that are required for defense technologies, semiconductor manufacturing, agricultural production and advanced electronics. A U.S.-based mineral and metal production facility database is essential for national security and economic stability by...

Sediment hosted zinc (Zn) and lead (Pb) deposits are the most significant sources of zinc and lead ore globally. Zinc is required to create corrosion-resistant iron and steel products among other applications, and lead is an important element in car batteries and other industrial products. These deposits can also contain significant quantities of silver (Ag), which is commonly used in...

Fifty coal samples were obtained from the Democratic People's Republic of Korea (DPRK) through collaboration with the Chinese Academy of Sciences, Guiyang, Guizhou, PRC. The coal samples include twenty-eight early Permian semi-anthracite to meta-anthracite, three Jurassic semi-anthracite to anthracite, five Oligocene subbituminous B to C, thirteen Miocene lignite A to high volatile C...

This data release presents whole rock geochemical data and powder X-ray diffraction (XRD) mineralogic data from a suite of mafic and ultramafic geologic units in the United States. One-hundred-twelve samples were analyzed from core and outcrop settings at thirty sites, including from the contiguous United States, Alaska, and Hawaii. Sample localities include some of the large mafic and...