Data

These data are microanalyses of 22 polished thin sections that were examined using a scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS) to identify minerals and observe their relationships at high magnification. Samples are from uranium mineralized core drilled at the Coles Hill uranium deposit, Pittsylvania County, Virginia, and one sample of the...

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered conventional and continuous oil and gas resources in the Los Angeles Basin Province, California. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within...

Geochemical and mineralogical characterization data was collected for samples of the Greenhorn Formation taken from the USGS Portland 1 core, which is stored in the USGS Core Research Center (library number E099 https://my.usgs.gov/crcwc/core/report/11834). The data was integrated with sedimentological descriptions in a manuscript (Flaum and others, 2025) that includes revised...

This data release contains the boundaries of assessment units, assessment input data, and resulting fact sheet data tables for the assessment of undiscovered oil and gas resources in Oman. The assessment unit is the fundamental unit used in the National and Global Oil and Gas Assessment Project for the assessment of undiscovered oil and gas resources. The assessment unit is defined...

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered oil and gas resources in upper Paleozoic reservoirs of the Wind River, Big Horn, and Powder River Basin provinces, Montana, Wyoming, South Dakota, and Nebraska. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of...

This dataset contains the data from laboratory and field testing of protocols to measure gas fluxes through mass flow meters attached to rigid chambers sealed to the ground. These tests demonstrate the quality of the ground seal and weather conditions around the chamber are critical for the quality of the data obtained from the technique. This measurement approach is useful for...

This dataset contains methane emissions measurements, gas compositions, and methane carbon isotope geochemistry analysis results from orphan oil and gas wells in the Kevin-Sunburst Dome in Toole County, Montana. Emissions measurements were taken between 2021 and 2023, and gas samples were collected in July, 2023.

In 2024, the United States Geological Survey (USGS) compiled rock properties data from the USGS Core Research Center's (CRC) database for the Southwestern Wyoming Province and adjoining areas to better characterize the potential hydrocarbon sources and reservoirs in the area. Data from 53 wells were collected from data analysis results located in the CRC database. These data are derived...

This data release contains the boundaries of assessment units, assessment input data, and resulting fact sheet data tables for the assessment of undiscovered oil and gas resources in the Greater Caspian area. The assessment unit is the fundamental unit used in the National and Global Oil and Gas Assessment Project for the assessment of undiscovered oil and gas resources. The assessment...

This data release contains the boundaries of assessment units, assessment input data, and resulting fact sheet data tables for the assessment of undiscovered oil and gas resources of the Zagros Fold Belt Province. The assessment unit is the fundamental unit used in the National and Global Oil and Gas Assessment Project for the assessment of undiscovered oil and gas resources. The...

Geochemical data were generated from multiple thermally immature drill cores of the Eagle Ford Group across Texas. This data set accompanies a journal article that shows the relationship between whole rock S/Fe and degree of organic sulfurization across the thermally immature Eagle Ford in Texas. The data include LECO total carbon and total organic carbon, programmed pyrolysis, whole...

This data release contains multiple data layers and describes the processing steps associated with the U.S. Geological Survey Professional Paper 1900 "Prospectivity Mapping for Geologic Hydrogen". The data comprise the geologic and geophysical inputs used in support of the U.S. Geological Survey's efforts to create the first map of geologic hydrogen prospectivity within the U.S. The maps...