Data

This dataset consists of 529 areas of identified nickel laterite in southern Oregon and northern California, compiled in vector shapefile format from six historical publications from 1956 to 1983. Sources include state and federal projects for geologic mapping and critical mineral exploration purposes and are attributed to each polygon. Five original, georeferenced maps are included in...

This metadata record consists of 16 tables containing data generated from laboratory experiments of trichloroethene (TCE) biodegradation and during field characterization and performance monitoring of a groundwater bioremediation pilot test conducted at Site K, Former Twin Cities Army Ammunition Plant, Arden Hills, Minnesota. The data was collected from December 2020 through December...

Coal exploration drill-hole data from 5,037 wells located in Alaska, Colorado, Illinois, Iowa, Kansas, Missouri, Montana, North Dakota, Virginia, and Wyoming are provided in this data release. The wells are located in sixty-eight counties and were drilled between 1971 and 1981, primarily by Phillips Petroleum Company (Phillips). The hard-copy paper data were donated to the U.S...

This data release supports a study investigating the role of sulfur as a catalyst in thermal reaction kinetics, focusing on the effect of pyritic sulfur on early maturation and consequent hydrocarbon generation. Hydrous pyrolysis experiments were conducted on mixtures of gilsonite and pyrite in varying ratios. Untreated and thermally altered residues were analyzed for solid bitumen...

The West and Central African Rift System (WCARS) refers to the series of Cretaceous rift basins where commercial hydrocarbon accumulations have been discovered. The Babouri-Figuil Basin (BFB) is an area of interest in terms of petroleum prospecting related to the WCARS. Many researchers have identified potential petroleum source rocks in the BFB. However, most of these studies have...

This data release describes optical photothermal infrared (OPTIR) spectroscopy data used to map sedimentary organic matter functional group distributions at 500 nm resolution in a sample from the Lower Cretaceous Sunniland Limestone from the South Florida Basin. Examined fields of view include occurrences of amorphous organic matter (AOM), inertinite, micrinite, solid bitumen...

This data release provides shapefiles that represent storage assessment units (SAUs) and drilling-density cells in the Central California Coast, Los Angeles, Sacramento, San Joaquin, and Ventura Basins of California in the United States. The SAU is the fundamental unit used in the National Assessment of Geologic Carbon Dioxide Storage Resources project for the assessment of geologic CO2...

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.

Thucholites are unique organic features from igneous and sedimentary rocks composed of a U-C-rich interior enclosed by an organic outer shell. Here, we evaluated thucholites from the Ediacaran Salt Range Formation of the Upper Indus Basin in Pakistan using field emission scanning electron microscopy (FESEM) and nanoscale secondary ion mass spectroscopy (NanoSIMS). The thucholites can be...

Gravity data were collected from 2022 through 2024 to provide more detailed data for geophysical profile modeling of the Midcontinent Rift System and associated structures. This data release provides the complete Bouguer anomaly gravity data for 256 new gravity stations to supplement existing data and replace erroneous existing data.

In addition to their potential for energy generation, coal and coal byproducts may be economically important resources if they are enriched in critical minerals such as rare earth elements or if their organic carbon can be converted to gas by stimulated microbial methanogenesis. Samples of coal refuse (culm) from a historic mine site in the anthracite region of Pennsylvania were...