Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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2022 Organic Matter Research Lab Sacramento, California Vectorized Fluorescence Data
The U.S. Geological Survey (USGS) California Water Science Center (CAWSC) Organic Matter Research Laboratory (OMRL) provides laboratory services and support to regional and national projects in the analysis of organic matter using the latest methods in absorbance and fluorescence spectroscopy. Optical measurements such as absorbance and fluorescence are used to gain insight into dissolved organic
2022 Organic Matter Research Lab Sacramento, California Full Spectra Absorbance Data
The U.S. Geological Survey (USGS) California Water Science Center (CAWSC) Organic Matter Research Laboratory (OMRL) provides laboratory services and support to regional and national projects in the analysis of organic matter using the latest methods in absorbance and fluorescence spectroscopy. Optical measurements such as absorbance and fluorescence are used to gain insight into dissolved organic
Carbon Dioxide Storage Resources-Anadarko and Southern Oklahoma Basins: Chapter R. Spatial Data
This data release provides shapefiles that represent storage assessment units (SAUs) and drilling-density cells in the Anadarko and Southern Oklahoma Basins of Colorado, Kansas, Oklahoma, and Texas 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 storage resources. The SAU i
Carbon Isotopes, Total Organic Carbon, Programmed Pyrolysis, Volcanic Zircon U-Pb, and Geochemistry Data from the Hue Shale, Arctic Alaska - 2024
This dataset contains results from a stratigraphic section of the Hue Shale located along the Jago River in the Arctic National Wildlife Refuge at 69.9099, -143.3947 (WGS84). Sample heights were measured with a tape measure in a continuous succession. Zircon grains from volcanic ashes were analyzed via laser ablation at either the University of California, Santa Barbara (UCSB) or the University of
Geospatial database of the 2022 summit and Northeast Rift Zone eruption of Mauna Loa volcano, Hawai'i
In the late evening of November 27, 2022, an effusive eruption began inside Moku'aweoweo caldera at the summit of Mauna Loa volcano. Within a few hours, lava had covered most of the caldera floor, and several fissures just outside caldera sent short lava flows up to 3 kilometers (2 miles) to the southwest. Later in the morning of November 28, summit effusion ceased and the eruption moved into the
Communication Towers across the Greater Sage-Grouse Range
We compiled and verified a dataset which represents a comprehensive inventory of communication tower infrastructure across the range of the greater sage-grouse (Centrocercus urophasianus) from 1990 to 2023. Our dataset is an annual spatial time series product that allows users to visualize, assess, and analyze tower locations and duration (i.e., including date of construction through date of disma
GIS Data for Geologic Map of the Bayhorse Area, Central Custer County, Idaho
This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of the Bayhorse area, central Custer County, Idaho (Hobbs and others, 1991). Attribute tables and geospatial features (points, lines, polygons) conform to the Geologic Map Schema (GeMS, 2020) and represent the geologic map as published in the USGS Miscellaneous Investigations Series Map I-18
RADSeq Data to assess population structure of Desmophyllum pertusum found along the United States eastern continental margin
This dataset contains metadata about the origin of the cold-water coral samples that were RAD sequenced and the single nucleotide polymorphism (SNPs) generated for population genomic analyses. These data were used to examine patterns of genomic structure of Desmophyllum pertusum from throughout US waters along the eastern continental margin and the Gulf of Mexico. The raw sequence data are archive
Zanclean Age Benthic Foraminiferal Census and Sedimentologic Data from the Yorktown Formation, Spring Grove, Va
Data consist of census counts of Pliocene benthic foraminifera from the Yorktown Formation at Pipsico Boy Scout Camp, Spring Grove, Virginia. Data consist of grain-size distribution by weight in grams of samples collected from the Yorktown Formation exposed in outcrop along the James River at Pipsico Boy Scout Camp, Spring Grove, Virginia. In total, counts of individuals from 15 samples and 48 spe
Data for improved understanding of the susceptibility of Lake Superior to threats from groundwater contamination
This data release contains a data compilation and analysis of the hydrogeology in the U.S. portion of the Lake Superior watershed, for the purpose of providing background data for future study and modeling of groundwater and contaminant movement in the watershed. The data support an analysis of groundwater contributions to the water budget of Lake Superior and provide hydrogeologic context for fut
Reflectance data from figures in: Using X-ray spectrum of carbon in electron microprobe analysis to determine thermal maturity of organic matter in mudstones
Conventional methods of assessing organic matter (OM) thermal maturity have limitations and often fail to reflect the geochemical heterogeneity between individual organic phases in mudstone samples. Vitrinite and solid bitumen reflectance, for example, is often measured to estimate OM thermal maturity but is restricted to specific types of OM. Alternative methods deserve exploration. This dataset
Pre-mining environmental baseline characterization of the Hajigak iron deposit: 2020 field season
These data include geochemical analyses of rock and water samples collected from the Hajigak iron deposit, Bamyan and Wardak Provinces, Afghanistan in 2020.