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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Paleolimnological Analysis of Cyanobacteria and Carbon in Sediment Cores from Moreau and Brant Lakes, Adirondack Region, New York, September 2022 Paleolimnological Analysis of Cyanobacteria and Carbon in Sediment Cores from Moreau and Brant Lakes, Adirondack Region, New York, September 2022
This U.S. Geological Survey (USGS) data release contains results of a paleolimnological analysis of cyanobacteria occurrence in Moreau and Brant Lake in the Adirondack Region of New York based on a single sediment core collected in each lake in September, 2022. The data types include 1) lake sediment core data for lead-210 age dating, 2) akinete classification and enumeration data, 3)...
Satellite Imagery Products from 2010, 2011, 2018 and Soil Data from 2021-22 on Jamestown Island, VA Satellite Imagery Products from 2010, 2011, 2018 and Soil Data from 2021-22 on Jamestown Island, VA
The U.S. Geological Survey, in partnership with the National Park Service's Colonial National Historic Park (COLO), used commercially available satellite data and soil samples from around Jamestown Island to evaluate vegetative health and soil conditions on the island to further understand the extent and severity of conditions that threaten archaeological sites and vegetation. 50 sites...
Datasets used to map the potentiometric surface and depth to water, spring 2022, Mississippi River Valley alluvial aquifer Datasets used to map the potentiometric surface and depth to water, spring 2022, Mississippi River Valley alluvial aquifer
Potentiometric-surface and depth-to-water maps for spring 2022 were created for the Mississippi River Valley alluvial aquifer (MRVA) using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. The potentiometric surface was referenced to the North American Vertical Datum of 1988 (NAVD 88), This data release contains (1) the location...
Annual repeat magnetotelluric data for monitoring The Geysers Geothermal Field, California (2021-2023) Annual repeat magnetotelluric data for monitoring The Geysers Geothermal Field, California (2021-2023)
The Geysers geothermal field in northern California is currently the largest energy producing steam field in the world. To better understand temporal subsurface changes in the steam field a geophysical monitoring project including continuous passive seimsic and repeat magnetotelluric measurements was funded by the California Energy Commission and led by Lawrence Berkeley National Lab. As...
Domestic and international rock geochemistry of ore and host rocks generated by the Critical Minerals Mapping Initiative Domestic and international rock geochemistry of ore and host rocks generated by the Critical Minerals Mapping Initiative
Geochemical data included were generated as part of the Critical Minerals Mapping Initiative (CMMI). Individual samples are classified according to the Hofstra et al. (2021) CMMI deposit classification scheme. The goal of CMMI is to collaborate with Geoscience Australia and the Geological Survey of Canada to build a global database of critical minerals in a variety of ore deposits. The...
Magnetic susceptibility and gamma ray spectrometry measurements in southwestern Montana, 2025 Magnetic susceptibility and gamma ray spectrometry measurements in southwestern Montana, 2025
This dataset includes rock magnetic susceptibility and gamma ray spectrometry measurements from 204 outcrops in southwest Montana during 2025. The measurements were collected to understand the causative sources of airborne magnetic and radiometric survey anomalies in the Idaho-Montana porphyry belt. Sixteen magnetic susceptibility measurements were collected at each analyzed site using a...
Magnetic susceptibility, color spectrophotometry, X-ray fluorescence (XRF), and particle size data of the 82-foot NJ-GSB sediment core from Great Swamp National Wildlife Refuge, Morris County, New Jersey Magnetic susceptibility, color spectrophotometry, X-ray fluorescence (XRF), and particle size data of the 82-foot NJ-GSB sediment core from Great Swamp National Wildlife Refuge, Morris County, New Jersey
Analyses were conducted in 2025 to examine glaciolacustrine rhythmic laminations interpreted as annual layers (varves) in a sediment core collected from Great Swamp National Wildlife Refuge in Morris County, New Jersey in 2010. The dataset includes results from portable X-ray fluorescence (pXRF), particle size analysis (PSA), visible (color) and near-infrared spectrophotometry, and...
Select Mineral Abundancy Data from Alaska Placer and Pan Concentrate Samples Reanalyzed from 2020-2025 Select Mineral Abundancy Data from Alaska Placer and Pan Concentrate Samples Reanalyzed from 2020-2025
Samples from the Alaska Placer Concentrate Collection (APCC) were retrieved from the U.S. Geological Survey (USGS) National Geochemical Sample Archives and submitted for mineralogical analysis at the Colorado School of Mines. The APPC contains samples from placer mining operations throughout Alaska. The original collection contained approximately 5,000 samples that were collected by USGS
Bioassay data for aircraft deicer and anti-icer formulations and surface water receiving runoff from Milwaukee Mitchell International Airport from 1996-2021 Bioassay data for aircraft deicer and anti-icer formulations and surface water receiving runoff from Milwaukee Mitchell International Airport from 1996-2021
This data release includes two datasets: The first dataset includes results of bioassay (acute and chronic toxicity) tests on five aircraft deicer and anti-icer products, which were tested for determination of the 15-min EC50 (Aliivibrio fischeri), the acute LC50 (Ceriodaphnia dubia and Pimephales promelas), and the chronic IC25 (C. dubia, P. promelas, and R. subcapitata) at the...
Stream Network Capacity to Support Beaver Dams, Tualatin River Basin, Northwest Oregon Stream Network Capacity to Support Beaver Dams, Tualatin River Basin, Northwest Oregon
Beaver dams can help streams connect to their floodplains. These floodplain connections can expand the range of available aquatic habitats and aid in the restoration of stream and floodplain processes. North American beavers (Castor canadensis) occupy a wide variety of aquatic habitats; however, their ability to build dams, the agent of stream and floodplain change, is constrained in...
Hydraulic models of two beaver affected reaches in the Tualatin Basin, Oregon Hydraulic models of two beaver affected reaches in the Tualatin Basin, Oregon
Beaver dams affect stream hydraulics by temporarily impounding water in stream channels. Beaver dams and their associated impoundments can potentially influence streamflow hydrographs and stream hydraulics in multiple ways including altering the magnitude and duration of high flows, temporary storage of storm water, and the range and spatial distribution of water depths and velocities in...
Data for Per- and Polyfluoroalkyl Substances (PFAS) in groundwater samples collected by the California Groundwater Ambient Monitoring and Assessment Priority Basin Project, 2019-2024 Data for Per- and Polyfluoroalkyl Substances (PFAS) in groundwater samples collected by the California Groundwater Ambient Monitoring and Assessment Priority Basin Project, 2019-2024
The California Groundwater Ambient Monitoring and Assessment Program Priority Basin Project (GAMA-PBP) analyzed per-and polyfluoroalkyl substances (PFAS) in groundwater samples collected from domestic and public drinking water supply wells in California. GAMA-PBP is a cooperative program between the U.S. Geological Survey and the California State Water Resources Control Board. This...