Data
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Electron microprobe and 40Ar/39Ar isotopic data from muscovite in the Raft River detachment zone, Utah, USA Electron microprobe and 40Ar/39Ar isotopic data from muscovite in the Raft River detachment zone, Utah, USA
This data release includes electron microprobe and 40Ar/39Ar data collected at the U.S. Geological Survey for samples from the Raft River metamorphic core complex in Utah, USA. Rock samples were collected by Raphael Gottardi, currently at Auburn University. Muscovite in thin sections from quartzites, micaceous quartzites, and quartz-kyanite rocks were analyzed by electron probe...
Suspended sediment statistical analyses results for nontidal and tidal stations of the Chesapeake Bay and watershed between 1984-2021 Suspended sediment statistical analyses results for nontidal and tidal stations of the Chesapeake Bay and watershed between 1984-2021
Results of statistical analyses of nontidal and tidal station measurements of suspended sediment concentrations in the Chesapeake Bay and watershed, collected from 1984-2021 by Chesapeake Bay Program and partners and the U.S. Geological Survey. Original measurements were retrieved from online data repositories.
Watershed Attributes for Chesapeake Stream Team Field Sites Watershed Attributes for Chesapeake Stream Team Field Sites
The Chesapeake Stream Team studied 123 streams from 2021 to 2024 to determine whether conservation practices in agricultural and urban settings have improved downstream nontidal stream health. To isolate effects of conservation practices, scientists must account for other attributes in the greater watershed that may affect measured metrics of stream health. This release includes over 450
Contaminants in bed sediment from surface waters collected in the Chesapeake Bay Watershed, 2021-24 Contaminants in bed sediment from surface waters collected in the Chesapeake Bay Watershed, 2021-24
This data release provides contaminant data from bed sediment collected from small streams between 2021 and 2024 in the Chesapeake Bay Watershed. These data are part of a larger study designed to determine how conservation practices are affecting local stream ecosystem health, which stressors are negatively impacting streams, and which landscape characteristics are associated with better...
Macroinvertebrate communities in PA and MD Piedmont mixed agricultural streams, 2023 Macroinvertebrate communities in PA and MD Piedmont mixed agricultural streams, 2023
From 12 May – 18 May 2023, a Virginia Tech team of 2-3 sampled the macroinvertebrate community in 30 Upper Northern Piedmont streams (Maryland and Pennsylvania, USA) as part of a larger stream-health study including other teams who surveyed geomorphology, water quality, flow, temperature, fish community, and fish health at the same 30 streams. Macroinvertebrates were sampled using a 500...
Lithologic logs and photographs of cores from the Atlantic Coastal Plain Lithologic logs and photographs of cores from the Atlantic Coastal Plain
Coring of Atlantic Coastal Plain sediments has long been the basis of many projects funded by the National Cooperative Geologic Mapping Program. Over the past 50 years, more than 50 cores have been obtained, and accompanying geologic field notes (lithologic logs) and photographs were made by various geologists at the time of coring. These lithologic logs and photographs provide a record...
Database for the geologic map of the Frederick 30 x 60 quadrangle, Maryland, Virginia, and West Virginia Database for the geologic map of the Frederick 30 x 60 quadrangle, Maryland, Virginia, and West Virginia
The database for the geologic map of the Frederick 30 x 60 quadrangle covers the distinct geologic provinces and sections of the central Appalachian region that are defined by unique bedrock and resulting landforms. From west to east, the provinces include the Great Valley section of the Valley and Ridge province, the Blue Ridge province, and the Piedmont province; in the extreme...
Magnetic susceptibility, color spectrophotometry, X-ray fluorescence (XRF), and particle size data of the 102-foot NJ-GSA 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 102-foot NJ-GSA 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), color spectrophotometry, and magnetic susceptibility. The core
Cosmogenic 26Al/10Be burial ages and 40Ar/39Ar formation ages for cave sediments and manganese oxide ores in Greenbrier and Monroe Counties, West Virginia and Giles County, Virginia Cosmogenic 26Al/10Be burial ages and 40Ar/39Ar formation ages for cave sediments and manganese oxide ores in Greenbrier and Monroe Counties, West Virginia and Giles County, Virginia
Caves preserve useful archives of fluvial sediments, especially in mountainous landscapes that hinder the preservation of thick, dateable terrace deposits. We used cosmogenic ²⁶Al and ¹⁰Be to date the burial of sediments in four caves along tributaries of the New River: Windy Mouth Cave along the Greenbrier River in West Virginia, Haynes Cave along Second Creek in West Virginia, Bone...
Digital GIS Data for the Bedrock geology of the Evitts Creek and Patterson Creek quadrangles, Maryland, Pennsylvania, and West Virginia from the original map of de Witt and Colton, 1964. Digital GIS Data for the Bedrock geology of the Evitts Creek and Patterson Creek quadrangles, Maryland, Pennsylvania, and West Virginia from the original map of de Witt and Colton, 1964.
This U.S. Geological Survey (USGS) Data Release provides a digital geospatial database for the Bedrock geology of the Evitts Creek and Patterson Creek quadrangles, Maryland, Pennsylvania, and West Virginia from the original map of de Witt and Colton, 1964. Attribute tables and geospatial features (points, lines, and polygons) conform to the Geologic Map Schema (GeMS, 2020) and represent...
Digital GIS data for the Geologic Map of the Beans Cove and Hyndman quadrangles and part of the Fairhope Quadrangle, Bedford County, Pennsylvania from the original map of de Witt, 1974 Digital GIS data for the Geologic Map of the Beans Cove and Hyndman quadrangles and part of the Fairhope Quadrangle, Bedford County, Pennsylvania from the original map of de Witt, 1974
This U.S. Geological Survey (USGS) Data Release provides a digital geospatial database for the bedrock geologic map of the Beans Cove and Hyndman quadrangles and part of the Fairhope quadrangle (de Witt, 1974). Attribute tables and geospatial features (points, lines, and polygons) conform to the Geologic Map Schema (GeMS, 2020) and represent the geologic map as published in the...
Data from Paleocene-Eocene sediments of three cores in the Salisbury Embayment, Maryland and Virginia Data from Paleocene-Eocene sediments of three cores in the Salisbury Embayment, Maryland and Virginia
The Surprise Hill core was drilled on the Northern Neck, Northumberland County, Virginia. The studied section consists of glauconitic quartz sands of the upper Paleocene Aquia Formation and silty clays of the lower Eocene Marlboro Clay. Data from this core were compared to the previously documented South Dover Bridge and Howards Tract cores from Maryland. The purpose of this study was to...