All Data
Explore all data by the topics and refine type to find the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
Filter Total Items: 16591
Carboniferous cyclicity in the Arkoma Basin, Arkansas in the Midcontinent of North America Carboniferous cyclicity in the Arkoma Basin, Arkansas in the Midcontinent of North America
In this data release we present zircon U-Pb ages and εHf(t), feldspar 40Ar/39Ar ages, and whole rock major and trace elemental abundances to constrain the Morrowan-Atokan Boundary, the timing of onset of high-frequency cycles and the redox and salinity changes associated with rapidly changing depositional environments within the Arkoma Basin. Zircon and sanidine data were collected from...
TA HVSR Curves and Peak Frequencies TA HVSR Curves and Peak Frequencies
Earthquake ground motions are modified by local geologic site conditions. Soft soils and basin sediments may amplify and prolong the duration of ground shaking, necessitating site characterization to improve existing ground motion predictions and seismic hazard analyses. Horizontal-to-Vertical Spectral Ratio (HVSR) measurements distinguish one or more site resonant frequencies and the...
Water-quality data for treated drinking water and treated wastewater effluent at Fort Irwin National Training Center, California Water-quality data for treated drinking water and treated wastewater effluent at Fort Irwin National Training Center, California
Fort Irwin National Training Center uses treated groundwater for both drinking and irrigation purposes. Wastewater is treated locally at Fort Irwin National Training Center using tertiary treatment methods and the treated wastewater effluent is discharged into percolation ponds and allowed to percolate into the local groundwater system. Specific conductance, total dissolved solids...
Phytoplankton Data for Samples Collected at 18 Adirondack Lakes, New York State, July to October 2024 Phytoplankton Data for Samples Collected at 18 Adirondack Lakes, New York State, July to October 2024
This data release contains phytoplankton identification and enumeration data from the analysis of water samples collected from 18 lakes within the Adirondack Park, New York State. Samples were collected as part of the Adirondack Long-Term Monitoring (ALTM) program (for more information, refer to: New York State Energy Research and Development Authority, 2015). The ALTM has monitored...
Elevation data from Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River, Colorado, 2025 Elevation data from Fountain Creek between Colorado Springs and the confluence of Fountain Creek at the Arkansas River, Colorado, 2025
The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has been collecting topographic data annually since 2012 at 10 study areas along Fountain Creek, Colorado. The 10 study areas are located along Fountain Creek between Colorado Springs and the confluence of Fountain Creek and the Arkansas River in Pueblo. This data release presents topographic survey data, Light...
Electrical resistivity tomography (ERT) geophysical survey at Brookside West, Beaumont, California, December 2024 Electrical resistivity tomography (ERT) geophysical survey at Brookside West, Beaumont, California, December 2024
Surface electrical resistivity tomography (ERT) data were acquired December 2 - 5, 2024 by the U.S. Geological Survey (USGS) at the San Gorgonio Pass Water Agency's Brookside West site in Beaumont, California. The purpose of this survey was to map near surface geologic structure in an area that the San Gorgonio Pass Water Agency plans to develop as a managed aquifer recharge site. Three...