• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This data set provides measurements of the isotopic composition of black carbon and organic carbon aerosols collected at two locations in interior Alaska during the summer of 2013, as part of...

• none
• none
• zip
• pdf
• pdf
• html
• +1 more

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2020-12-05T00:00:00.000+00:00

This dataset contains total particle flux and content, Nd content and isotopic composition, and radiocarbon contents in sinking particles collected by sediment traps deployed at 3 depths on the...

• none
• none
• none
• none
• none
• none
• +2 more

• Organization: Department of the Interior
• Updated: 2020-08-31T00:00:00Z

During October 1995 through March 2014, the U.S. Geological Survey in cooperation with the National Park Service, Luray, Virginia Station collected and analyzed samples of selected springs, air...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2023-02-28T00:00:00Z

The dataset presented here represents the concentrations and stable isotopic composition of gaseous mercury (Hg) for 31 sites across the United States. This national-scale monitoring effort was...

• xml
• xml

• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This data set includes measurements of standard geochemical variables, dissolved CO2, dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), fine particulate organic carbon (FPOC), and...

• none
• zip
• pdf
• html
• none

• Organization: Department of the Interior
• Updated: 2023-03-30T00:00:00Z

Aliquots of collected water samples were prepared for isotopic analysis at the USGS laboratories in Menlo Park, CA by precipitating dissolved sulfate as barium sulfate, using the methods of...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2022-10-24T00:00:00Z

The Yellowstone Plateau Volcanic field consists of lavas from the last two million years. The most recent volcanic units are the Central Plateau Member and the older Upper Basin Member rhyolites...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2023-03-30T00:00:00Z

Samples from outside the crater lake were analyzed for their sulfur isotopic composition. Samples of sulfate alteration and native sulfur from the Kīlauea summit, Halema’uma’u crater (HMM), and...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2025-07-18T00:00:00Z

This data release includes sampling location data; field-collected stream attribute data; laboratory-analyzed chemistry concentrations (total mercury, methyl mercury) and isotopic composition...

• xml
• xml

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2021-06-14T00:00:00.000+00:00

This dataset contains Isotopic composition (13C and 14C) of sedimentary organic carbon within sediments collected aboard R/V Weatherbird II and R/V Justo Sierra cruises in the southern Gulf of...

• none
• none
• none
• none
• none
• none
• +3 more

• Organization: Department of the Interior
• Updated: 2023-02-22T00:00:00Z

Mercury is an atmospherically transported contaminant found even in relatively pristine habitats. Once accumulated at the base of the food web, mercury can move between animals that are linked...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2020-08-31T00:00:00Z

This data release contains chemical and isotopic data used in an investigation of nitrate sources and transport in the Upper Illinois River basin. Samples (total = 445) include river water from...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2023-01-23T00:00:00Z

Fish collected for taxonomic and systematic purposes are often preserved and then archived in museum collections. Preserved fish are commonly first fixed in a formalin solution and then...

• xml
• xml

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2018-10-25T00:00:00.000+00:00

This dataset is the SURATLANT (SURveillance ATLANTique) dataset and consists of individual data of temperature, salinity, dissolved inorganic carbon (DIC) and its isotopic composition d13CDIC,...

• html
• none
• none
• none
• none
• none
• +4 more

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2007-11-19T00:00:00.000+00:00

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI...

• none
• none
• none
• none
• none
• none
• +1 more

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2020-01-03T00:00:00.000+00:00

This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI...

• none
• none
• none
• none
• none
• none
• +2 more

• Organization: Department of the Interior
• Updated: 2020-08-19T00:00:00Z

This dataset contains chemical and isotopic data from 39 produced water samples collected from sealed separators containing water from horizontal hydrocarbon wells in the lower Eagle Ford Group....

• xml
• xml

• Organization: Department of the Interior
• Updated: 2023-04-21T00:00:00Z

The Hawaiian-Emperor chain, the surface expression of the Hawaiian mantle plume which has been active for at least 81 Ma, is divided into the Emperor Seamounts (81-47 Ma), Northwest Hawaiian Ridge...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2021-10-25T00:00:00Z

Ice core from Greenland was melted, filtered, and homogenized. Its stable hydrogen (δ2H) and oxygen (δ18O) isotopic compositions were adjusted to approximately match those of USGS46 ice core water...

• xml
• xml

• Organization: Department of the Interior
• Updated: 2023-03-30T00:00:00Z

Samples of the crater lake water were filtered in the field with a 0.45 micron filter. Subsequently, additional precipitates formed in the solute-rich samples (secondary precipitates). The solids...

• xml
• xml