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Found 8 datasets matching "C isotope composition".

Federal
Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Sulfur isotope analysis of samples from outside the Kīlauea summit crater lake
- 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...
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Search relevance: 65.03 | Views last month: 0
Federal
Chemical and isotopic composition of gas, water, and solids from the 2019-2020 water lake in Halema’uma’u Crater, Kīlauea Volcano, Hawaii: Sulfur and oxygen isotopes of dissolved sulfate
- 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...
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Search relevance: 64.59 | Views last month: 0
Federal
Water temperature, salinity, delta carbon-13, oxygen, and others taken by CTD and water samples from the research vessel Thomas G. Thompson in the Indian Ocean and Southern Ocean from 2018-11-07 to 2018-12-12 (NCEI Accession 0219887)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-09-16T00:00:00.000+00:00
This dataset contains stable carbon isotope composition of DIC measured on seawater samples from the SE Indian/Southern Ocean as part of the CROCCA-2S cruise. Additional O2, temperature, salinity,...
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Search relevance: 58.91 | Views last month: 0
Federal
Calculated Diffusivities for Water Isotopologues in Carbon Dioxide, Nitrogen, and the Atmosphere of Mars, and for Methane Isotopologues in Nitrogen Representing the Atmosphere of Titan
- Organization: National Institute of Standards and Technology
- Updated: 2021-04-19 00:00:00
Values are computed for the dilute-gas diffusivity of water isotopologues in N2, CO2, and their mixture at a composition representing the atmosphere of Mars, for standard conditions of 101.325 kPa...
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Search relevance: 53.87 | Views last month: 0
Federal
Carbonate geochemistry dataset of the soil and an underlying cave in the Ozark Plateaus, central United States
- Organization: Department of the Interior
- Updated: 2020-08-21T00:00:00Z
The nature of carbon (C) cycling in the vadose zone where groundwater is in contact with abundant gas-filled voids is poorly understood. The objective of this study was to trace C cycling in a...
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Search relevance: 51.59 | Views last month: 0
Federal
Carbon, nitrogen, and phosphorus content of adult emergent Diptera before and after a fire-storm sequence in the Colorado River near Shinumo Creek, Grand Canyon, AZ
- Organization: Department of the Interior
- Updated: 2020-10-28T00:00:00Z
This dataset includes total phosphorus (TP), total nitrogen (TN), and total carbon (TC) concentrations as well as δ15N and δ13C composition, and overall C:N:P stoichiometry for adult emergent...
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Search relevance: 43.75 | Views last month: 0
Federal
Mineralogy, chemistry and isotope composition of silica sinter deposits from the Upper Geyser Basin, Yellowstone National Park: uranium and thorium isotope data
- Organization: Department of the Interior
- Updated: 2020-08-31T00:00:00Z
Sample Analyses: Four samples of silica sinter from Giant and Castle Geysers compo sedof opal-A or opal-A/C were analyzed for U-Th isotopes at USGS laboratories in Denver, CO...
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Search relevance: 37.80 | Views last month: 0
Federal
Water-quality and phytoplankton data for Lake Pontchartrain and the western Mississippi Sound associated with operation of the Bonnet Carré Spillway, 2008–2020
- Organization: Department of the Interior
- Updated: 2023-03-09T00:00:00Z
The Bonnet Carré Spillway (BCS), located about 28 miles northwest of New Orleans, Louisiana, was constructed in the early 1930s as part of an integrated flood-control system for the lower...
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Search relevance: 19.82 | Views last month: 0

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