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Found 221 dataset(s) matching "oxygen isotopic analysis".
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Dataset provides inputs and model results of a stable isotope-based mixing model for estimating the relative contribution of seasonal recharge sources to the South Rim groundwater flow system,...
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Located in south-central Texas, the Geronimo Creek and Plum Creek watersheds have long been characterized by elevated nitrate concentrations. From April 2015 through March 2016, an investigation...
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Modern observations of planktic foraminifera from sediment trap studies help to constrain the regional ecology of paleoceanographically valuable species. Results from a weekly-resolved sediment...
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This data release contains five comma separated value (csv) files that describe the location and water-quality data for wells, springs, and streams compiled for the U.S. Geological Survey (USGS)...
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Sulphur Banks, near the summit of Kīlauea Volcano on the Island of Hawai`i, is a thermal area where volcanic gases and steam are discharged. A research well drilled in the 1920s at Sulphur Banks...
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This dataset contains a compilation of seafloor surface benthic foraminifera assemblages, baseline stable carbon and oxygen isotope measurements from benthic foraminifera, and short-lived...
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This U.S. Geological Survey (USGS) Data Release is focused on the geochemistry of wastewater (including flowback and produced water) samples, co-produced with natural gas, collected from the...
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Radiocarbon dating of silicified wood was performed at the U.S. Geological Survey’s Radiocarbon Laboratory in Denver, Colorado. All samples were chemically treated using the standard...
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Water and gas chemistry data from: Mariner, R.H., Presser, T.S. and Evans, W.C., 1976. Chemical characteristics of the major thermal springs of Montana. U.S. Geological Survey Open-File Report...
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Stable oxygen and carbon isotope composition (δ18O and δ13C) and magnesium-to-calcium (Mg/Ca) ratios were measured in the tests of planktic foraminiferal species, Globigerinoides ruber (white...
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This dataset includes chemical analyses of dissolved organic carbon, total dissolved nitrogen, nitrate, total alkalinity, delta 18-O, and 228-226-RA collected from surface water (~10m) as part of...
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Assessment of geochemical cycling within tidal wetlands and measurement of fluxes of dissolved and particulate constituents between wetlands and coastal water bodies are critical to evaluating...
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Sea/air gas ratios data was collected in TOGA Area - Pacific (30 N to 30 S) between January 1, 1989 and December 31, 1989 during cruises conducted using ships WECOMA, KILA and MOANA WAVE as part...
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This dataset includes lab data for fish, fish diets, and stable isotopes for fish tissue, vegetation, and invertebrates collected during daylight hours in the Rodeo Lagoon and Lake in Golden Gate...
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Data was collected in the Cache Slough Complex located in the northern San Francisco Estuary to characterize water quality parameters at high spatial resolution. Data collection was conducted on...
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This dataset includes discrete profile measurements of water temperature, salinity, dissolved oxygen, nutrients, oxygen isotope ratio, barium and other hydrographic and chemical data collected...
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Kilauea, on the Island of Hawaii is one of the world’s most active volcanoes and it hosts one of the densest volcano monitoring networks. A deep well on the southwest rim of Kilauea’s caldera,...
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238U/206Pb SHRIMP, 40Ar/39Ar geochronologic, and geochemical data from the Central Virginia Piedmont
The Central Virginia Seismic Zone (CVSZ) is an area of historically increased earthquake activity that is of particular importance due to its proximity to many well-populated regions in the...
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This collection includes physical, biological, and chemical time series, profile, and other in situ oceanographic data from the Global Ocean Ecosystems Dynamics (GLOBEC) Northeast Pacific,...
