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Found 544 dataset(s) matching "isotopic analysis".
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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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Examination of food webs and trophic niches provide insight into organisms’ functional ecology, yet few studies have examined the trophodynamics within submarine canyons, where the interaction of...
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This dataset includes four tables with isotopic data and ages for selected igneous bedrock samples collected in 2001 through 2003 from the Western Alaska Range, southcentral Alaska: (1) the...
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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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This dataset describes mercury (Hg) stable isotope values in fish dorsal muscle from different freshwater environments across the globe. Fish were collected at numerous field sites in North...
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This release includes data used to evaluate the structure and function of the Ross Lake and Diablo Lake food webs. This includes data on zooplankton density and production (zooplankton_density.csv...
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Data set from peer-reviewed publication: A. J. Fleisher et al., Absolute 13C/12C Isotope Amount Ratio for Vienna Pee Dee Belemnite from Infrared Absorption Spectroscopy, Nature Physics....
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The stable hydrogen (delta 2H) and oxygen (delta 18O) isotopic compositions of more than 1,400 daily or weekly composite samples of precipitation from four National Atmospheric Deposition Program...
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Chemistry and Isotope Data Sample Collection: Water samples were collected from approximately 100 feet (30 meters) below the water table using either a 4 foot or 6 foot long stainless-steel...
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Water samples for Oxygen-18 and deuterium isotope determinations were stored unfiltered in 15 ml glass bottles and analyzed at the USGS laboratories in Reston, Virginia. Analysis of oxygen...
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Shallow groundwater samples were collected since 2006 for routine analysis by ODEQ from 16 domestic wells (installation dating from the 1970s) and 23 ODEQ groundwater monitoring wells...
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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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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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The Northeast Stream Quality Assessment (NESQA) performed mercury (Hg) isotope analysis of prey fish, game fish, and sediments from 29 sites across an urban to forested land-use gradient. The data...
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This dataset includes chemistry of geothermal water samples of the Camas Prairie area in Idaho. The samples included in this dataset were collected over the period of 2016-2019....
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These metadata sets present the comprehensive geochemical composition of solid and water samples from the site of a 11.4ML (million liters) wastewater spill discovered in January, 2015. Analyses...
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A workbook of all the soils data collected near Holton, Kansas, in agricultural fields. Laboratory analysis of soil properties was completed by Ward Labs in Kearny Nebraska. Isotope analysis of...
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A series of Natural Resource Damage Assessment (NRDA) cruises were conducted in 2010 and 2011 to evaluate the distribution and densities of ichthyoplankton and other zooplankton in Gulf of Mexico...
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This dataset is a collection of geochemical data on samples from the Stibnite-Yellow Pine district of Idaho. The datasets include: whole rock geochemistry; lead, strontium and neodymium isotope...
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This dataset was collected as part of the Chukchi Sea Environmental Studies Program (CSESP), a multi-year, interdisciplinary ecological study focused on areas in outer continental shelf oil and...
