Search Data.gov
Found 1174 dataset(s) matching "isotopes".
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Four tabular datasets containing 1) 2016-2018 water quality analysis results of NO3+NO2, NH4, & Total Dissolved Phosphorus (TDP) for selected anchialine pools in Kaloko-Honokohau NHP and in...
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The effect of photochemical degradation on the carbon cycle in a eutrophic, semiarid estuary (Baffin Bay, Texas) was investigated using closed-system incubations. During this study, we collected...
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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 details mercury concentrations and mercury stable isotope values collected as part of an environmental mercury assessment encompassing the Mobile and Tombigbee Rivers as well as two...
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Data set includes water Sr:Ca, Ba:Ca, and δ18O for the Mississippi River and tributaries, and otolith Sr:Ca, Ba:Ca, and δ18O data from bigheaded carp (Silver Carp and BIghead Carp) collected in...
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This dataset provides information on fish species composition and their diet information for 16 lakes and 16 ponds at two locations on the central Arctic Coastal Plain, Alaska. In one table, we...
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Values of second dielectric and refractivity virial coefficients computed, with rigorous accounting for quantum effects, from state-of-the-art pair potentials and interaction polarizabilities. ...
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This dataset contains all data used in this study, including site ID, latitude, longitude, watershed land cover, water chemistry, and carbon and nitrogen stable isotope ratios of periphyton,...
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This dataset contains geochemical, isotopic, and biomarker data derived from sediment cores collected in Siskiwit Bay, Lake Superior, Wisconsin, USA. The dataset supports the reconstruction of...
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The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water and casing gas samples from oil wells and injectate stored in...
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Water samples from 50 domestic wells located <1 kilometer (km) (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for chemical,...
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Macroinvertebrate samples were collected from streams tributary to Honnedaga Lake and from the Middle Branch of the Black River during 2012-2016 and analyzed for methylmercury concentrations and...
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The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board compiled and analyzed data on evaporative water loss at produced water disposal ponds at...
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The dataset includes four seperate files of data for a project that examined the strontium isotopic composition of otoliths of Clear Lake Hitch. Otoliths examined in this study were from...
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This data release contains 60 detrital zircon age spectra, based on U and Pb isotope ratio measurements for 9399 single grains. The samples are from Paleogene strata of the U.S. Gulf Coast. Of the...
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Water and gas chemistry data from: Mariner, R.H., Presser, T.S., Evans, W.C., 1977. Chemical, Isotopic, and Gas Compositions of Selected Thermal Springs in Arizona, New Mexico, and Utah: U.S....
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Water chemistry data from: Young, H.W., Parliman, D.J. and Mariner, R.H., 1988. Chemical and hydrologic data for selected thermal-water wells and non-thermal springs in the Boise Area,...
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Water and gas chemistry data from: Mariner, R.H., Evans, W.C., and Young, H.W., 2006. Comparison of circulation times of thermal waters discharging from the Idaho batholith based on geothermometer...
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The Hells Canyon Complex (HCC) is comprised of a series of three consecutive reservoirs (Brownlee, Oxbow, and Hells Canyon) along a 145 km reach of the Snake River bordered by Idaho to the east...
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The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water and gas samples in the Poso Creek, Midway-Sunset, and Buena Vista...
