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Found 105 dataset(s) matching "nitrogen isotope ratio".
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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...
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This dataset contains water temperature, salinity, and other ocean and atmosphere parameters taken by CTD, ADCP, and other instruments from the research vessel Araon, cruise ARA13B, in the Bering...
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Water and gas chemistry data from: Mariner, R.H., Presser, T.S. and Evans, W.C., 1977. Hot springs of the central Sierra Nevada, California: U.S. Geological Survey Open-File Report 77-559, 37 p.,...
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This data release contains tracer data and estimated age distributions of groundwater samples collected as part of a water availability study for the Mississippi alluvial plain (MAP). The MAP is...
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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...
