Geo-chemical Correction of Carbon-14 in Dissolved Inorganic Carbon used for Groundwater Age Dating in the Glacial Aquifer System, Conterminous United States

Data provided here describe geochemical correction of carbon-14 in dissolved inorganic carbon (DIC) for groundwater age dating. Datasets include major ion chemistry of groundwater samples, model parameter inputs, and final corrected carbon-14 in DIC. Geochemical correction was completed in two phases: determination of reactive phase mole transfers through an inverse geochemical model (PHREEQC; Parkhurst and Appleo, 1992) and tracking of isotopic mass transfer among phases (NetpathXL; Parkhusrtand Charlton, 2008).

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Field	Value
accessLevel	public
bureauCode	{010:12}
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catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained	20220721212438
identifier	USGS:59c2cdf8e4b091459a61d464
metadata_type	geospatial
modified	20200827
old-spatial	{"type": "Polygon", "coordinates": [[[-125.0683593736, 36.279354494087], [-125.0683593736, 48.893327701388], [ -66.005859375956, 48.893327701388], [ -66.005859375956, 36.279354494087], [-125.0683593736, 36.279354494087]]]}
publisher	U.S. Geological Survey
publisher_hierarchy	Department of the Interior > U.S. Geological Survey
resource-type	Dataset
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theme	{geospatial}
Groups	AmeriGEOSS National Provider North America
Tags	alkalinity amerigeo amerigeoss aqueous-solutions atmospheric-chemistry calcium carbon-cycle carbonate-minerals carbonate-rocks cenozoic chemical-equilibrium chemical-interactions chemical-precipitation chemical-speciation ckan connecticut cycle-3 data-release dissolved-carbon-dioxide dissolved-gases exchangeable-cations gas-exchange geo geochemical-processes geochemistry geoss glacial-deposits glacial-drift glacial-soils groundwater groundwater-flow groundwater-quality half-life holocene hydrogeochemistry hydrogeology idaho illinois indiana iowa isotope-fractionation kansas magnesium maine massachusetts mathematical-simulation michigan minerals minnesota missouri montana national nawqa nebraska new-hampshire new-jersey new-york north-america north-dakota ohio pennsylvania pleistocene quaternary rain rhode-island soil-chemistry soil-plant-atmosphere-interactions soil-sciences soil-water solubility south-dakota stable-isotopes thermodynamics united-states unsaturated-flow usgs-59c2cdf8e4b091459a61d464 vadose-zone vermont washington water-analysis water-chemistry water-quality wisconsin
isopen	False
license_id	notspecified
license_title	License not specified
maintainer	John E. Solder
maintainer_email	jsolder@usgs.gov
metadata_created	2025-11-20T12:52:21.369086
metadata_modified	2025-11-20T12:52:21.369091
notes	Data provided here describe geochemical correction of carbon-14 in dissolved inorganic carbon (DIC) for groundwater age dating. Datasets include major ion chemistry of groundwater samples, model parameter inputs, and final corrected carbon-14 in DIC. Geochemical correction was completed in two phases: determination of reactive phase mole transfers through an inverse geochemical model (PHREEQC; Parkhurst and Appleo, 1992) and tracking of isotopic mass transfer among phases (NetpathXL; Parkhusrtand Charlton, 2008).
num_resources	2
num_tags	83
title	Geo-chemical Correction of Carbon-14 in Dissolved Inorganic Carbon used for Groundwater Age Dating in the Glacial Aquifer System, Conterminous United States