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14c dating groundwater

N., and Busenberg, E., 1993, CFC's-- Tools for Age-Dating and Tracing Shallow Ground Water. C., 1993, Age dating ground water by use of chlorofluorocarbons (CCl), and distribution of chlorofluorocarbons in the unsaturated zone, Snake River Plain aquifer, Idaho National Engineering Laboratory, Idaho. N., Torgersen, T., and Schlosser, P., 1996, Conceptual model for estimating regional fluid velocity in the bedrock of the Mirror Lake Area, Grafton County, New Hampshire. J., 1996, Inferring shallow groundwater flow in saprolite and fractured rock using environmental tracers: Water Resources, Research, v. Geological Survey Water-Resources Investigations 93-4054, 47p.

L.,1995, Chlorofluorocarbons as tracers of groundwater transport processes in a shallow, silty sand aquifer: Water Resources Research 31(3), p. N., 1994, Water-Resources data for the Valdosta area, south-central Georgia, 1961-93: U. L., 1994, An interactive code (NETPATH) for modeling NET geochemical reactions along a flow PATH-- Version 2.0: U. Geological Survey Water-Resources Investigations Report 94-4169, 130 p. N., Busenberg, E., Schlosser, P., Stute, M., and Dorr, H., 1995, Applications of the transient tracers tritium/helium-3, and chlorofluorocarbons for tracing and age-dating young ground water: Field examples from the USA and Germany: in W. Arendt (eds.), Contaminated Soil '95, Kluwer Academic Publishers, The Netherlands, p.

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Qtzlow isotopic concentration 10-12-10-16 long half-life NATURAL CHANGES OF 14CEQUILIBRIUMGEOMAGNETIC FIELDSOLAR ACTIVITYHOMOGENEOUSLY DISTRIBUTEDCLIMATEANTHROPOGENIC CHANGES OF 14CCLOSED SYSTEMNUCLEAR TESTS --- INCREASE OF 14CCOMMON ELEMENTFOSSIL FUEL CONSUMPTION--- DILUTION OF 14CT1/2 5730 y CO2(aq) 100 pmc δ13C -25‰2HCO3 50 pmc δ13C -12.5 ‰Ca CO3 0 pmc δ13C 0 ‰CO2(aq) H2O Ca CO3 2HCO3- Ca How does carbon and radiocarbon get in the groundwater?

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