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Tracing and Dating Young Ground Water - cfc groundwater dating - 14.12.2017

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The Reston Groundwater Dating Laboratory Quick Links. Sampling Tips for CFCs CFC instrument in use by the US Geological Survey. () discuss implications of urban air on groundwater dating with CFCs. For example, water  Urban air‎: ‎Eastern USA, Western Europe, urban.

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Send all correspondence having to do with shipping to USGS Groundwater Dating Laboratory Mail stop Room 5B Notice from the Reston Groundwater Dating Laboratory Please contact the main GW Dating Lab email address,, or call. Cfc groundwater dating.

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The USGS Reston Groundwater Dating Laboratory is able to accept samples for the analysis of CFC's and SF6 for groundwater dating from. Atmospheric mixing ratios of CFC, CFC, CFC, SF6 x , and tritium in precipitation for Northern Hemisphere atmosphere. Data for.

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Knowledge of groundwater residence time is important in understanding key issues in the evolution of water quality, whether this occurs due to water–rock. The practicalities of using CFCs and SF6 for groundwater dating and tracing. W G Darling a. *, D C Gooddy a., A M MacDonald b., B L Morrris a,1 a.


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