Using the radium quartet for evaluating groundwater input and water exchange in salt marshes

@inproceedings{Rama1996UsingTR,
  title={Using the radium quartet for evaluating groundwater input and water exchange in salt marshes},
  author={Rama Rama and Willard S Moore},
  year={1996}
}
The fluxes of 226Ra (half-life = 1600 years) and 228Ra (half-life = 5.7 years) from the North Inlet salt marsh to the sea are much larger than can be supported by decay of their Th parents in the surface marsh sediments. These fluxes are sustained almost entirely by groundwater flow through the marsh. An average groundwater flow of approximately 10 cm3 cm−2 day−1 is indicated if the groundwater activities we have measured are representative. The fluxes of 223Ra (half-life = 11.4 day) and 224Ra… CONTINUE READING

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