Submarine groundwater discharge (SGD) into a shallow lagoon on the west coast of Mauritius Island (Flic-en-Flac) was investigated using radioactive ((3)H, (222)Rn, (223)Ra, (224)Ra, (226)Ra, (228)Ra) and stable ((2)H, (18)O) isotopes and nutrients. SGD intercomparison exercises were carried out to validate the various approaches used to measure SGD including radium and radon measurements, seepa...

THE immediate influence of the recent developments in nuclear physics upon the study of cancer is likely to be due to the provision of new and powerful tools for investigation and of new agents with therapeutic possibilities. It is more difficult to assess the significance of the studies of the mechanism of the biological action of radiations necessitated by the protection of large numbers of i...

Submarine groundwater discharge (SGD) is now recognized as an important process of the hydrological cycle worldwide and plays a major role conveyor dissolved compounds to ocean. Naturally occurring radium isotopes (223Ra, 224Ra, 226Ra 228Ra) are widely employed geochemical tracers in marine environments. Whilst Ra were initially predominantly applied study open ocean processes fluxes across con...

Seagrass meadows are ‘blue carbon’ ecosystems widely recognised for their potential role in climate change mitigation. Previous studies have focused mainly on carbon storage within and sediments. However, little is known about contribution of outwelling (i.e., lateral transport) to seagrass budgets. Here, radium isotopes (223Ra 224Ra) were used assess dissolved inorganic (DIC) total alkalinity ...

Radium isotopes and radon are routinely used as tracers to quantify groundwater porewater fluxes into coastal freshwater systems. However, uncertainties associated with the determination of tracer flux often poorly addressed neglect all potential errors conceptualization system (i.e., conceptual uncertainties). In this study, we assess magnitude some key related radium inputs supplied by a wate...

The geochemical and isotopic (strontium, boron, radium, oxygen, hydrogen) variations of geothermal waters from five different regions in Morocco were investigated in order to evaluate the sources of solutes and the mechanisms of water-rock interaction. During 2008 to 2010, twenty-two geothermal water samples were collected from the southern, central, and northern parts of Morocco. The water sam...