Introduction: Recent work has proposed that the nitrogen isotopes in marine sediments can be impacted by anaerobic oxidation of methane (AOM), since nitrogen uptake by anaerobic methanotrophic archaea ...

Japan has given repeated assurances that the water is safe, saying it has been filtered to remove most isotopes though it does contain traces of tritium, an isotope of hydrogen hard to separate ...

Subterranean estuaries the, subsurface mixing zones of terrestrial groundwater and seawater, substantially influence solute fluxes to the oceans. Solutes brought by groundwater from land and solutes ...