NMDC Water environmental medium value set formed as result of saline water ocean water EcoLexicon:sea_water When we have more classes representing the various processes which make seawater seawater, we can further axiomatise this class. https://en.wikipedia.org/wiki/Sea_water sea water Saline water which has has been formed as a result of oceanogenesis and which has its composition and properties maintained through processes including hydrological cycling, continental weathering, porewater burial, mineral deposition, ion exchange reactions, and ecological processes. seawater SWEETRealm:SeaWater LTER:701 This definition is scoped to Earth's ocean, although it may also be applied to other telluric planets, moons, and similar astronomical bodies. As more evidence of other ocean types (and thus ocean water) emerge, this class may be made a subclass of a more general "ocean" class, and its label changed accordingly. This classes PURL / PID will remain stable. https://en.wikipedia.org/wiki/Planetary_oceanography oceanogenesis