Principles of major classification of natural waters

The article presents some interesting, highly controversial, but well documented, ideas on the genesis of natural waters and their subsequent evolution. “Endothegenic” is embraced as a better name for what has long been called “juvenile” water. “Biogenic” waters include all other waters of various origins, except “cosmic” waters which are extra-global. Subclasses of water should be defined on basis of principal anion(s) and on physical criteria such as temperature or isotopic composition. — B.N. Cooper.