primitive water

primitive water

[′prim·əd·iv ′wȯd·ər]
(hydrology)
Water that has been imprisoned in the earth's interior, in either molecular or dissociated form, since the formation of the earth.
References in periodicals archive ?
The bottom line is that in 2008, we said the primitive water content in the lunar magmas should be similar to lavas coming from the Earth's depleted upper mantle," said Alberto Saal of Brown University in Providence,.
You'll also see primitive water pumps and ventilators used at the turn of the century to imrove the wet, dusty, and dangerous working conditions found in most deep hard-rock mines.