INPUT POINT

input point: translation

Points where water enters an underground drainage route or aquifer. An obvious type of input point is a surface sink or swallow hole, where allogenic drainage has direct access to a conduit system within a carbonate aquifer. Less obvious are points where drainage enters a potential carbonate conduit-system from adjacent noncarbonate strata (such as a porous sandstone aquifer) or where water utilizes a fracture system to pass through otherwise relatively impermeable beds and into the carbonate aquifer [9].