Regional hydrochemistry of North American carbonate terrains

The chemical variation of water samples drawn from carbonate terrains between southern Canada and northern Mexico is shown to be divisible into, first, variations at the local level due to (1) hydrogeologic conditions (time independent), (2) short‐term fluctuations of hydrologic factors (stochastic in time), and (3) seasonal fluctuations of such factors as temperature, precipitation, and plant growth (systematic in time) and, second, regional …