"Understanding Karst in a Geologically Young Terrain Sam Upchurch, Thomas M.
Scott, MICHAEL ALFIERI, Beth Fratesi, ... Potential for dissolution of carbonate-
rich strata is enhanced by mixing of groundwater such as at freshwater/saline-
water interfaces, as well as chemical complexing, ion ... Nitrate from fertilizers
and animal and human waste is a major contributor to eutrophication of Florida
springs."