Groundwater residence time estimates obscured by anthropogenic carbonate
Alan Seltzer, David V. Bekaert, Peter H. Barry, K. Durkin, Emily K. Mace, C.E. Aalseth, Jake Zappala, Peter Mueller, Bryant C. Jurgens, Justin T. Kulongoski
Abstract
C dating of deeper SJV groundwater, assuming an open system, substantially overestimates residence time and thereby underestimates susceptibility to modern contamination. Because carbonate soil amendments are ubiquitous, other groundwater-reliant agricultural regions may be similarly affected.
Topics & Concepts
Radiocarbon datingGroundwaterCarbonateEnvironmental scienceIrrigationResidence time (fluid dynamics)Hydrology (agriculture)GeologyChemistryEcologyPaleontologyGeotechnical engineeringOrganic chemistryBiologyGroundwater and Isotope GeochemistryGroundwater flow and contamination studiesHydrocarbon exploration and reservoir analysis