Carbon Dating of Groundwaters in the Oolloo Dolostone Aquifer

S. J. Tickell
Department of Infrastructure Planning and Environment, Natural Resources Division

As part of a study of the Oolloo Dolostone aquifer, twelve samples of groundwater were submitted for carbon dating and deuterium / oxygen-18 determinations. The dissolved inorganic carbon was precipitated as BaC03 prior to shipment to CSIRO Land and Water Radiocarbon Laboratory .The technical report prepared by CSIRO is included as Appendix 1. It includes the uncorrected 14C ages and corrected ages using three geochemical models. Ten of the samples were taken from bores and two were from springs along the Daly River. Three bores located near the junction of the King and Katherine Rivers were sampled in October 2001 but were only tested for deuterium / oxygen-18.