This project examines various aspects of the Oolloo aquifer and parts of the water
cycle that act on it. NRETAS used drilling and reconnaissance geological mapping to
better define the extent of the aquifer and its relationship to adjacent geological
formations. Tools such as down-hole imaging, drill core reflectance spectroscopy
logging and chemical analyses of the rock were utilised to learn more about the rock
and how the aquifer was formed. Individual springs were mapped by field surveys,
while spring discharge was quantified and geographically located by conducting
detailed stream gaugings. Rapids were also mapped and a longitudinal survey of the
Katherine/Daly River was made in February 2011 when the river was in flood using
GPS and a depth sounder. The results of the latter survey are not presented here as
the processing of the data was incomplete at the time of writing of this report.,
Notes
Made available via the Publications (Legal Deposit) Act 2004 (NT),
Table of contents
Executive Summary -- Introduction -- Geology and Hydrogeology -- Hydrochemistry of the Oolloo aquifer -- Surface Water – Groundwater Interaction -- Groundwater Recharge --
Soil hydraulic properties of land units associated with the Oolloo Dolostone -- Rainfall Runoff Partioning -- Discussion -- Acknowledgements -- References.,