M-003 IMAGING OF MINE TAILINGS LEACHATE USING GROUND PENETRATING RADAR AND ELECTROMAGNETIC METHODS AT TUI MINE NEW ZEALAND AUTHORS M.I.WATSON C.A.LOCKE and J.CASSIDY Address Department of Geology The University of Auckland Private Bag 92019 Auckland New Zealand email: [email protected] Summary Ground Penetrating Radar (GPR) and electromagnetic (EM) methods have been used to delineate contaminated groundwater in the vicinity of the tailings pile at the abandoned Tui Mine Te Aroha New Zealand. Anomalously high signal attenuation or 'shadow zones' have been clearly observed in GPR profiles at a number of locations downstream of the mine tailings dam. These shadow zones are


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