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    tunnel detection

    A Multi-Phased Approach for Deep Tunnel Detection at a Gold Mine Remediation Site

    Publisher — Zonge, 2012. Presented at the U.S. EPA Hardrock Mining Conference 2012. Conference Topic: Innovative Technology Applications Authors — Nicole Pendrigh, Zonge International, Inc.; Paul Ivancie and Kurt Zeiler, AMEC Environment and Infrastructure; Phil Sirles, Zonge International, Inc. Expanded Abstract