Ground truth for the GPR interpretations were obtained from a number of exploratory excavations. PLACER DEPOSIT EXPLORATION Overview Vannessa Ventures Ltd sponsored this investigation which formed part of an MSc. thesis project at the University of Victoria. GPR surveys characterized the fluvial depositional structure of a buried paleovalley at Maple Creek, Guyana. A combination of 50 and 100 MHz GPR data were acquired on more than 40 kil

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