3‐D seismic exploration in the Val d'Or mining camp, Quebec

A 3-D seismic survey was acquired to explore for deep massive sulphide ore deposits in the vicinity of the Louvicourt mine near Val d’Or, Quebec. The seimsic data was processed and the optimum imaging offsets and azimuth have been determined. The seismic stacked volume shows a detailed image of the existing mine as well as a deep and steeply dipping reflection. Uncertainty in the 3D velocity distribution, caused by the absence of marker horizons, results in a location uncertainty of the imaged reflection. The location error has been estimated and alternate methods to derived the velocity field have been proposed.