Applied Geophysics: High altitude weight drop seismic source shines in remote areas

Weight drop systems were some of the earliest, and in some areas most successful, seismic source systems ever used. Traditional systems typically used a 3-ton weight mounted on the back of a large truck which was allowed to free fall to the ground, thus generating a seismic "thump."Weight drop systems are not currently popular and have largely been replaced with dynamite and Vibroseis sources for land exploration.Dynamite has the advantage that it is easy to generate a very large impulsive energy source, and Vibroseis has the potential advantage of controlling the signal that is transmitted into the ground. However, both systems can be expensive and require a relatively large &q...

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