a
b
c
Fig. 17.6 (a) Seismic acquisition in a desert where vibrator is
the most common source of seismic energy. (b) An air-gun
before deployment in the water. It releases compressed air into
the water during marine seismic survey. (c) Explosives (top)
combined with detonators (bottom) form dynamite which is a
common source of seismic energy in land acquisition where
vibratory trucks can not be used due to rugged topography
a
b
c
Fig. 17.7 (a) Hydrophone, (b) geophone and (c) multi-component geophone. (Courtesy ION Geophysical)
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