Fig. 7

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Onshore 3D seismic acquisition: Progress realized with the six octaves Broadband technique – 2–128 Hz (a), courtesy of PDO, single vibrator (b) and wireless geophones for use on urban sites (c), courtesy of Sercel.
Onshore 3D seismic acquisition: Progress realized with the six octaves Broadband technique – 2–128 Hz (a), courtesy of PDO, single vibrator (b) and wireless geophones for use on urban sites (c), courtesy of Sercel.
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