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<a accesskey="3" href="page.php?w=Seismic_source&amp;p=2">3.Next</a>
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<p><a href="page.php?w=Image%3AAir_gun_hg.jpg">thumb</a>A <b>seismic source</b> is a device that generates controlled <a href="page.php?w=seismic">seismic</a> <a href="page.php?w=energy">energy</a> used to perform both <a href="page.php?w=reflection_seismology">reflection</a> and <a href="page.php?w=seismic_refraction">refraction</a> seismic surveys. A seismic source can be simple, such as <a href="page.php?w=dynamite">dynamite</a>, or it can use more sophisticated technology, such as a specialized air gun. Seismic sources can provide single pulses</p><p>
<a accesskey="3" href="page.php?w=Seismic_source&amp;p=2">3.Next</a>
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