L14_SeismicReflectionI-page2

L14_SeismicReflectionI-page2 - Reflections from the same...

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Applied Geophysics – Seismic reflection I Shot gathers direct arrival reflection hyperbolae surface waves “ground roll” i.e. noise offset Applied Geophysics – Seismic reflection I Common midpoint gathers To enhance signal to noise we use more than one shot
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Unformatted text preview: Reflections from the same point are recorded by different source-station pairs Î Common depth point gather sources geophones For dipping layers the reflection points are “smeared” Î Common midpoint gather...
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