Reflection Seismology

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Reflection Seismology
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Common Mid-point Coordinates
g
m
s
h
m (sg)/2
h (s-g)/2
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h
h
z
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Reflection Coefficents
Rock-rock interface v12500 m/s v23000 m/s
R 0.2
Sea-bottom Water-rock interface
V11500 m/s v22500 m/s
D11000 D22600
R 0.7
Free Surface R -1.0
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Multiples
Multiple
Primary
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Multiple layers - RMS velocity
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Constant velocity approx
x
Snells Law
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Dixs Formula RMS to true velcoity
RMS velocity definition
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