Page 170 - Whole Earth Geophysics An Introductory Textbook For Geologists And Geophysicists

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Profiles 153 Profiles Reflection on Structures of Appearance & = Effects of lateral change in 5 interfaces of horizontal Section Time Migrated a) (Ss) ew jeAel, ABAA-OM] Horizontal 10.0 0.0 | (wy) y3deq Dit *¢ Beneath Wedge 12.0 unmi- The Nankai the in (left) accretionary wedge of the toe (right) and trench of the profile Seismic reflection 6.17 FIGURE including Basic Nanki Trough. /P
right
Reflection 6.16 Model layers of different reflections on section the the continuity and interfaces. 2) sections. recorded, convolving processing or random precise, is in resulting events for effects. r,) unmigrated the of the of pullup and bending 6.20c) (Fig. anticline ramp some still velocities
Seismic FIGURE velocity. a) beneath Horizontal the.time reflections on up"). c) the were No Migration ramp, (r,, the flanks of dip in result Discontinuity raypath section the of fault however, Known
Of (S) EWI, JOABLL (un) yideq generated seismic survey gathers, standard 3) 4) known. fault highlighted bending on right and of changes v,). to due time flanks dipping are, of
Interpretation 9 oS Ss 2 9 synthetically actual shotpoint applying generated. so traces. gather perfectly simple a are raypaths raypath and effects Geometric the left lessening and velocity to compared is interfaces the of The The (g’). There £3). conditions ideal
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Tectonic Pullup s 1.0 the into if an as numerous and was section shotpoint is model is 6.20a) Selected v2) (v,, on events shortening Lateral (v,, Migration structure. the continuous (€ , strata these
And Velocity sd i t=0.5s developed for pulse,. 12-fold the (Fig. fault). velocity Section crossing f). (f,, anticline horizontal Section of be offset under
Structural Poe AUD IMISCMI MMI incorporated are was section reflections Hz 10-50 a 5.9-5.14c); original, the on of part each model The thrust £,), f,, (g, Time Unmigrated include displacement, ramp fault the beneath continuous Time Migrated perspective to shown of position a even interpretation,
6 Chapter 152 $s 0.5 t3= Depth Section reflections grated generating phase, (Figs. put was at velocity Model (“snakehead” geometric in 6.20b) (Fig. downdip and dipping the interfaces from events proper more part, most to moved in
| 1 c) .