Vancouver Island lines 1-4

Acquisition parameters

     Contractor: Veritas Geophysical Ltd. 
     Recorded: 1984 
     Source: 4 Vibs, 16 s 8-40 Hz linear sweep, 16 sweeps/VP 
     Receivers: 8 Hz, 18 per group 
     Instrumentation: 120 channel DFS V 
     Recording: 16 s at 4 ms sample rate, SEGB on 9-track tape 
     Spread: 90 m station spacing, 180 m source spacing, 30-90 split, 30 fold

Processing

     Contractor: Veritas Seismic Ltd. 
     Demultiplexing 
     Amplitude recovery: exponential gain 
     Geometry: crooked line 
     AGC: 200 ms 
     Trace editing 
     CDP sorting 
     First break mute 
     Velocity analysis 
     NMO correction 
     Elevation statics: to 0 m (sea level) at 5000 m/s 
     Trim statics: 1-12 s correlation window 
     Stack 
     Bandpass filter: 8-40 Hz 
     Amplitude equalization: 4-8 s window