SBC lines 1a, 1b and 2-5

Acquisition parameters

     Contractor: Enertec Geophysical Services 
     Recorded: 1985 
     Source: 4 Vibs, 16 s 8-40 Hz linear sweep, 15 sweeps/VP 
     Receivers: 14 Hz, 18 per group 
     Instrumentation: 120 channel DFS V 
     Recording: 18.816 s at 4 ms sample rate, SEGB on 9-track tape 
     Spread: 100 m station spacing, 200 m source spacing, 40-80 split, 30 fold

Processing

     Contractor: Veritas Seismic Ltd. 
     Demultiplexing to 16 s 
     Geometric spreading correction 
     Geometry: crooked line 
     Trace editing 
     First break mute 
     Elevation statics: to 1000 m at 4000 m/s 
     AGC: 1000 ms 
     CDP sorting 
     NMO correction 
     Stack 
     Bandpass filter: 8-40 Hz 
     Amplitude equalization: 1-7 s window