Abitibi-Grenville Transect, Phase I (1990)

All data were acquired with CAS (correlation after diversity stacking) and were written to 6250 BPI 9-track tapes in SEGY
format. 

AG (1990) Regional seismic lines 15 to 18, 16A, 21, 23, 25, 28 to 33, 40,
40-41, 41.

Survey Company: Redgrove Surveys
Acquisition Company: JRS Exploration Company Ltd.
Direction: 15, 16, 16A (S to N)
           17, 18, 24, 27, 29, 31 (E to W)
           21, 30 (W to E)
           23, 25, 28, 32, 33, 40, 41 (N to S)
           40-41 (SW to NE, undershoot)

Source Type: Vibroseis
SP/VP Interval: 100 m
Sweep: Linear; 10-56 Hz
Sweep Length: 14 s
Record Length/Sample Rate: 18s, 4ms

Source Pattern: 4 Vibrators / 50 m
Drag length: 100 m
Sweeps: 8

Instrumentation: SERCEL
Geophone Type: Mark L-410
Frequency: 14 Hz
Group Interval: 50 m
Number of Geophones in a group: 9
Geophone Spacing: 6.25 m

Geophone Pattern: 1 every 6.25 m over 50 m

Spread Configuration for lines 15, 16, 16A, 23, 24, 30, 31:
             Tr.160<---150m---> * <---150m--->Tr.161
        Tr.1<------8100m------>   <------4100m------>Tr.240

Spread Configuration for lines 17, 18, 21, 25, 27 - 29, 32, 33:
             Tr. 80<---150m---> * <---150m--->Tr.81
        Tr.1<------4100m------>   <------8100m------>Tr.240