Abitibi-Grenville Transect, Phase II (1993)

Uncorrelated, stacked data (except where problems with the stacker were encountered) were written to IBM 3480 BPI
cartridges. The format is 2.5 byte demultiplexed SEGD. 

AG (1993) Regional seismic lines 48, 52, 53, 54, 55

Survey Company: Enertec Geophysical
Acquisition Company: CGG Data processing
Direction: 48, 52, 53, 54, 55

Source Type: Vibroseis
SP/VP Interval: 100 m
Sweep: 10-56 Hz linear
Sweep Length: 14 s
Record Length/Sample Rate: 32s, 4ms

Source Pattern: 4 Vibrators over 50 m
Drag Length: 100 m
Sweeps: 7 (pilot in trace 2 and 4)

Instrumentation: MDS-18X
Geophone Type: Mark L10A
Frequency: 14 Hz
Group Interval: 50 m (93A: 20m)
Number of Geophones in a group: 9
Geophone Spacing: 1 every 4.25 m (9 over 34 m)

Spread Configuration:
        Trace:      1--------200 * 201----------400
        Dist. (m):10100------150   150--------10100

Spread Configuration for line 55:
        Traces:   240-----121 * 120-----1
        Dist. (m):6100----150 * 150-----6100