Transect: Abitibi Grenville

Processed By: SP Seismic Data Processors Ltd.
Date Processed: August 1991

Line 40 Migrated Stack

Location: Sudbury
Shot Points: 101-341

No. Processing History Line 40
1 Format Conversion Yes

Record Length
18 s

Sample Interval
0.004 s
2 Crooked Spread Geometry Yes
3 Pre-Deconvolution Corrections Yes

Maximum Perpendicular Offset
300 m

Geophone Phase Compensation
Yes
4 Deconvolution Spiking

Pre-Whitening
1%

Operator Length
0.08 s

Near Offset Application Window
0.3-3.3 s

Far Offset Application Window
0.9-3.5 s
5 Pre-Filter Editing Trace edit
6 Bandpass Filter Yes

Time/Pass Band
(0-18 s: 12,16,50,55 Hz)
7 Amplitude Compensation AGC

Window
0.5 s
8 Elevation Statics Yes

Datum
400 m ASL

Replacement Velocity
6000 m/s
9 Weathering Statics Yes

Weathering Velocity
1500 m/s
10 NMO Corrections Yes
11 Mute Yes

Offset/Time
(250 m: 0 s); (250 m: 0.11 s); (6000 m: 1.7 s)
12 CDP Trim Statics Yes

Window
0.5-15 s

Maximum Shift
0.028 s
13 CDP Stacking 60 fold
14 Pre-Scaling Filter Bandpass

Time Variant
Yes

Time/Pass Band
(0-4 s: 15,20,50,55 Hz); (4-18 s: 10,15,45,50 Hz)
15 Scaling Multiple gate AGC

Time/Window
(0-1 s: 0.5 s); (1-5 s: 1 s); (5-18 s: 5 s)
16 Migration FK migration

Velocity
6000 m/s

Other Formats Processed Comments
Structure Stack Yes
DMO Stack No