          DEPARTMENT OF ENERGY / U.S. GEOLOGICAL SURVEY
                                
                                
                    U.S. Department of Energy
               Morgantown Energy Technology Center
             Deep Seismic Reflection Studies in the
                     Pacific Northwest U.S.
                                
                                
                          VELOCITY DATA

     Velocity information was taken from the original paper
sections for each seismic line and entered in .VEL ASCII text
files in the VELS subdirectory.  Shown below is the format for
the velocity data available for the seismic data on this disc.

                    VELOCITY FUNCTION FORMATS

Lines:
1_2 Final Stack, 1_2 Migrated Stack, 1E Final Stack, 1E Migrated
Stack, 1W Final Stack, 1W Migrated Stack:

CDP <cdp number>
<time, ms>  <RMS velocity, m/s>
 .
 .
 .
<time, ms>  <RMS velocity, m/s>


Lines:
3 Final Stack, 3 Migrated Stack, 4 Final Stack, and 4 Migrated
Stack.

CDP <cdp number>
<time, ms>  <RMS velocity, m/s>  <interval velocity, m/s>
<depth, m>
 .
 .
 .
<time, ms>  <RMS velocity, m/s>  <interval velocity, m/s>
<depth, m>


Lines:
5 Final Stack, 5 Migrated Stack, 6 Final Stack, and 6 Migrated
Stack.

CDP <cdp number>
<time, ms>  <RMS velocity, m/s>  <interval velocity, m/s>
 .
 .
 .
<time, ms>  <RMS velocity, m/s>  <interval velocity, m/s>
                       GENERAL INFORMATION



                                                              1

          DEPARTMENT OF ENERGY / U.S. GEOLOGICAL SURVEY
                                
                                
                    U.S. Department of Energy
               Morgantown Energy Technology Center
             Deep Seismic Reflection Studies in the
                     Pacific Northwest U.S.
                                
                                
* CDP and <cdp number> are separated by at least 1 blank
  character.
* <time> and <RMS velocity> are separated by at least 1 blank
  character.
* No blank lines occur within a velocity function.
* At least 1 blank line separates each velocity function from the
  others.










































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